Where does Zhejiang University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhejiang University ranks #506 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Zhejiang University hold?

Zhejiang University holds 888 US utility patents granted between 2015 and 2025, spanning 308 technology areas.

What is Zhejiang University's Innovation Score?

Zhejiang University has an Innovation Score of 73.5 out of 100 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Zhejiang University focus on?

Zhejiang University's top technology area is G06T (Image Data Processing OR Generation, IN General) with 101 patents, ranking #161 of 6,389 assignees active in that subclass. Grants appear in 308 CPC subclasses total.

Is Zhejiang University's patent grant rate increasing or decreasing?

Zhejiang University's recent grant velocity is +336% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Zhejiang University's patents?

Zhejiang University's patents average 8.4 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Zhejiang University patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Zhejiang University

USPTO PatentsView assignee record - 888 granted patents across 308 technology areas, recorded in grant years 2015–2025. 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: G06T (Image Data Processing OR Generation, IN General).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Zhejiang ranks #506 of 49,997 tracked US assignees by granted-patent volume, with 888 patents across 308 technology areas.

#506
of 49,997 US assignees by volume: Top 1%
by Innovation Score (73.5/100): 8.4
avg claims per patent: +336%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R506 · Foreign Corporation #506 · 888 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-BROAD · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 888 grants
TOP-DECILE #506/49,997
PHOTO-FINISH Stmicroelectronics
CPC-BROAD G06T · 308 areas
INNOV-STRONG 73.5/100
CLAIMS-PAR 8.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +336% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Stmicroelectronics, 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.

How Zhejiang’s 73.5 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 23.5 pts (32%) Velocity 20.0 pts (27%) Breadth 25.0 pts (34%) Claim depth 5.0 pts (7%)

Qualcomm Incorporated · highest

85
Bmic · near

73
Zhejiang University · this assignee

73
Advanced Micro Devices · near

73
Hitachi Energy… · near

73
Qualcomm · near

73
3D Lighting… · lowest

7

What this shows Zhejiang's Innovation Score is 73.5/100 (top 1% 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.

Does more volume mean deeper claims for Zhejiang?

Each dot is one of Zhejiang’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Zhejiang’s own 8.4 claims/patent is at or below the 14.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Zhejiang vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How Zhejiang's grant cadence moved

Between 2020–2024, Zhejiang University received 589 grants versus 135 in 2015–2019 (+336% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2024 at 231 grants and bottomed in 2016 at 13. Lead class G06T accounts for 11.4% of the portfolio across 308 subclasses. Volume neighbours: Nissan North America, Inc. (#502) and Furukawa Electric Co., Ltd. (#510).

Zhejiang's three-year grant acceleration

From 2019–2021 to 2022–2024, Zhejiang University moved from 132 to 496 grants (3.76x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #53. See the growth leaderboard.

Nissan North Amer…

890
Shell OIL Compny

890
Epistar

889
Stmicroelectronics

888
Zhejiang Universi… ◀

888
Societe des Produ…

887
Weatherford Techn…

886
Toyota Boshoku

885
Furukawa Electric

883

What this shows Zhejiang holds 888 patents at rank #506, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zhejiang

By rank, the assignees closest to #506 in granted patent volume.

Leaders in G06T (Image Data Processing OR Generation)

Other assignees with the most granted patents in Zhejiang's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Zhejiang, neither rank-band nor same-CPC leaders (those blocks stay above). In G06T (Image Data Processing OR Generation), Zhejiang ranks #161 of 6,389 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (73 here).

Advanced Micro Devices, Inc. 73 Bmic LLC 73 Hitachi Energy Switzerland AG 73 Qualcomm Technologies Inc. 73

Similar claim depth

Nearest assignees by average claims per patent (8.4 here).

Toto Ltd. 8.3 avg Jiangnan University 8.4 avg Horiba, Ltd. 8.3 avg Sumitomo Seika Chemicals Co., Ltd. 8.3 avg

Zhejiang's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

73 Top 1% higher than 99% of 49,997 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

USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Zhejiang University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	35	3.9%
2016	13	1.5%
2017	25	2.8%
2018	23	2.6%
2019	39	4.4%
2020	46	5.2%
2021	47	5.3%
2022	113	12.7%
2023	152	17.1%
2024	231	26.0%
2025partial year	164	18.5%

Which technologies does Zhejiang University patent most?

G06T - Image Data Processing OR Generation, IN General 101

G06F - Electric Digital Data Processing 87

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 78

G06N - Computing Arrangements Based ON Specific Computational Models 66

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 57

G06V - Image OR Video Recognition OR Understanding 46

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 43

A61B - DIAGNOSIS; SURGERY; Identification 41

G02B - Optical Elements, Systems OR Apparatus 37

Y02A - Technologies FOR Adaptation TO Climate Change 36

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 32

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 31

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 30

C07C - Acyclic OR Carbocyclic Compounds 30

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 30

Top 15 of 308 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Zhejiang University's patent record in context - here's where to go next.

Zhejiang University's lead technology class is G06T (Image Data Processing OR Generation, IN General), 11.4% of its portfolio - see every assignee active in that class. Explore G06T
Ranked #506 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhejiang University against Nissan North America, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 73.5/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent , US Patent Intelligence Editorial Process · May 15, 2026

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.