Where does Changchun University of Science and Technology rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Changchun University of Science and Technology ranks #39,406 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 Changchun University of Science and Technology hold?

Changchun University of Science and Technology holds 6 US utility patents granted between 2019 and 2025, spanning 17 technology areas.

What is Changchun University of Science and Technology's Innovation Score?

Changchun University of Science and Technology has an Innovation Score of 45.4 out of 100 (top 23% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Changchun University of Science and Technology focus on?

Changchun University of Science and Technology's top technology area is G06V (Image OR Video Recognition OR Understanding) with 2 patents. Grants appear in 17 CPC subclasses total.

Is Changchun University of Science and Technology's patent grant rate increasing or decreasing?

Changchun University of Science and Technology's recent grant velocity is +200% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Changchun University of Science and Technology's patents?

Changchun University of Science and Technology's patents average 6.8 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

Changchun University of Science and Technology

Q: How is the Changchun 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.

USPTO PatentsView assignee record - 6 granted patents across 17 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: G06V (Image OR Video Recognition OR Understanding).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Changchun ranks #39,406 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 17 technology areas.

#39,406
of 49,997 US assignees by volume: Top 23%
by Innovation Score (45.4/100): 6.8
avg claims per patent: +200%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R39406 · Foreign Corporation #39,406 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #39,406/49,997
PHOTO-FINISH Cerebrotech Medical…
CPC-FOCUS G06V · 17 areas
INNOV-PAR 45.4/100
CLAIMS-SPARSE 6.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +200% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Cerebrotech Medical Systems, 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.

Qualcomm Incorporated · highest

85
Bedrock Automation… · near

45
Changchun University… · this assignee

45
Lightel · near

45
Pittsburgh Glass Works · near

45
Radie B V · near

45
3D Lighting… · lowest

7

What this shows Changchun's Innovation Score is 45.4/100 (top 23% 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.

Where Changchun's grants concentrate

Changchun University of Science and Technology is a focused PatentsView assignee: 17 CPC subclasses with 33.3% of grants classified under G06V (Image OR Video Recognition OR Understanding). Peak complete grant year is 2024 (2 grants) versus a trough of 1 in 2019. By volume, Changchun sits between Cerebrotech Medical Systems, Inc. and Charles Buist, DMD, PA.

Changchun's three-year grant acceleration

Changchun University of Science and Technology shows 3 grants in 2022–2024 against only 1 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.

Cerebrotech Medic…

6
Ceres

6
Cern

6
Certus

6
Changjiang River…

6
Changzhou Huada K…

6
Charis & Doxa

6
Charles Buist DMD…

6
Changchun Univers… ◀

6

What this shows Changchun holds 6 patents at rank #39,537, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Changchun

By rank, the assignees closest to #39,537 in granted patent volume.

Leaders in G06V (Image OR Video Recognition OR Understanding)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Changchun, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (45 here).

Pittsburgh Glass Works, LLC 45 Radie B.V. 45 Lightel Technologies, Inc. 45 Bedrock Automation Platforms Inc. 45

Changchun's Innovation Score vs. every tracked assignee

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

45 Top 23% higher than 77% 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

Changchun University of Science and Technology patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	16.7%
2023	1	16.7%
2024	2	33.3%
2025partial year	2	33.3%

Which technologies does Changchun University of Science and Technology patent most?

G06V - Image OR Video Recognition OR Understanding 2

Y02A - Technologies FOR Adaptation TO Climate Change 2

G02B - Optical Elements, Systems OR Apparatus 2

G06F - Electric Digital Data Processing 1

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

G01J - Measurement OF Intensity, Velocity, Spectral Content, Polarisation, Phase OR Pulse Characteristics OF Infrared, Visible OR Ultraviolet LIGHT; COLORIMETRY; Radiation Pyrometry 1

H04N - Pictorial Communication, e.g. Television 1

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 1

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

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

F16H - Gearing 1

F03B - Machines OR Engines FOR Liquids 1

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 1

Top 15 of 17 technology areas

Where it ranks

Overall rank by patents

#39,406

of 49,997 tracked assignees

Innovation Score

45.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

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

Changchun University of Science and Technology's lead technology class is G06V (Image OR Video Recognition OR Understanding), 33.3% of its portfolio - see every assignee active in that class. Explore G06V
Ranked #39,406 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Changchun University of Science and Technology against Cerebrotech Medical Systems, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.4/100 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.