Where does Zhejiang University City College rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhejiang University City College ranks #16,531 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 City College hold?

Zhejiang University City College holds 18 US utility patents granted between 2022 and 2025, spanning 28 technology areas.

What is Zhejiang University City College's Innovation Score?

Zhejiang University City College has an Innovation Score of 53.0 out of 100 (top 9% 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 City College focus on?

Zhejiang University City College's top technology area is E02D (FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures) with 4 patents, ranking #110 of 430 assignees active in that subclass. Grants appear in 28 CPC subclasses total.

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

Insufficient historical data is available to calculate a velocity trend for Zhejiang University City College.

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

Zhejiang University City College's patents average 6.8 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 City College 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 City College

USPTO PatentsView assignee record - 18 granted patents across 28 technology areas, recorded in grant years 2022–2025. 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: E02D (FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zhejiang ranks #16,531 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 28 technology areas.

#16,531
of 49,997 US assignees by volume: Top 9%
by Innovation Score (53.0/100): 6.8
avg claims per patent

USPTO PatentsView assignee plate

Corpus R16531 · Foreign Corporation #16,531 · 18 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 18 grants
MID-PACK #16,531/49,997
PHOTO-FINISH bioMérieux
CPC-FOCUS E02D · 28 areas
INNOV-PAR 53.0/100
CLAIMS-SPARSE 6.8 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2022–2025 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: bioMérieux, S.A. (±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 53.0 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 10.2 pts (19%) Velocity 20.0 pts (38%) Breadth 18.7 pts (35%) Claim depth 4.1 pts (8%)

Qualcomm Incorporated · highest

85
Zhejiang University… · this assignee

53
3D Lighting… · lowest

7

What this shows Zhejiang's Innovation Score is 53.0/100 (top 9% 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 6.8 claims/patent is at or below the 13.6 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.

Where Zhejiang's grants concentrate

Zhejiang University City College is a focused PatentsView assignee: 28 CPC subclasses with 22.2% of grants classified under E02D (FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures). Peak complete grant year is 2024 (9 grants) versus a trough of 4 in 2022. By volume, Zhejiang sits between Zhejiang Twinsel Electronic Technology Co., Ltd. and iPosi, Inc..

Zhejiang's three-year grant acceleration

Zhejiang University City College shows 17 grants in 2022–2024 against only 0 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.

Zhejiang Twinsel…

18
Zhongshan Dashan…

18
Zurn Water

18
Zeller Digital In…

18
Zhuhai Ding Rong…

18
Zinniatek

18
biomérieux

18
iposi

18
Zhejiang Universi… ◀

18

What this shows Zhejiang holds 18 patents at rank #16,530, 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 #16,530 in granted patent volume.

Leaders in E02D (Foundations)

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

Zhejiang's Innovation Score vs. every tracked assignee

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

53 Top 9% higher than 91% 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 · 2022–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.

View data table

Zhejiang University City College patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	4	22.2%
2023	4	22.2%
2024	9	50.0%
2025partial year	1	5.6%

Which technologies does Zhejiang University City College patent most?

E02D - FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures 4

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 3

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 2

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 2

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 2

E21D - SHAFTS; TUNNELS; GALLERIES; Large Underground Chambers 2

C25D - Processes FOR THE Electrolytic OR Electrophoretic Production OF COATINGS; ELECTROFORMING; Apparatus Therefor 1

A61B - DIAGNOSIS; SURGERY; Identification 1

B05D - Processes FOR Applying Fluent Materials TO Surfaces, IN General 1

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

G06F - Electric Digital Data Processing 1

H02K - Dynamo-electric Machines 1

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

Y10T - Technical Subjects Covered BY Former US Classification 1

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 1

Top 15 of 28 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 City College's patent record in context - here's where to go next.

Zhejiang University City College's lead technology class is E02D (FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures), 22.2% of its portfolio - see every assignee active in that class. Explore E02D
Ranked #16,531 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhejiang University City College against Zhejiang Twinsel Electronic Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 53.0/100 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.