Overall rank by patents
#8,820
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Hunan University OF Science AND Technology
USPTO PatentsView assignee record — 36 granted patents across 38 technology areas, active 2020–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS).
36
Total patents granted
38
CPC technology areas
7.5
Avg claims per patent
—
5-year filing velocity
The verdict
Hunan holds 36 US patents across 38 technology areas — rank #8,820 of 50,000 tracked assignees.
- #8,820
- of 50,000 US assignees by volume
- Top 16%
- by Innovation Score (48.8/100)
- 7.5
- avg claims per patent
Portfolio overview
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY has been granted 36 US utility patents between 2020 and 2025, placing HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY at rank #8,820 across all assignees tracked by PlainPatent. This portfolio spans 38 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.5 claims per patent with primary concentration in E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS). As a Foreign Corporation, HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 48.8/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Filing cadence tells the strategic story. Historical data spans 2020 through 2025, with 36 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.
Claim depth and technology breadth together indicate competitive posture. HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY's 7.5 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 38 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY against peers pursuing similar technology classes.
How does HUNAN compare?
Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀
- Samsung
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
- International Bus…
International Business Machines Corporation
72,926 patents
- Canon 34,378
Canon Kabushiki Kaisha
34,378 patents
- LG 32,607
LG ELECTRONICS INC.
32,607 patents
- Taiwan Semiconduc… 31,041
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
- Apple 30,560
Apple Inc.
30,560 patents
- Qualcomm Incorpor… 30,354
QUALCOMM Incorporated
30,354 patents
- Intel 27,498
Intel Corporation
27,498 patents
- Hunan University… ◀ 36
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
36 patents
What this shows HUNAN holds 36 patents — placing it at rank #8,820 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
HUNAN's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
49 Top 16% higher than 84% 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
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
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2020 | 4 | 11.1% |
| 2021 | 10 | 27.8% |
| 2022 | 7 | 19.4% |
| 2023 | 10 | 27.8% |
| 2024 | 4 | 11.1% |
| 2025 | 1 | 2.8% |
Which technologies does HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY patent most?
Top 15 of 38 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Multi-domain
Claim Depth Simple
Frequently Asked Questions
How many patents does HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY hold?
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY holds 36 US granted patents filed between 2020 and 2025, spanning 38 technology areas.
What is HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY's Innovation Score?
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY has an Innovation Score of 48.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY focus on?
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY's top technology area is E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS) with 11 patents. The company has filed patents in 38 CPC subclasses total.
Is HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY's patent filing rate increasing or decreasing?
Insufficient historical data is available to calculate a velocity trend for HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY.
What does claim depth mean for HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY's patents?
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY's patents average 7.5 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY 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.
Learn More
How to use this portfolio
Hunan's 36 grants land it in the top 16% by Innovation Score — but volume alone doesn't tell you where the strength sits.
- Read that count against the largest US assignees before treating it as dominance — Hunan ranks #8,820 of 50,000. Top 50 holders
- Most of this portfolio concentrates in E21B — see who else leads that technology area. E21B leaders
- Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works
Patent counts and the Innovation Score measure patenting activity — not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.
Explore the patent dataset
E21B technology
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY's primary CPC class — all holders and yearly trends
Top 50 patent holders
See where HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY ranks among the largest US patent assignees
All technology classes
Browse every CPC technology area by patent activity
How the score works
The four dimensions behind the Innovation Score
Related
Data sourced from USPTO PatentsView — official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial
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
