Where does Chun Kuang Optics Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chun Kuang Optics Corp. ranks #31,206 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 Chun Kuang Optics Corp. hold?

Chun Kuang Optics Corp. holds 8 US utility patents granted between 2016 and 2023, spanning 6 technology areas.

What is Chun Kuang Optics Corp.'s Innovation Score?

Chun Kuang Optics Corp. has an Innovation Score of 28.0 out of 100 (26th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Chun Kuang Optics Corp.'s patent grant rate increasing or decreasing?

Chun Kuang Optics Corp.'s recent grant velocity is -67% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Chun Kuang Optics Corp.'s patents?

Chun Kuang Optics Corp.'s patents average 8.5 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.

How is the Chun Kuang Optics Corp. 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 2015–2025 USPTO PatentsView Foreign Corporation

Chun Kuang Optics Corp.

Q: What technology areas does Chun Kuang Optics Corp. focus on?

Chun Kuang Optics Corp.'s top technology area is F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted) with 4 patents. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 8 granted patents across 6 technology areas, recorded in grant years 2016–2023. 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: F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Chun ranks #31,206 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 6 technology areas.

#31,206
of 49,997 US assignees by volume: 26th percentile
by Innovation Score (28.0/100): 8.5
avg claims per patent: -67%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R31206 · Foreign Corporation #31,206 · 8 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 8 grants
MID-PACK #31,206/49,997
PHOTO-FINISH CHO Pharma
CPC-NARROW F21Y · 6 areas
INNOV-THIN 28.0/100
CLAIMS-PAR 8.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -67% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: CHO Pharma, 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
Chun Kuang Optics · this assignee

28
3D Lighting… · lowest

7

What this shows Chun's Innovation Score is 28.0/100 (26th percentile 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 Chun's grants concentrate

Chun Kuang Optics Corp. is a focused PatentsView assignee: 6 CPC subclasses with 50% of grants classified under F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted). Peak complete grant year is 2018 (3 grants) versus a trough of 1 in 2016. By volume, Chun sits between CHO Pharma, Inc. and CINNA.

Chun's three-year grant acceleration

Chun Kuang Optics Corp. shows 2 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.

CHO Pharma

8
CHR MAYR + KG

8
Christiana Care H…

8
Chulalongkorn Uni…

8
Chung-hsin Electr…

8
Chunghwa Chemical…

8
Cimc Containers H…

8
Cinna

8
Chun Kuang Optics ◀

8

What this shows Chun holds 8 patents at rank #31,164, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chun

By rank, the assignees closest to #31,164 in granted patent volume.

Leaders in F21Y (Indexing Scheme Associated With Subclasses F21k)

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

Chun's Innovation Score vs. every tracked assignee

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

28 26th percentile higher than 26% 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 · 2016–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Chun Kuang Optics Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	12.5%
2018	3	37.5%
2019	2	25.0%
2023	2	25.0%

Which technologies does Chun Kuang Optics Corp. patent most?

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 4

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 4

G02B - Optical Elements, Systems OR Apparatus 3

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

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

F21L - Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation 1

Top 6 of 6 technology areas

Where it ranks

Overall rank by patents

#31,206

of 49,997 tracked assignees

Innovation Score

28.0 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

Chun Kuang Optics Corp.'s patent record in context - here's where to go next.

Chun Kuang Optics Corp.'s lead technology class is F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted), 50% of its portfolio - see every assignee active in that class. Explore F21Y
Ranked #31,206 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chun Kuang Optics Corp. against CHO Pharma, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.0/100 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.