Overall rank by patents
#7,823
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Chang'an University
USPTO PatentsView assignee record — 41 granted patents across 42 technology areas, active 2019–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B60W (CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE).
41
Total patents granted
42
CPC technology areas
8.0
Avg claims per patent
+3900%
5-year filing velocity
The verdict
Chang'an holds 41 US patents across 42 technology areas — rank #7,823 of 50,000 tracked assignees.
- #7,823
- of 50,000 US assignees by volume
- Top 3%
- by Innovation Score (60.6/100)
- 8.0
- avg claims per patent
- +3900%
- filing velocity, last 5 yrs
Portfolio overview
CHANG'AN UNIVERSITY has been granted 41 US utility patents between 2019 and 2025, placing CHANG'AN UNIVERSITY at rank #7,823 across all assignees tracked by PlainPatent. This portfolio spans 42 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.0 claims per patent with primary concentration in B60W (CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE). As a Foreign Corporation, CHANG'AN UNIVERSITY is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 60.6/100 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. Between 2020 and 2025 the company received 40 grants, compared with 1 in the 2015–2019 window — a +3900% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. CHANG'AN UNIVERSITY's 8.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 42 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark CHANG'AN UNIVERSITY against peers pursuing similar technology classes.
How does CHANG'AN 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
- Chang'an Universi… ◀ 41
CHANG'AN UNIVERSITY
41 patents
What this shows CHANG'AN holds 41 patents — placing it at rank #7,823 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
CHANG'AN's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
61 Top 3% higher than 97% 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 · 2019–2025
Grants by year
Teal-shaded recent years (2020–present) versus the 2019–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2019 | 1 | 2.4% |
| 2020 | 3 | 7.3% |
| 2021 | 2 | 4.9% |
| 2022 | 5 | 12.2% |
| 2023 | 7 | 17.1% |
| 2024 | 15 | 36.6% |
| 2025 | 8 | 19.5% |
Which technologies does CHANG'AN UNIVERSITY patent most?
Top 15 of 42 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Multi-domain
Claim Depth Simple
Velocity Accelerating
Frequently Asked Questions
How many patents does CHANG'AN UNIVERSITY hold?
CHANG'AN UNIVERSITY holds 41 US granted patents filed between 2019 and 2025, spanning 42 technology areas.
What is CHANG'AN UNIVERSITY's Innovation Score?
CHANG'AN UNIVERSITY has an Innovation Score of 60.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does CHANG'AN UNIVERSITY focus on?
CHANG'AN UNIVERSITY's top technology area is B60W (CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT) with 8 patents. The company has filed patents in 42 CPC subclasses total.
Is CHANG'AN UNIVERSITY's patent filing rate increasing or decreasing?
CHANG'AN UNIVERSITY's recent filing velocity is +3900% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for CHANG'AN UNIVERSITY's patents?
CHANG'AN UNIVERSITY's patents average 8.0 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the CHANG'AN 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.
Learn More
How to use this portfolio
Chang'an's 41 grants land it in the top 3% 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 — Chang'an ranks #7,823 of 50,000. Top 50 holders
- Most of this portfolio concentrates in B60W — see who else leads that technology area. B60W 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
B60W technology
CHANG'AN UNIVERSITY's primary CPC class — all holders and yearly trends
Top 50 patent holders
See where CHANG'AN UNIVERSITY 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
