Where does Hunan University of Science and Engineering rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hunan University of Science and Engineering ranks #35,756 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 Hunan University of Science and Engineering hold?

Hunan University of Science and Engineering holds 7 US utility patents granted between 2020 and 2025, spanning 8 technology areas.

What is Hunan University of Science and Engineering's Innovation Score?

Hunan University of Science and Engineering has an Innovation Score of 26.8 out of 100 (21st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hunan University of Science and Engineering focus on?

Hunan University of Science and Engineering's top technology area is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes) with 6 patents, ranking #3,449 of 7,163 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

Is Hunan University of Science and Engineering's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Hunan University of Science and Engineering.

What does claim depth mean for Hunan University of Science and Engineering's patents?

Hunan University of Science and Engineering's patents average 4.9 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hunan University of Science and Engineering

Q: How is the Hunan University of Science and Engineering 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 PatentsView assignee record - 7 granted patents across 8 technology areas, recorded in grant years 2020–2025. 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: A61K (Preparations FOR Medical, Dental OR Toiletry Purposes).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hunan ranks #35,756 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 8 technology areas.

#35,756
of 49,997 US assignees by volume: 21st percentile
by Innovation Score (26.8/100): 4.9
avg claims per patent

USPTO PatentsView assignee plate

Corpus R35756 · Foreign Corporation #35,756 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #35,756/49,997
PHOTO-FINISH Hudson Bay Holding B V
CPC-NARROW A61K · 8 areas
INNOV-THIN 26.8/100
CLAIMS-SPARSE 4.9 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2020–2025 · 6y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Hudson Bay Holding B.V. (±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 Hunan’s 26.8 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 7.2 pts (27%) Velocity 6.7 pts (25%) Breadth 10.0 pts (37%) Claim depth 2.9 pts (11%)

Qualcomm Incorporated · highest

85
Hunan University of… · this assignee

27
3D Lighting… · lowest

7

What this shows Hunan's Innovation Score is 26.8/100 (21st percentile 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 Hunan?

Each dot is one of Hunan’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). Hunan’s own 4.9 claims/patent is at or below the 14.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Hunan's grants concentrate

Hunan University of Science and Engineering is a focused PatentsView assignee: 8 CPC subclasses with 85.7% of grants classified under A61K (Preparations FOR Medical, Dental OR Toiletry Purposes). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2020. By volume, Hunan sits between Hudson Bay Holding B.V. and Huuuge Global Ltd..

Hunan's three-year grant acceleration

Hunan University of Science and Engineering shows 3 grants in 2022–2024 against only 3 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.

Hudson Bay Holdin…

7
Huizhou du du Pet…

7
Humanising Autono…

7
Hunan Lianke Tech…

7
Hurricane Safety…

7
Husky Refrigerato…

7
Hutchinson Indust…

7
Huuuge Global

7
Hunan University… ◀

7

What this shows Hunan holds 7 patents at rank #35,760, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hunan

By rank, the assignees closest to #35,760 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Hunan's Innovation Score vs. every tracked assignee

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

27 21st percentile higher than 21% 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 · 2020–2025

Grants by year

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

View data table

Hunan University of Science and Engineering patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	1	14.3%
2021	2	28.6%
2022	2	28.6%
2023	1	14.3%
2025partial year	1	14.3%

Which technologies does Hunan University of Science and Engineering patent most?

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 6

C07K - Peptides 4

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 4

Y02A - Technologies FOR Adaptation TO Climate Change 4

A23L - Foods, Foodstuffs OR Non-alcoholic Beverages, NOT Otherwise Provided FOR; Preparation OR Treatment Thereof 3

A23K - Fodder 3

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 1

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

Top 8 of 8 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

Hunan University of Science and Engineering's patent record in context - here's where to go next.

Hunan University of Science and Engineering's lead technology class is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes), 85.7% of its portfolio - see every assignee active in that class. Explore A61K
Ranked #35,756 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hunan University of Science and Engineering against Hudson Bay Holding B.V., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.8/100 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.