Is Changchun Institute of Applied Chemistry Chinese Academy of Sciences's patent grant rate increasing or decreasing?

Changchun Institute of Applied Chemistry Chinese Academy of Sciences's recent grant velocity is -54% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Changchun Institute of Applied Chemistry Chinese Academy of Sciences

Q: Where does Changchun Institute of Applied Chemistry Chinese Academy of Sciences rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Changchun Institute of Applied Chemistry Chinese Academy of Sciences ranks #8,554 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Q: How is the Changchun Institute of Applied Chemistry Chinese Academy of Sciences 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 - 37 granted patents across 44 technology areas, recorded in grant years 2015–2025. 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: H10K (Organic Electric Solid-state Devices).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Changchun ranks #8,554 of 49,997 tracked US assignees by granted-patent volume, with 37 patents across 44 technology areas.

#8,554
of 49,997 US assignees by volume: Top 24%
by Innovation Score (45.0/100): 12.1
avg claims per patent: -54%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8554 · Foreign Corporation #8,554 · 37 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 37 grants
UPPER-Q #8,554/49,997
PHOTO-FINISH Cannuflow
CPC-WIDE H10K · 44 areas
INNOV-PAR 45.0/100
CLAIMS-RICH 12.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -54% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Cannuflow, 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 Changchun’s 45.0 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 12.6 pts (28%) Velocity 1.7 pts (4%) Breadth 23.5 pts (52%) Claim depth 7.3 pts (16%)

Qualcomm Incorporated · highest

85
Groove X · near

45
Maersk Drilling A/S · near

45
Changchun Institute… · this assignee

45
Harman Professional… · near

45
The Translational… · near

45
3D Lighting… · lowest

7

What this shows Changchun's Innovation Score is 45.0/100 (top 24% 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 Changchun?

Each dot is one of Changchun’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). Changchun’s own 12.1 claims/patent is at or below the 14.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Changchun's grants concentrate

Changchun Institute of Applied Chemistry Chinese Academy of Sciences is a focused PatentsView assignee: 44 CPC subclasses with 24.3% of grants classified under H10K (Organic Electric Solid-state Devices). Peak complete grant year is 2019 (9 grants) versus a trough of 1 in 2023. By volume, Changchun sits between CPG Interational LLC and ContiTech Antriebssysteme GmbH.

Changchun's three-year grant acceleration

Changchun Institute of Applied Chemistry Chinese Academy of Sciences shows 4 grants in 2022–2024 against only 16 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.

CPG Interational

37
CTB

37
Cannuflow

37
Ceramatec

37
Charcoal Companion

37
Clariant Finance…

37
Consumer Safety T…

37
Contitech Antrieb…

37
Changchun Institu… ◀

37

What this shows Changchun holds 37 patents at rank #8,558, 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 #8,558 in granted patent volume.

Leaders in H10K (Organic Electric Solid-state Devices)

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). In H10K (Organic Electric Solid-state Devices), Changchun ranks #212 of 791 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (45 here).

Harman Professional Denmark Aps 45 The Translational Genomics Research Institute 45 Groove X Inc. 45 Maersk Drilling A/S 45

Changchun's Innovation Score vs. every tracked assignee

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

45 Top 24% higher than 76% 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 · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Changchun Institute of Applied Chemistry Chinese Academy of Sciences patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	5.4%
2016	4	10.8%
2017	5	13.5%
2018	4	10.8%
2019	9	24.3%
2020	4	10.8%
2021	3	8.1%
2022	3	8.1%
2023	1	2.7%
2025partial year	2	5.4%

Which technologies does Changchun Institute of Applied Chemistry Chinese Academy of Sciences patent most?

H10K - Organic Electric Solid-state Devices 9

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 9

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 6

C08L - Compositions OF Macromolecular Compounds 5

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 4

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 4

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 4

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 3

C07C - Acyclic OR Carbocyclic Compounds 3

H01G - CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type 3

C09B - Organic Dyes OR Closely-related Compounds FOR Producing Dyes ; , e.g. PIGMENTS; MORDANTS; Lakes 3

C07D - Heterocyclic Compounds 3

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

G01L - Measuring Force, Stress, Torque, Work, Mechanical Power, Mechanical Efficiency, OR Fluid Pressure 2

Top 15 of 44 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

Changchun Institute of Applied Chemistry Chinese Academy of Sciences's patent record in context - here's where to go next.

Changchun Institute of Applied Chemistry Chinese Academy of Sciences's lead technology class is H10K (Organic Electric Solid-state Devices), 24.3% of its portfolio - see every assignee active in that class. Explore H10K
Ranked #8,554 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Changchun Institute of Applied Chemistry Chinese Academy of Sciences against CPG Interational LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.0/100 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.