Overall rank by patents
#26,442
of 50,000 tracked assignees
USPTO PatentsView assignee record - 10 granted patents across 13 technology areas, recorded in grant years 2018–2024. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: A61L (METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES;).
The verdict
According to USPTO PatentsView, Hangzhou ranks #26,442 of 50,000 tracked US assignees by granted-patent volume, with 10 patents across 13 technology areas.
USPTO PatentsView assignee plate
Corpus R26442 · Foreign Corporation #26,442 · 10 grants
GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL
Nearest grant-volume peer: Hamburger's Specialty Vehicles, Inc. (±0 grants)
Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
Qualcomm Incorporated · highest
85 score
Hangzhou Singclean M… · this assignee
35 score
3D Lighting Innovati… · lowest
7 score
What this shows Hangzhou's Innovation Score is 34.6/100 (top 52% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.
Hangzhou Singclean Medical Products Co., Ltd is a focused PatentsView assignee: 13 CPC subclasses with 70% of grants classified under A61L (METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES;). Peak complete grant year is 2020 (2 grants) versus a trough of 1 in 2018. By volume, Hangzhou sits between Hamburger's Specialty Vehicles, Inc. and Harken, Incorporated.
Hangzhou Singclean Medical Products Co., Ltd shows 5 grants in 2022–2024 against only 4 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
Hamburger's Specialty Vehicles, Inc.
10 patents
Handscape Inc.
10 patents
Hanergy Hi-Tech Power (HK) Limited
10 patents
Hangzhou Innogate Pharma Co., Ltd.
10 patents
Hankkija Oy
10 patents
Hankscraft, Inc.
10 patents
Hanover Prest-Paving Company
10 patents
Harken, Incorporated
10 patents
Hangzhou Singclean Medical Products Co., Ltd
10 patents
What this shows Hangzhou holds 10 patents at rank #26,472, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #26,472 in granted patent volume.
Other assignees with the most granted patents in Hangzhou's primary technology class.
Hangzhou's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
35 Top 52% higher than 48% of 50,000 US assignees
Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025
Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2018 | 1 | 10.0% |
| 2020 | 2 | 20.0% |
| 2021 | 2 | 20.0% |
| 2022 | 2 | 20.0% |
| 2023 | 1 | 10.0% |
| 2024 | 2 | 20.0% |
Top 13 of 13 technology areas
Overall rank by patents
#26,442
of 50,000 tracked assignees
34.6 out of 100
Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.