Technology landscape · Autonomous scrubber-dryers · 2019–2024
The autonomous scrubber-dryer patent record is written by robot-cleaner brands; professional manufacturers hold 95 of 2,766 families.
Families with a first filing rose from 177 in 2019 to 620 in 2022, and 92.7% of all families reach the Chinese office.
- Data
- EPO PATSTAT Global, Spring 2026 (patstat_2026a)
- Unit
- DOCDB family, earliest filing year
- Scope
- CPC A47L11/26, /28, /29 subtrees × A47L2201
- Queries
- 13, all published
- 92.7%
of the 2,766 families have a member at the Chinese office.
Where - 51.9%
compound annual growth from 177 families in 2019 to 620 in 2022.
Growth - 6.4%
is the largest share any applicant holds: Beijing Roborock with 178 families.
Applicants - 95
families (3.4%) come from 14 manufacturers of professional cleaning equipment.
Professional - 57.2%
of the 2019–2021 families hold at least one granted member.
Grants
01 · Scope
Crossing two code sets leaves 2,766 families
A family enters the scope when it carries a CPC floor-scrubbing code and a code of the robotic-cleaning indexing scheme A47L2201, the CPC tag for machines that control their own travel. Three entry points into the classification agree on where the subject lives: the WIPO catchword index, the CPC title breadcrumb and the CPC definition texts. The hand implement A47L13/10 and the homonym „SCRUBBING of gases“ (B01D47/00) stay outside.
DOCDB families per classification layer, first filing 2019–2024
Data table: classification layer coverage
| Layer | DOCDB families | Relative to the A47L11 layer |
|---|---|---|
| A47L11 (any group) | 16,121 | 100.0% |
| A47L2201 (robotic indexing) | 7,560 | 46.9% |
| Floor-scrubbing subtree (13 codes) | 6,713 | 41.6% |
| A47L11 × A47L2201 | 6,603 | 41.0% |
| Report scope: scrubbing × A47L2201 | 2,766 | 17.2% |
Query 4Restricting to the scrubbing branch cuts the autonomous set from 6,603 to 2,766
A random sample of 22 families, read by English title, contained no off-topic case. The landscape workflow accepts up to one in five.
The 13 floor-scrubbing codes: three seeds expanded to their full subtree
| CPC | Title | Families in scope |
|---|---|---|
A47L11/26 | Floor-scrubbing machines, hand-driven | 10 |
A47L11/28 | Floor-scrubbing machines, motor-driven | 914 |
A47L11/282 | … having rotary tools | 748 |
A47L11/283 | … the tools being disc brushes | 267 |
A47L11/284 | … having reciprocating tools | 145 |
A47L11/29 | Floor-scrubbing machines characterised by means for taking up dirty liquid | 118 |
A47L11/292 | … having rotary tools | 201 |
A47L11/293 | … the tools being disc brushes | 47 |
A47L11/294 | … having reciprocating tools | 12 |
A47L11/30 | … by suction | 147 |
A47L11/302 | … having rotary tools | 344 |
A47L11/305 | … the tools being disc brushes | 71 |
A47L11/307 | … having reciprocating tools | 18 |
Query 3The autonomy marker A47L2201 adds 8 symbols (/00, /02, /022, /024, /026, /028, /04, /06)
02 · Growth
Filings grew roughly threefold from 2019 to 2022
2019–2020
177 families in 2019, 370 in 2020: a rise of 109.0% in one year.
2021–2022
613 families in 2021, already close to the 620 of 2022. From 2019 to 2022 the compound annual growth rate was 51.9%.
Read with care
2023 (561) and 2024 (425) sit inside the ~18-month publication delay. The decline they show is not read as a change in filing behaviour.
DOCDB families by earliest filing year
Data table: filing trend 2019–2024
| Year | Families | Year on year | Applications | Applications per family |
|---|---|---|---|---|
| 2019 | 177 | — | 615 | 3.47 |
| 2020 | 370 | +109.0% | 812 | 2.19 |
| 2021 | 613 | +65.7% | 1,047 | 1.71 |
| 2022 | 620 | +1.1% | 1,075 | 1.73 |
| 2023* | 561 | −9.5% | 951 | 1.70 |
| 2024* | 425 | −24.2% | 653 | 1.54 |
| Total | 2,766 | — | 5,153 | 1.86 |
Each family counts once, in the earliest filing year across all its members. Applications include every non-design member of a scope family, also those filed outside 2019–2024.
Query 6Hatched: provisional years
Applications per family fall from 3.47 in 2019 to 1.54 in 2024. This fits the same publication delay: later family members such as national-phase entries, continuations and second filings are published after the priority filing. The ratio is not used here as a measure of internationalisation.
03 · Technology
The general motor-driven group outweighs the liquid pick-up group
914 families carry A47L11/28 and 748 its rotary-tool subgroup /282. A47L11/29, the group whose title states the liquid recovery that defines a scrubber-dryer, carries 118; its rotary-tool-with-suction subgroup /302 carries 344.
Families per floor-scrubbing subgroup (non-exclusive)
Data table: floor-scrubbing subgroups
| CPC | Title | Families |
|---|---|---|
A47L11/28 | Floor-scrubbing machines, motor-driven | 914 |
A47L11/282 | … having rotary tools | 748 |
A47L11/302 | … dirty liquid taken up by suction, having rotary tools | 344 |
A47L11/283 | … the tools being disc brushes | 267 |
A47L11/292 | … dirty liquid taken up, having rotary tools | 201 |
A47L11/30 | … dirty liquid taken up by suction | 147 |
A47L11/284 | … having reciprocating tools | 145 |
A47L11/29 | Floor-scrubbing machines characterised by means for taking up dirty liquid | 118 |
A47L11/305 | … by suction, the tools being disc brushes | 71 |
A47L11/293 | … the tools being disc brushes | 47 |
A47L11/307 | … by suction, having reciprocating tools | 18 |
A47L11/294 | … having reciprocating tools | 12 |
A47L11/26 | Floor-scrubbing machines, hand-driven | 10 |
A family carries several codes, including a parent and its children, so the column sums above 2,766.
Query 8Highlighted: A47L11/29, liquid pick-up
Inside the robotic indexing scheme the base station is a patenting field of its own: 483 families carry the docking-station tag A47L2201/02, 296 the emptying of waste-liquid containers, 249 the refilling of cleaning-liquid containers and 237 battery recharging.
Families per robotic-cleaning indexing subgroup (non-exclusive)
Data table: robotic-cleaning indexing subgroups
| CPC | Title | Families |
|---|---|---|
A47L2201/00 | Robotic cleaning machines, i.e. with automatic control of the travelling movement | 1,854 |
A47L2201/04 | Automatic control of the travelling movement; Automatic obstacle detection | 843 |
A47L2201/06 | Control of the cleaning action for autonomous devices | 625 |
A47L2201/02 | Docking stations; Docking operations | 483 |
A47L2201/028 | Refurbishing floor engaging tools, e.g. cleaning of beating brushes | 376 |
A47L2201/024 | Emptying dust or waste liquid containers | 296 |
A47L2201/026 | Refilling cleaning liquid containers | 249 |
A47L2201/022 | Recharging of batteries | 237 |
The parent tag A47L2201/00 sits on 1,854 families alongside one or more of its subgroups.
Query 8A47L2201 exists in CPC only
Both cuts count families, and a family commonly carries a parent group and one of its children at the same time. Column sums therefore exceed 2,766 and the rows are not parts of a whole. No pie or doughnut chart is used for that reason.
04 · Adjacent fields
Autonomy is recorded in the A47L2201 tag, rarely in robotics or navigation classes
171 families (6.2%) carry a G05D control code, 66 a B25J manipulator code and 38 a G01S navigation code. Two Y-section tags follow closely: Y02E with 111 families and Y02B with 106. They tag the battery and building-energy side of the same machines.
CPC subclasses outside A47L carried by the same families
Data table: adjacent CPC subclasses
| CPC subclass | Title | Families | Share of 2,766 |
|---|---|---|---|
G05D | Systems for controlling or regulating non-electric variables | 171 | 6.2% |
Y02E | Reduction of greenhouse gas emissions, related to energy generation, transmission or distribution | 111 | 4.0% |
Y02B | Climate change mitigation technologies related to buildings | 106 | 3.8% |
B25J | Manipulators; chambers provided with manipulation devices | 66 | 2.4% |
F26B | Drying solid materials or objects by removing liquid therefrom | 65 | 2.4% |
A61L | Methods or apparatus for sterilising materials or objects; disinfection | 61 | 2.2% |
B08B | Cleaning in general; prevention of fouling in general | 57 | 2.1% |
D06F | Laundering, drying, ironing, pressing or folding textile articles | 42 | 1.5% |
G01S | Radio direction-finding; radio navigation; determining distance or speed | 38 | 1.4% |
A46B | Brushes | 35 | 1.3% |
Query 8Grey: Y-section tags
Y02B and Y02E are CPC tagging schemes with no IPC equivalent, applied across the whole scheme. A family carrying Y02E also sits in its ordinary subclass, and offices that do not assign CPC are absent from these two rows entirely.
05 · Where
The Chinese share held at 92.7% while the international shares fell
2,564 of the 2,766 families have a member at the Chinese office, against 503 with a WO member, 401 with a US member and 333 with an EP member. 26 offices carry at least one family.
Families with a member at each office
Data table: top filing offices
| Office | Families | Share of 2,766 |
|---|---|---|
| CN · China | 2,564 | 92.7% |
| WO · PCT | 503 | 18.2% |
| US · United States | 401 | 14.5% |
| EP · European Patent Office | 333 | 12.0% |
| KR · Korea | 167 | 6.0% |
| JP · Japan | 119 | 4.3% |
| DE · Germany | 117 | 4.2% |
| AU · Australia | 98 | 3.5% |
| TW · Taiwan | 88 | 3.2% |
| CA · Canada | 36 | 1.3% |
| FR · France | 23 | 0.8% |
| GB · United Kingdom | 22 | 0.8% |
| ES · Spain | 22 | 0.8% |
The 13 further offices hold fewer than 10 families each. A family reaching several offices appears in several rows.
Query 7A family counts at every office where it has a member
Between the 2019–2021 and 2022–2024 halves of the window the Chinese share does not move (92.2% to 93.0%). The US share falls from 21.8% to 9.2% and the PCT share from 22.5% to 15.1%. The German office rises from 3.4% to 4.9%. Part of the international decline is mechanical: a national-phase entry follows its priority filing by up to 30 months, so the later cohorts have had less time to acquire foreign members.
Share of period families reaching each office (%)
Data table: office footprint by period
| Office | 2019–2021 families | Share of 1,160 | 2022–2024 families | Share of 1,606 |
|---|---|---|---|---|
| CN | 1,070 | 92.2% | 1,494 | 93.0% |
| WO | 261 | 22.5% | 242 | 15.1% |
| US | 253 | 21.8% | 148 | 9.2% |
| EP | 167 | 14.4% | 166 | 10.3% |
| KR | 99 | 8.5% | 68 | 4.2% |
| JP | 69 | 5.9% | 50 | 3.1% |
| AU | 53 | 4.6% | 45 | 2.8% |
| DE | 39 | 3.4% | 78 | 4.9% |
| TW | 36 | 3.1% | 52 | 3.2% |
| CA | 30 | 2.6% | 6 | 0.4% |
Periods by the family's earliest filing year. Second-period figures are affected by the publication delay for later family members.
Query 7Grey: 2019–2021 · blue: 2022–2024
Applicant country of the families (a lower bound)
| Applicant country | Families | 2019–2021 | 2022–2024 |
|---|---|---|---|
| CN · China | 427 | 206 | 221 |
| DE · Germany | 85 | 31 | 54 |
| KR · Korea | 83 | 67 | 16 |
| US · United States | 76 | 44 | 32 |
| TW · Taiwan | 13 | 7 | 6 |
| CA · Canada | 12 | 4 | 8 |
| NL · Netherlands | 10 | 2 | 8 |
| FR · France | 7 | 2 | 5 |
| GB · United Kingdom | 7 | 1 | 6 |
| DK · Denmark | 5 | 1 | 4 |
Query 7Coverage from Query 10
Of the 2,764 scope families that carry at least one applicant record, only 731 (26.4%) carry a non-blank applicant country code. The country table is therefore a lower bound and cannot be read as a distribution. The gap is widest for China: 2,564 families have a member at the Chinese office while 427 carry a Chinese applicant country code.
06 · Applicants
No applicant holds more than 6.4% of the scope; reach separates them
Beijing Roborock leads with 178 families, followed by Shenzhen Silver Star with 169 and Dreame Innovation with 141. Roborock takes 132 of its 178 families through the PCT route and 80 to the EPO. Gree Electric, Meizhi Zongheng, Beijing Stone and 3irobotix take none of theirs to either. LG Electronics has the smallest home share of the group: 24 of 61 families reach the Chinese office, 42 the PCT route and 35 the EPO.
The fifteen applicants with the most families in scope
Data table: applicants and their filing routes
| Applicant | Families | Share of 2,766 | With CN member | With WO member | With EP member |
|---|---|---|---|---|---|
| Beijing Roborock | 178 | 6.4% | 126 | 132 | 80 |
| Shenzhen Silver Star | 169 | 6.1% | 166 | 31 | 2 |
| Dreame Innovation | 141 | 5.1% | 133 | 30 | 11 |
| Gree Electric | 102 | 3.7% | 102 | 0 | 0 |
| Yunjing (Narwal) | 75 | 2.7% | 71 | 22 | 19 |
| Ecovacs | 69 | 2.5% | 68 | 6 | 2 |
| Midea | 67 | 2.4% | 52 | 24 | 6 |
| Meizhi Zongheng | 62 | 2.2% | 62 | 0 | 0 |
| LG Electronics | 61 | 2.2% | 24 | 42 | 35 |
| Beijing Stone | 57 | 2.1% | 57 | 0 | 0 |
| Tineco | 53 | 1.9% | 52 | 4 | 1 |
| Haier | 52 | 1.9% | 52 | 1 | 0 |
| SharkNinja | 51 | 1.8% | 46 | 8 | 3 |
| Positec | 45 | 1.6% | 45 | 20 | 13 |
| 3irobotix | 35 | 1.3% | 35 | 0 | 0 |
A co-filed family counts for each of its applicants, so the column sums (1,217 across these fifteen rows) exceed the number of distinct families they cover.
Query 9han_name variants merged by name string
PATSTAT's harmonised name splits several companies across spellings: among applicants with at least four families, Roborock appears under four han_name forms, Silver Star under four and Yunjing under seven. The counts merge spellings of the same name and nothing else, so entities filing under a different brand name remain separate rows.
Name-string consolidation cannot see corporate ownership. Where a group files through subsidiaries with unrelated names, those subsidiaries appear as separate rows and each row understates the group. The rows are applicant entities as PATSTAT harmonises and this report merges them. They are not corporate groups.
07 · Professional
Professional manufacturers file a steady 11 to 21 families a year
Classification records what a machine is, never who buys it. No CPC or IPC code separates a scrubber-dryer sold into a supermarket from one sold into a kitchen. This chapter therefore adds a layer assigned by hand: fourteen applicants whose business is professional cleaning equipment or commercial cleaning robots, and every family that carries one of them. The assignment is an editorial judgement about companies; the patent data does not contain it.
2019
11 professional-segment families, 6.2% of that year's 177.
2020–2022
17, 21 and 19 families. The field around them grew from 177 to 620 a year, so the cohort's share fell to 3.1% in 2022 without its own output falling.
2023–2024, provisional
15 and 12 families. 95 of 2,766 families over six years, 3.4% of the scope.
Professional-segment families by earliest filing year
Data table: professional-segment families by year
| Year | Professional-segment families | All families in scope | Professional share |
|---|---|---|---|
| 2019 | 11 | 177 | 6.2% |
| 2020 | 17 | 370 | 4.6% |
| 2021 | 21 | 613 | 3.4% |
| 2022 | 19 | 620 | 3.1% |
| 2023* | 15 | 561 | 2.7% |
| 2024* | 12 | 425 | 2.8% |
| Total | 95 | 2,766 | 3.4% |
No family in this cohort carries two of the fourteen applicants.
Query 10Hatched: provisional years
Two applicants account for half of the cohort: Gaussian Automation with 28 families and Alfred Kärcher with 21. Their routes point in opposite directions. All 28 Gaussian families reach the Chinese office and none the PCT route or the EPO; 15 of Kärcher's 21 take the PCT route and 10 reach the EPO.
The fourteen professional-segment applicants
| Applicant | Families | Granted | With WO member | With EP member | With CN member |
|---|---|---|---|---|---|
| Gaussian Automation (Shanghai) | 28 | 15 | 0 | 0 | 28 |
| Alfred Kärcher | 21 | 6 | 15 | 10 | 9 |
| Avidbots | 8 | 3 | 3 | 1 | 1 |
| Hako | 7 | 5 | 0 | 7 | 5 |
| Pudu Technology | 7 | 4 | 1 | 0 | 7 |
| Ecovacs Commercial Robot | 5 | 3 | 0 | 0 | 5 |
| Nilfisk | 5 | 1 | 2 | 2 | 0 |
| Suzhou Chenghe Cleaning Equipment | 5 | 1 | 0 | 0 | 5 |
| Kingsun Cleaning Equipment (Suzhou) | 4 | 2 | 0 | 0 | 4 |
| Adlatus Robotics | 1 | 0 | 0 | 0 | 0 |
| Brain Corp | 1 | 0 | 1 | 0 | 0 |
| LionsBot International | 1 | 1 | 1 | 1 | 0 |
| Tennant | 1 | 1 | 1 | 1 | 1 |
| Wetrok | 1 | 0 | 1 | 0 | 0 |
| Cohort total | 95 | 42 | 25 | 22 | 65 |
Query 9All fourteen are companies
Twelve of the fourteen applicants hold eight families or fewer, five of them a single family. At those counts a difference of one or two families is not a signal, and no ranking, trend or growth statement is made about companies below Gaussian Automation and Alfred Kärcher. A single-family count means the applicant filed once in this precise classification intersection; it says nothing about its portfolio overall.
08 · Partners
10.0% of families are co-filed, and no pair reaches double digits
276 of 2,766 families carry more than one applicant. Pairs are read from the application (appln_id), never from the family: a family-level join would pair a company with its own name variants filed at different offices. The 2023 figure of 89 co-filed families sits inside the provisional window and is not interpreted as a change in co-filing behaviour.
Co-filed families by earliest filing year
Data table: co-filed families by year
| Year | Co-filed families | All families | Co-application rate |
|---|---|---|---|
| 2019 | 23 | 177 | 13.0% |
| 2020 | 39 | 370 | 10.5% |
| 2021 | 37 | 613 | 6.0% |
| 2022 | 60 | 620 | 9.7% |
| 2023* | 89 | 561 | 15.9% |
| 2024* | 28 | 425 | 6.6% |
| Total | 276 | 2,766 | 10.0% |
A family counts as co-filed when at least one member carries more than one applicant.
Query 6Hatched: provisional years
The largest pair is Guangzhou Shirui with Guangzhou Shiyuan at 9 joint families. One pair comes from the professional segment: Shanghai Gaussian Automation with Suzhou Gaozhixian Automation, 2 joint families. The recurring pattern is domestic and supplier-shaped: appliance brands filing with a technology supplier in the same city, or a named individual filing alongside a company.
Applicant pairs with at least two joint families
| Applicant A | Applicant B | Joint families |
|---|---|---|
| Guangzhou Shirui Electrical Technology | Guangzhou Shiyuan Electronic Technology | 9 |
| Chen Xiaoping (individual) | Foshan Viomi Electric Appliance Technology | 7 |
| Haier Smart Home | Qingdao Taboer Robot Technology | 6 |
| Shenzhen Youjiyuan Technology | UBTech Robotics | 6 |
| Guangzhou CVTE Electronic Technology | Guangzhou Shirui Electrical Technology | 6 |
| Kingclean Electric | Lexy Electric Green Energy Technology (Suzhou) | 4 |
| Gree Electric Appliances of Zhuhai | Zhuhai Leayun Technology | 3 + 2 † |
| Jiangsu Laike Intelligent Electric Appliance | Kingclean Electric | 3 |
| Jiangsu Laike Intelligent Electric Appliance | Lexy Electric Green Energy Technology (Suzhou) | 3 |
| Shenzhen Youbiye Science and Technology | Shenzhen Youyuan Science and Technology | 3 |
| Shenzhen Jingchuang Zhihang Technology | Xiaowo Intelligent (Beijing) Technology | 3 |
| Shanghai Gaussian Automation Technology | Suzhou Gaozhixian Automation Technology | 2 |
| Shenzhen Beatles Intelligent | Hangzhou Joyoung Household Electrical Appliances | 2 |
| Beijing Shunzao Technology | Suzhou Xiaoshun Technology | 2 |
| Chen, Simon Nai Pong (individual) | Intelligent Cleaning Equipment Holdings | 2 |
Query 11Four further qualifying pairs with two or three joint families are not listed. † Two han_name spellings of Gree Electric; the two sets are disjoint, so the pair covers 5 families. Pairs sharing a single family are below the threshold.
Applicant names were normalised before pairing, so no company is paired with its own han_name spellings. Two affiliated pairs survived because the entities carry different names: Narwel with Yunjing (16 families) and Cloud Whale with Yun Whale (2 families, two translations of the same Chinese name). Both are excluded from the table. Comparable cases this report has not identified may remain.
09 · Grants
57.2% of the 2019–2021 families hold a granted member
For the three cohorts old enough to have completed examination, 663 of 1,160 families hold at least one granted member. The decline from 2022 to 2024 is pendency: those families are largely still in examination, and the 2024 figure of 17.6% will rise with every further PATSTAT edition.
Share of families with a granted member, by filing cohort (%)
Data table: grant rate by filing cohort
| Cohort | Families | With a granted member | Grant rate |
|---|---|---|---|
| 2019 | 177 | 121 | 68.4% |
| 2020 | 370 | 220 | 59.5% |
| 2021 | 613 | 322 | 52.5% |
| 2022* | 620 | 246 | 39.7% |
| 2023* | 561 | 96 | 17.1% |
| 2024* | 425 | 75 | 17.6% |
| 2019–2021 (completed cohorts) | 1,160 | 663 | 57.2% |
| All years | 2,766 | 1,080 | 39.0% |
Query 6Hatched: cohorts still in examination
What is being granted: IPR type of the family members
| IPR type of the family member | Families containing such a member | With a granted member | With a CN member |
|---|---|---|---|
| PI · patent of invention | 2,760 | 1,013 | 2,513 |
| UM · utility model | 124 | 124 | 102 |
| DP · design patent | 1 | 1 | 0 |
Query 13Non-exclusive. Design filings excluded at application level (appln_kind != 'D'); one family keeps a member typed as a design patent under a different application kind.
124 families (4.5% of the scope) contain a utility-model member, and a utility model registers as granted without substantive examination. The grant rates therefore mix two different acts. The report keeps those families and states their number.
10 · How we counted
How the numbers were counted
- One family, one yearA DOCDB family counts once, in the earliest filing year across all its members; the yearly figures sum to 2,766. Pseudo-families and design filings (appln_kind != 'D') are excluded.
- Two code sets, completedThree seeds expanded to 13 codes by a recursive walk on parent, A47L2201 to 8. No predecessor entry and no retired symbol exists for either group. CPC throughout: IPC has no A47L2201 equivalent.
- Counts overlapCodes, offices and applicants are non-exclusive, so their columns sum above 2,766. No pie or doughnut chart is used.
- Recent years are provisional2023 and 2024 sit inside the ~18-month publication delay. No growth or decline statement rests on them; the headline grant rate uses 2019–2021.
Checks and limits
- Title-only families: 562A title search for a scrubbing term combined with an autonomy term returns 605 families in the window; 562 of them, 20.3% of the scope, do not carry the classification profile. The scope was kept tight: widening it would trade away the clean precision sample (0 off-topic in 22). The 562 are a known gap.
- The autonomy marker is CPC-only18,696 families with an IPC floor-scrubbing code have their earliest filing in this window, and 10,669 of them (57.1%) carry no CPC assignment at all. They cannot be reached by A47L2201. Offices that do not assign CPC are under-represented in every figure.
- Applicant country is 26.4% coveredOnly 731 of the 2,764 scope families with an applicant record carry a non-blank country code. The origin table is a lower bound.
- Utility models are included124 families contain a utility-model member, which registers as granted without substantive examination.
- Grant rates from 2022 on are pendencyThose cohorts are still in examination; the headline rate uses 2019–2021 only.
- All members counted for offices and grantsOffice, PCT and grant figures count every non-design member of a scope family, including members filed outside 2019–2024.
- The professional cohort is a floorIt rests on recognising company names. An applicant selling into the commercial market under a name this report did not recognise is counted outside it. Applicants spanning both segments were left out rather than assigned by guess.
- Names merged by stringApplicant variants are merged by the distinctive part of the han_name string; corporate ownership is not followed.
- No second databaseNo Lens.org, Espacenet or Google Patents comparison was run for this scope. The internal consistency checks are listed in queries.sql.
- EditionsProduced on 2026-08-15 with IPC 20260101 and CPC 202608 in force. A later PATSTAT or classification edition will not reproduce these figures exactly.
The frozen scope every analysis query repeats, with the precision sample
Query 5queries.sql · Queries 1–5 build the profile, 6–13 analyse it
Release protocol
- Agentsearch + draftBuilt the search profile and queried PATSTAT read-only. Every number comes from SQL.
- Checks13 rulesEvery claim must trace back to a query; chart and table must agree.
- Reviewsubject expertChecks scope, counts and wording before publication.
- Approvalsecond personA second person not involved in the report approves publication.
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