Where does Chongqing Institute OF East China Normal University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chongqing Institute OF East China Normal University ranks #9,230 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

What is Chongqing Institute OF East China Normal University's Innovation Score?

Chongqing Institute OF East China Normal University has an Innovation Score of 60.2 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%).

What technology areas does Chongqing Institute OF East China Normal University focus on?

Chongqing Institute OF East China Normal University's top technology area is G02B (Optical Elements, Systems OR Apparatus) with 7 patents, ranking #1,362 of 4,891 assignees active in that subclass. Grants appear in 33 CPC subclasses total.

Is Chongqing Institute OF East China Normal University's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Chongqing Institute OF East China Normal University.

What does claim depth mean for Chongqing Institute OF East China Normal University's patents?

Chongqing Institute OF East China Normal University's patents average 12.7 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

Chongqing Institute OF East China Normal University

Q: How many patents does Chongqing Institute OF East China Normal University hold?

Chongqing Institute OF East China Normal University holds 34 US utility patents granted between 2021 and 2025, spanning 33 technology areas.

Q: How is the Chongqing Institute OF East China Normal 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 PatentsView assignee record - 34 granted patents across 33 technology areas, recorded in grant years 2021–2025. 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: G02B (Optical Elements, Systems OR Apparatus).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Chongqing ranks #9,230 of 49,997 tracked US assignees by granted-patent volume, with 34 patents across 33 technology areas.

#9,230
of 49,997 US assignees by volume: Top 3%
by Innovation Score (60.2/100): 12.7
avg claims per patent

USPTO PatentsView assignee plate

Corpus R9230 · Foreign Corporation #9,230 · 34 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-SMALL 34 grants
UPPER-Q #9,230/49,997
PHOTO-FINISH Cabela's
CPC-FOCUS G02B · 33 areas
INNOV-STRONG 60.2/100
CLAIMS-RICH 12.7 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Cabela's LLC (±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 Chongqing’s 60.2 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 12.3 pts (20%) Velocity 20.0 pts (33%) Breadth 20.3 pts (34%) Claim depth 7.6 pts (13%)

Qualcomm Incorporated · highest

85
Verdant Robotics · near

60
Biotronik SE & KG · near

60
Chongqing Institute… · this assignee

60
Lenzing Aktiengesell… · near

60
Sercel · near

60
3D Lighting… · lowest

7

What this shows Chongqing's Innovation Score is 60.2/100 (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 Chongqing?

Each dot is one of Chongqing’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). Chongqing’s own 12.7 claims/patent is ABOVE the 9.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Chongqing's grants concentrate

Chongqing Institute OF East China Normal University is a focused PatentsView assignee: 33 CPC subclasses with 20.6% of grants classified under G02B (Optical Elements, Systems OR Apparatus). Peak complete grant year is 2024 (9 grants) versus a trough of 2 in 2021. By volume, Chongqing sits between CCS Technology Corporation and Cabela's LLC.

Chongqing's three-year grant acceleration

Chongqing Institute OF East China Normal University shows 22 grants in 2022–2024 against only 2 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.

CCS Technology

34
Ceat

34
Centaurus Biophar…

34
Ceragem

34
Chungbuk National…

34
Clari

34
Clay Paky S p A

34
Cabela's

34
Chongqing Institu… ◀

34

What this shows Chongqing holds 34 patents at rank #9,222, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chongqing

By rank, the assignees closest to #9,222 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Chongqing, neither rank-band nor same-CPC leaders (those blocks stay above). In G02B (Optical Elements), Chongqing ranks #1,362 of 4,891 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (60 here).

Biotronik SE & Co. KG 60 Verdant Robotics, Inc. 60 Lenzing Aktiengesellschaft 60 Sercel, Inc 60

Chongqing's Innovation Score vs. every tracked assignee

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

60 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Chongqing Institute OF East China Normal University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	2	5.9%
2022	6	17.6%
2023	7	20.6%
2024	9	26.5%
2025partial year	10	29.4%

Which technologies does Chongqing Institute OF East China Normal University patent most?

G02B - Optical Elements, Systems OR Apparatus 7

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 7

G01J - Measurement OF Intensity, Velocity, Spectral Content, Polarisation, Phase OR Pulse Characteristics OF Infrared, Visible OR Ultraviolet LIGHT; COLORIMETRY; Radiation Pyrometry 7

H01S - Devices Using THE Process OF Light Amplification BY Stimulated Emission OF Radiation [LASER] TO Amplify OR Generate LIGHT; Devices Using Stimulated Emission OF Electromagnetic Radiation IN Wave Ranges Other Than Optical 6

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 6

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 4

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 4

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 4

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 3

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 3

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 3

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 3

B81C - Processes OR Apparatus Specially Adapted FOR THE Manufacture OR Treatment OF Microstructural Devices OR Systems 2

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

C03C - Chemical Composition OF Glasses, Glazes OR Vitreous ENAMELS; Surface Treatment OF GLASS; Surface Treatment OF Fibres OR Filaments Made From Glass, Minerals OR SLAGS; Joining Glass TO Glass OR Other Materials 2

Top 15 of 33 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

Chongqing Institute OF East China Normal University's patent record in context - here's where to go next.

Chongqing Institute OF East China Normal University's lead technology class is G02B (Optical Elements, Systems OR Apparatus), 20.6% of its portfolio - see every assignee active in that class. Explore G02B
Ranked #9,230 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chongqing Institute OF East China Normal University against CCS Technology Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 60.2/100 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.