Where does Zhejiang Ocean University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhejiang Ocean University ranks #14,410 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 Ocean University hold?

Zhejiang Ocean University holds 21 US utility patents granted between 2016 and 2025, spanning 40 technology areas.

What is Zhejiang Ocean University's Innovation Score?

Zhejiang Ocean University has an Innovation Score of 54.9 out of 100 (top 7% 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 Ocean University focus on?

Zhejiang Ocean University's top technology area is B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping) with 6 patents, ranking #129 of 645 assignees active in that subclass. Grants appear in 40 CPC subclasses total.

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

Zhejiang Ocean University's recent grant velocity is +433% 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 Ocean University's patents?

Zhejiang Ocean University's patents average 7.5 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 Ocean 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 Ocean University

USPTO PatentsView assignee record - 21 granted patents across 40 technology areas, recorded in grant years 2016–2025. 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: B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zhejiang ranks #14,410 of 49,997 tracked US assignees by granted-patent volume, with 21 patents across 40 technology areas.

#14,410
of 49,997 US assignees by volume: Top 7%
by Innovation Score (54.9/100): 7.5
avg claims per patent: +433%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14410 · Foreign Corporation #14,410 · 21 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 21 grants
MID-PACK #14,410/49,997
PHOTO-FINISH Zanini Auto Grup
CPC-WIDE B63B · 40 areas
INNOV-PAR 54.9/100
CLAIMS-SPARSE 7.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +433% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Zanini Auto Grup, 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 54.9 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 10.7 pts (19%) Velocity 17.3 pts (32%) Breadth 22.4 pts (41%) Claim depth 4.5 pts (8%)

Qualcomm Incorporated · highest

85
Zhejiang Ocean… · this assignee

55
3D Lighting… · lowest

7

What this shows Zhejiang's Innovation Score is 54.9/100 (top 7% 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 7.5 claims/patent is at or below the 15.1 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 Ocean University is a focused PatentsView assignee: 40 CPC subclasses with 28.6% of grants classified under B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping). Peak complete grant year is 2022 (7 grants) versus a trough of 1 in 2016. By volume, Zhejiang sits between Zanini Auto Grup, S.A. and Zhejiang Normal University.

Zhejiang's three-year grant acceleration

Zhejiang Ocean University shows 13 grants in 2022–2024 against only 5 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.

Zanini Auto Grup

21
Zeavision

21
Zenseact AB

21
ZEV

21
Zobele ESPAÑA

21
Zapata Computing

21
Zestfinance

21
Zhejiang Normal U…

21
Zhejiang Ocean Un… ◀

21

What this shows Zhejiang holds 21 patents at rank #14,405, 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 #14,405 in granted patent volume.

Leaders in B63B (Ships OR Other Waterborne Vessels)

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)

55 Top 7% higher than 93% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Zhejiang Ocean University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	4.8%
2019	2	9.5%
2020	1	4.8%
2021	2	9.5%
2022	7	33.3%
2023	4	19.0%
2024	2	9.5%
2025partial year	2	9.5%

Which technologies does Zhejiang Ocean University patent most?

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 6

A01K - Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals 4

Y02A - Technologies FOR Adaptation TO Climate Change 4

B63C - Launching, Hauling-out, OR Dry-docking OF VESSELS; Life-saving IN WATER; Equipment FOR Dwelling OR Working Under WATER; Means FOR Salvaging OR Searching FOR Underwater Objects 3

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 2

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

B66D - CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists 2

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 2

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 2

F03B - Machines OR Engines FOR Liquids 2

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

F05B - Indexing Scheme Relating TO Wind, Spring, Weight, Inertia OR Like Motors, TO Machines OR Engines FOR Liquids Covered BY Subclasses F03b, F03d AND F03g 2

B63H - Marine Propulsion OR Steering 2

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 1

Top 15 of 40 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 Ocean University's patent record in context - here's where to go next.

Zhejiang Ocean University's lead technology class is B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping), 28.6% of its portfolio - see every assignee active in that class. Explore B63B
Ranked #14,410 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhejiang Ocean University against Zanini Auto Grup, S.A., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 54.9/100 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.