Where does WON Kwang S&T Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), WON Kwang S&T Co., Ltd. ranks #33,911 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 WON Kwang S&T Co., Ltd. hold?

WON Kwang S&T Co., Ltd. holds 8 US utility patents granted between 2022 and 2025, spanning 15 technology areas.

What is WON Kwang S&T Co., Ltd.'s Innovation Score?

WON Kwang S&T Co., Ltd. has an Innovation Score of 47.4 out of 100 (top 19% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does WON Kwang S&T Co., Ltd. focus on?

WON Kwang S&T Co., Ltd.'s top technology area is Y02W (Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management) with 6 patents, ranking #141 of 1,160 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

Is WON Kwang S&T Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for WON Kwang S&T Co., Ltd..

What does claim depth mean for WON Kwang S&T Co., Ltd.'s patents?

WON Kwang S&T Co., Ltd.'s patents average 10.3 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 WON Kwang S&T Co., 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 2015–2025 USPTO PatentsView Foreign Corporation

WON Kwang S&T Co., Ltd.

USPTO PatentsView assignee record - 8 granted patents across 15 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: Y02W (Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, WON ranks #33,911 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 15 technology areas.

#33,911
of 49,997 US assignees by volume: Top 19%
by Innovation Score (47.4/100): 10.3
avg claims per patent

USPTO PatentsView assignee plate

Corpus R33911 · Foreign Corporation #33,911 · 8 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 8 grants
MID-PACK #33,911/49,997
PHOTO-FINISH Wing TAK LEE…
CPC-FOCUS Y02W · 15 areas
INNOV-PAR 47.4/100
CLAIMS-PAR 10.3 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2022–2025 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Wing TAK LEE Silicone Rubber Technology (SHENZHEN) Co., Ltd (±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 WON’s 47.4 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 7.6 pts (16%) Velocity 20.0 pts (42%) Breadth 13.7 pts (29%) Claim depth 6.1 pts (13%)

Qualcomm Incorporated · highest

85
WON Kwang S&T · this assignee

47
3D Lighting… · lowest

7

What this shows WON's Innovation Score is 47.4/100 (top 19% 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 WON?

Each dot is one of WON’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). WON’s own 10.3 claims/patent is ABOVE the 7.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where WON's grants concentrate

WON Kwang S&T Co., Ltd. is a focused PatentsView assignee: 15 CPC subclasses with 75% of grants classified under Y02W (Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management). Peak complete grant year is 2024 (3 grants) versus a trough of 2 in 2022. By volume, WON sits between Wing TAK LEE Silicone Rubber Technology (SHENZHEN) Co., Ltd and Wuhan China Star Optoelectronics.

WON's three-year grant acceleration

WON Kwang S&T Co., Ltd. shows 5 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.

Wing TAK LEE Sili…

8
Winn Incorporated

8
Wiph

8
Wolf & Associates

8
Worldline

8
Wowwee Group

8
WTS

8
Wuhan China Star…

8
WON Kwang S&T ◀

8

What this shows WON holds 8 patents at rank #33,865, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near WON

By rank, the assignees closest to #33,865 in granted patent volume.

Leaders in Y02W (Climate Change Mitigation Technologies Related TO Wastewa…)

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

WON's Innovation Score vs. every tracked assignee

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

47 Top 19% higher than 81% 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 · 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

WON Kwang S&T Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	2	25.0%
2024	3	37.5%
2025partial year	3	37.5%

Which technologies does WON Kwang S&T Co., Ltd. patent most?

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 6

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 6

B09B - Disposal OF Solid Waste NOT Otherwise Provided FOR 4

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 4

Y10S - Technical Subjects Covered BY Former Uspc Cross-reference ART Collections [XRACs] AND Digests 3

Y10T - Technical Subjects Covered BY Former US Classification 3

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

H02S - Generation OF Electric Power BY Conversion OF Infrared Radiation, Visible Light OR Ultraviolet Light, e.g. Using Photovoltaic [PV] Modules 3

B26D - CUTTING; Details Common TO Machines FOR Perforating, Punching, Cutting-out, Stamping-out OR Severing 3

H04N - Pictorial Communication, e.g. Television 2

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 1

B65H - Handling Thin OR Filamentary Material, e.g. Sheets, Webs, Cables 1

B29B - Preparation OR Pretreatment OF THE Material TO BE SHAPED; Making Granules OR PREFORMS; Recovery OF Plastics OR Other Constituents OF Waste Material Containing Plastics 1

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 1

B26F - PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; Severing BY Means Other Than Cutting 1

Top 15 of 15 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

WON Kwang S&T Co., Ltd.'s patent record in context - here's where to go next.

WON Kwang S&T Co., Ltd.'s lead technology class is Y02W (Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management), 75% of its portfolio - see every assignee active in that class. Explore Y02W
Ranked #33,911 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare WON Kwang S&T Co., Ltd. against Wing TAK LEE Silicone Rubber Technology (SHENZHEN) Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.4/100 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.