Where does Yonsung Fine Chemical Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Yonsung Fine Chemical Co., Ltd. ranks #33,963 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 Yonsung Fine Chemical Co., Ltd. hold?

Yonsung Fine Chemical Co., Ltd. holds 8 US utility patents granted between 2015 and 2025, spanning 8 technology areas.

What is Yonsung Fine Chemical Co., Ltd.'s Innovation Score?

Yonsung Fine Chemical Co., Ltd. has an Innovation Score of 24.0 out of 100 (14th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Yonsung Fine Chemical Co., Ltd.'s patent grant rate increasing or decreasing?

Yonsung Fine Chemical Co., Ltd.'s recent grant velocity is +400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Yonsung Fine Chemical Co., Ltd.'s patents?

Yonsung Fine Chemical Co., Ltd.'s patents average 10.8 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 Yonsung Fine Chemical 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

Yonsung Fine Chemical Co., Ltd.

Q: What technology areas does Yonsung Fine Chemical Co., Ltd. focus on?

Yonsung Fine Chemical Co., Ltd.'s top technology area is Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods) with 7 patents. Grants appear in 8 CPC subclasses total.

USPTO PatentsView assignee record - 8 granted patents across 8 technology areas, recorded in grant years 2015–2025. 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: Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Yonsung ranks #33,963 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 8 technology areas.

#33,963
of 49,997 US assignees by volume: 14th percentile
by Innovation Score (24.0/100): 10.8
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R33963 · Foreign Corporation #33,963 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #33,963/49,997
PHOTO-FINISH Yangzhou Jiuyi…
CPC-NARROW Y02P · 8 areas
INNOV-THIN 24.0/100
CLAIMS-PAR 10.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Yangzhou Jiuyi Hardware & Machinery 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.

Qualcomm Incorporated · highest

85
Yonsung Fine Chemical · this assignee

24
3D Lighting… · lowest

7

What this shows Yonsung's Innovation Score is 24.0/100 (14th 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 Yonsung's grants concentrate

Yonsung Fine Chemical Co., Ltd. is a focused PatentsView assignee: 8 CPC subclasses with 87.5% of grants classified under Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods). Peak complete grant year is 2020 (4 grants) versus a trough of 1 in 2015. By volume, Yonsung sits between Yangzhou Jiuyi Hardware & Machinery Co., Ltd. and YUN YUN AI Baby Camera Co., Ltd..

Yangzhou Jiuyi Ha…

8
Yapp Automotive S…

8
Yetter Manufactur…

8
Yfc-boneagle Elec…

8
York Container

8
York Potash

8
Yukiwa Seiko

8
YUN YUN AI Baby C…

8
Yonsung Fine Chem… ◀

8

What this shows Yonsung holds 8 patents at rank #33,938, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Yonsung

By rank, the assignees closest to #33,938 in granted patent volume.

Leaders in Y02P (Climate Change Mitigation Technologies IN THE Production…)

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

Yonsung's Innovation Score vs. every tracked assignee

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

24 14th percentile higher than 14% 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 · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Yonsung Fine Chemical Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	12.5%
2020	4	50.0%
2021	1	12.5%
2025partial year	2	25.0%

Which technologies does Yonsung Fine Chemical Co., Ltd. patent most?

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 7

C07D - Heterocyclic Compounds 5

C07C - Acyclic OR Carbocyclic Compounds 4

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 2

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 2

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 2

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 1

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 1

Top 8 of 8 technology areas

Where it ranks

Overall rank by patents

#33,963

of 49,997 tracked assignees

Innovation Score

24.0 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

Yonsung Fine Chemical Co., Ltd.'s patent record in context - here's where to go next.

Yonsung Fine Chemical Co., Ltd.'s lead technology class is Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods), 87.5% of its portfolio - see every assignee active in that class. Explore Y02P
Ranked #33,963 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Yonsung Fine Chemical Co., Ltd. against Yangzhou Jiuyi Hardware & Machinery Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 24.0/100 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.