Where does Guangzhou Chinaray Optoelectronic Materials Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Guangzhou Chinaray Optoelectronic Materials Ltd. ranks #10,942 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 Guangzhou Chinaray Optoelectronic Materials Ltd. hold?

Guangzhou Chinaray Optoelectronic Materials Ltd. holds 28 US utility patents granted between 2019 and 2025, spanning 17 technology areas.

What is Guangzhou Chinaray Optoelectronic Materials Ltd.'s Innovation Score?

Guangzhou Chinaray Optoelectronic Materials Ltd. has an Innovation Score of 48.5 out of 100 (top 16% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Guangzhou Chinaray Optoelectronic Materials Ltd. focus on?

Guangzhou Chinaray Optoelectronic Materials Ltd.'s top technology area is H10K (Organic Electric Solid-state Devices) with 28 patents, ranking #109 of 791 assignees active in that subclass. Grants appear in 17 CPC subclasses total.

Is Guangzhou Chinaray Optoelectronic Materials Ltd.'s patent grant rate increasing or decreasing?

Guangzhou Chinaray Optoelectronic Materials Ltd.'s recent grant velocity is +1150% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Guangzhou Chinaray Optoelectronic Materials Ltd.'s patents?

Guangzhou Chinaray Optoelectronic Materials Ltd.'s patents average 14.9 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

Guangzhou Chinaray Optoelectronic Materials Ltd.

Q: How is the Guangzhou Chinaray Optoelectronic Materials Ltd. 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 - 28 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: H10K (Organic Electric Solid-state Devices).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Guangzhou ranks #10,942 of 49,997 tracked US assignees by granted-patent volume, with 28 patents across 17 technology areas.

#10,942
of 49,997 US assignees by volume: Top 16%
by Innovation Score (48.5/100): 14.9
avg claims per patent: +1150%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R10942 · Foreign Corporation #10,942 · 28 grants

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

GRANTS-SMALL 28 grants
UPPER-Q #10,942/49,997
PHOTO-FINISH Fushun Research…
CPC-FOCUS H10K · 17 areas
INNOV-PAR 48.5/100
CLAIMS-RICH 14.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +1150% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Fushun Research Institute of Petroleum and Petrochemicals, Sinopec Corp. (±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 Guangzhou’s 48.5 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 11.6 pts (24%) Velocity 13.3 pts (27%) Breadth 14.6 pts (30%) Claim depth 9.0 pts (19%)

Qualcomm Incorporated · highest

85
DY Auto · near

49
Guangzhou Chinaray… · this assignee

49
Hitachi Systems · near

49
Quantum Machines · near

49
Universite DE Limoges · near

49
3D Lighting… · lowest

7

What this shows Guangzhou's Innovation Score is 48.5/100 (top 16% 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 Guangzhou?

Each dot is one of Guangzhou’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). Guangzhou’s own 14.9 claims/patent is ABOVE the 11.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Guangzhou's grants concentrate

Guangzhou Chinaray Optoelectronic Materials Ltd. is a focused PatentsView assignee: 17 CPC subclasses with 100% of grants classified under H10K (Organic Electric Solid-state Devices). Peak complete grant year is 2022 (10 grants) versus a trough of 2 in 2019. By volume, Guangzhou sits between Fushun Research Institute of Petroleum and Petrochemicals, Sinopec Corp. and H & M Innovations, LLC.

Guangzhou's three-year grant acceleration

Guangzhou Chinaray Optoelectronic Materials Ltd. shows 18 grants in 2022–2024 against only 9 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.

Fushun Research I…

28
Gima S p A

28
GS Caltex

28
GTC Technology US

28
Gabriella White

28
Global Mixed-mode…

28
Guangdong Roman T…

28
H & M Innovations

28
Guangzhou Chinara… ◀

28

What this shows Guangzhou holds 28 patents at rank #10,938, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Guangzhou

By rank, the assignees closest to #10,938 in granted patent volume.

Leaders in H10K (Organic Electric Solid-state Devices)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Guangzhou, neither rank-band nor same-CPC leaders (those blocks stay above). In H10K (Organic Electric Solid-state Devices), Guangzhou ranks #109 of 791 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (49 here).

Hitachi Systems, Ltd. 49 DY Auto Corporation 49 Universite DE Limoges 49 Quantum Machines 49

Guangzhou's Innovation Score vs. every tracked assignee

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

49 Top 16% higher than 84% 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

Guangzhou Chinaray Optoelectronic Materials Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	2	7.1%
2020	4	14.3%
2021	3	10.7%
2022	10	35.7%
2023	6	21.4%
2024	2	7.1%
2025partial year	1	3.6%

Which technologies does Guangzhou Chinaray Optoelectronic Materials Ltd. patent most?

H10K - Organic Electric Solid-state Devices 28

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 21

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 16

C07D - Heterocyclic Compounds 12

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 11

C07C - Acyclic OR Carbocyclic Compounds 10

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 7

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 6

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 2

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 2

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 2

C08L - Compositions OF Macromolecular Compounds 2

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 2

H10D - Inorganic Electric Semiconductor Devices 1

Top 15 of 17 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

Guangzhou Chinaray Optoelectronic Materials Ltd.'s patent record in context - here's where to go next.

Guangzhou Chinaray Optoelectronic Materials Ltd.'s lead technology class is H10K (Organic Electric Solid-state Devices), 100% of its portfolio - see every assignee active in that class. Explore H10K
Ranked #10,942 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Guangzhou Chinaray Optoelectronic Materials Ltd. against Fushun Research Institute of Petroleum and Petrochemicals, Sinopec Corp., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 48.5/100 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.