PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Changzhou Raytech Optronics Co., Ltd.

USPTO PatentsView assignee record - 46 granted patents across 5 technology areas, recorded in grant years 2022–2025. 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).

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The verdict

According to USPTO PatentsView, Changzhou ranks #7,126 of 49,997 tracked US assignees by granted-patent volume, with 46 patents across 5 technology areas.

#7,126
of 49,997 US assignees by volume
Top 20%
by Innovation Score (46.7/100)
9.2
avg claims per patent

USPTO PatentsView assignee plate

Corpus R7126 · Foreign Corporation #7,126 · 46 grants

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

  • GRANTS-SMALL 46 grants
  • UPPER-Q #7,126/49,997
  • PHOTO-FINISH Calgary Scientific
  • CPC-NARROW G02B · 5 areas
  • INNOV-PAR 46.7/100
  • CLAIMS-PAR 9.2 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • SPAN-YRS 2022–2025 · 4y
  • BOOK-RICH 9/10 fields

Nearest grant-volume peer: Calgary Scientific 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 Changzhou’s 46.7 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Innovation-score neighbourhood around Changzhou

Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.

score

What this shows Changzhou's Innovation Score is 46.7/100 (top 20% 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.

Source USPTO PatentsView, PlainPatent Innovation Score As of 2015–2025

Does more volume mean deeper claims for Changzhou?

Each dot is one of Changzhou’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). Changzhou’s own 9.2 claims/patent is at or below the 13.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Changzhou vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView. 2×2 strategic matrix plotting 9 entities by Granted patents (volume) (X) and Avg claims / patent (Y), with a crosshair dividing the plot into four quadrants. Volume + depthSelective & thoroughVolume over depthLean filer 45.946.046.04646.046.046.1 510152025 Granted patents (volume) Avg claims / patent CK Materials LAB Co., Ltd. - 46, 12.46CK Materials LABCrisi Medical Systems, Inc. - 46, 22.28Crisi Medical Sys…Cytec Technology Corp. - 46, 13.13Cytec TechnologyCalgary Scientific Inc. - 46, 18.57Calgary ScientificChina Institute of Water Resources and Hydropower Research - 46, 8.41China Institute o…Chipone Technology (Beijing) Co., Ltd. - 46, 13.28Chipone Technolog…Dental Monitoring - 46, 16.5Dental MonitoringDeutsches Krebsforschungszentrum Stiftung DES ÖFFENTLICHEN Rechts - 46, 10.52Deutsches Krebsfo…Changzhou Raytech Optronics Co., Ltd. - 46, 9.22Changzhou Raytech…
Changzhou vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Changzhou's grants concentrate

Changzhou Raytech Optronics Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 93.5% of grants classified under G02B (Optical Elements, Systems OR Apparatus). Peak complete grant year is 2024 (33 grants) versus a trough of 4 in 2022. By volume, Changzhou sits between CK Materials LAB Co., Ltd. and Deutsches Krebsforschungszentrum Stiftung DES ÖFFENTLICHEN Rechts.

Changzhou's three-year grant acceleration

Changzhou Raytech Optronics Co., Ltd. shows 45 grants in 2022–2024 against only 0 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.

Who files at Changzhou's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Changzhou holds 46 patents at rank #7,130, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Changzhou

By rank, the assignees closest to #7,130 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Changzhou, neither rank-band nor same-CPC leaders (those blocks stay above). In G02B (Optical Elements), Changzhou ranks #351 of 4,891 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (47 here).

Idex Biometrics ASA 47 Guangzhou Lianrou Machinery & Equipment Co., Ltd. 47 Echostar Technologies International Corporation 47 China University OF Geosciences (BEIJING) 47

Changzhou's Innovation Score vs. every tracked assignee

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

47 Top 20% higher than 80% of 49,997 US assignees

This assignee 0 100 every tracked assignee, bucketed by value

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

010203040 2022202320242025 1
USPTO utility patent grants by year · 2022–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.

View data table
Changzhou Raytech Optronics Co., Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2022 4 8.7%
2023 8 17.4%
2024 33 71.7%
2025partial year 1 2.2%

Which technologies does Changzhou Raytech Optronics Co., Ltd. patent most?

Top 5 of 5 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

Changzhou Raytech Optronics Co., Ltd.'s patent record in context - here's where to go next.

  • Changzhou Raytech Optronics Co., Ltd.'s lead technology class is G02B (Optical Elements, Systems OR Apparatus), 93.5% of its portfolio - see every assignee active in that class. Explore G02B
  • Ranked #7,126 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Changzhou Raytech Optronics Co., Ltd. against CK Materials LAB Co., Ltd., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 46.7/100 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

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.