Overall rank by patents
#24,443
of 50,000 tracked assignees
USPTO PatentsView assignee record - 11 granted patents across 2 technology areas, recorded in grant years 2021–2025. 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: A61B (DIAGNOSIS; SURGERY; IDENTIFICATION).
The verdict
According to USPTO PatentsView, Hangzhou ranks #24,443 of 50,000 tracked US assignees by granted-patent volume, with 11 patents across 2 technology areas.
USPTO PatentsView assignee plate
Corpus R24443 · Foreign Corporation #24,443 · 11 grants
GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH
Nearest grant-volume peer: HALO Maritime Defense Systems, 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 Valgen Medt… · this assignee
43 score
3D Lighting Innovati… · lowest
7 score
What this shows Hangzhou's Innovation Score is 42.6/100 (top 30% 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 Valgen Medtech Co., Ltd. is a focused PatentsView assignee: 2 CPC subclasses with 90.9% of grants classified under A61B (DIAGNOSIS; SURGERY; IDENTIFICATION). Peak complete grant year is 2023 (7 grants) versus a trough of 1 in 2021. By volume, Hangzhou sits between HALO Maritime Defense Systems, Inc. and Hazen Paper Company.
Hangzhou Valgen Medtech Co., Ltd. shows 8 grants in 2022–2024 against only 1 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 ◀
HALO Maritime Defense Systems, Inc.
11 patents
HANGZHOU LANPU LIGHTING TECHNOLOGY CO. LTD.
11 patents
HANGZHOU PUSHAI PHARMAEUTICAL TECHNOLOGY CO., LTD.
11 patents
HANGZHOU TARO POSITIONING TECHNOLOGY CO., LTD.
11 patents
HARROW IP, LLC
11 patents
HARVEST-EXCEL INTERNATIONAL PTE. LTD.
11 patents
HAWE Altenstadt Holding GmbH
11 patents
HAZEN PAPER COMPANY
11 patents
HANGZHOU VALGEN MEDTECH CO., LTD.
11 patents
What this shows Hangzhou holds 11 patents at rank #24,430, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #24,430 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)
43 Top 30% higher than 70% 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 2021–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2021 | 1 | 9.1% |
| 2023 | 7 | 63.6% |
| 2024 | 1 | 9.1% |
| 2025partial year | 2 | 18.2% |
Top 2 of 2 technology areas
Overall rank by patents
#24,443
of 50,000 tracked assignees
42.6 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.