Where does Chang'an University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chang'an University ranks #7,826 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 Chang'an University hold?

Chang'an University holds 41 US utility patents granted 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 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Chang'an University's patent grant rate increasing or decreasing?

Chang'an University's recent grant velocity is +3100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Chang'an University's patents?

Chang'an University's patents average 8.0 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 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chang'an University

Q: 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, ranking #273 of 1,122 assignees active in that subclass. Grants appear in 42 CPC subclasses total.

USPTO PatentsView assignee record - 41 granted patents across 42 technology areas, recorded in grant years 2019–2025. 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: 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).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Chang'an ranks #7,826 of 49,997 tracked US assignees by granted-patent volume, with 41 patents across 42 technology areas.

#7,826
of 49,997 US assignees by volume: Top 3%
by Innovation Score (60.6/100): 8.0
avg claims per patent: +3100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7826 · Foreign Corporation #7,826 · 41 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 41 grants
UPPER-Q #7,826/49,997
PHOTO-FINISH Canon Virginia
CPC-WIDE B60W · 42 areas
INNOV-STRONG 60.6/100
CLAIMS-SPARSE 8.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +3100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Canon Virginia, Inc. (±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 Chang'an’s 60.6 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 12.9 pts (21%) Velocity 20.0 pts (33%) Breadth 22.9 pts (38%) Claim depth 4.8 pts (8%)

Qualcomm Incorporated · highest

85
Appotronics · near

61
Chang'an University · this assignee

61
Fraunhofer USA · near

61
Lincoln Global · near

61
Teknologian… · near

61
3D Lighting… · lowest

7

What this shows Chang'an's Innovation Score is 60.6/100 (top 3% 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 Chang'an?

Each dot is one of Chang'an’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). Chang'an’s own 8.0 claims/patent is at or below the 14.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Chang'an's grants concentrate

Chang'an University is a focused PatentsView assignee: 42 CPC subclasses with 19.5% of grants classified under 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). Peak complete grant year is 2024 (15 grants) versus a trough of 1 in 2019. By volume, Chang'an sits between CAP Corporation and Capstone Plants, Inc..

Chang'an's three-year grant acceleration

Chang'an University shows 27 grants in 2022–2024 against only 6 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.

CAP

41
Carlisle Intercon…

41
Cavh

41
Cggveritas Servic…

41
Cibt America

41
Clear LAM Packagi…

41
Canon Virginia

41
Capstone Plants

41
Chang'an Universi… ◀

41

What this shows Chang'an holds 41 patents at rank #7,823, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chang'an

By rank, the assignees closest to #7,823 in granted patent volume.

Leaders in B60W (Conjoint Control OF Vehicle Sub-units OF Different Type O…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Chang'an, neither rank-band nor same-CPC leaders (those blocks stay above). In B60W (Conjoint Control OF Vehicle Sub-units OF Different Type O…), Chang'an ranks #273 of 1,122 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (61 here).

Fraunhofer USA 61 Appotronics Corporation Limited 61 Teknologian tutkimuskeskus VTT Oy 61 Lincoln Global, Inc. 61

Chang'an's Innovation Score vs. every tracked assignee

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

61 Top 3% higher than 97% 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 · 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

Chang'an University patent grants by year, 2015–2025
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%
2025partial year	8	19.5%

Which technologies does Chang'an University patent most?

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 8

G06F - Electric Digital Data Processing 6

G08G - Traffic Control Systems 6

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 5

G06T - Image Data Processing OR Generation, IN General 5

H04W - Wireless Communication Networks 4

Y02T - Climate Change Mitigation Technologies Related TO Transportation 4

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 4

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 4

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 3

G01V - GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags 3

E21D - SHAFTS; TUNNELS; GALLERIES; Large Underground Chambers 3

G06V - Image OR Video Recognition OR Understanding 3

G01H - Measurement OF Mechanical Vibrations OR Ultrasonic, Sonic OR Infrasonic Waves 2

E21F - Safety Devices, Transport, Filling-up, Rescue, Ventilation, OR Draining IN OR OF Mines OR Tunnels 2

Top 15 of 42 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

Chang'an University's patent record in context - here's where to go next.

Chang'an University's lead technology class 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), 19.5% of its portfolio - see every assignee active in that class. Explore B60W
Ranked #7,826 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chang'an University against CAP Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 60.6/100 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.