Where does Dongshin Polymer Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dongshin Polymer Co., Ltd. ranks #46,260 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 Dongshin Polymer Co., Ltd. hold?

Dongshin Polymer Co., Ltd. holds 5 US utility patents granted between 2016 and 2024, spanning 3 technology areas.

What is Dongshin Polymer Co., Ltd.'s Innovation Score?

Dongshin Polymer Co., Ltd. has an Innovation Score of 31.2 out of 100 (37th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Dongshin Polymer Co., Ltd. focus on?

Dongshin Polymer Co., Ltd.'s top technology area is E04F (Finishing Work ON Buildings, e.g. Stairs, Floors) with 3 patents, ranking #215 of 584 assignees active in that subclass. Grants appear in 3 CPC subclasses total.

Is Dongshin Polymer Co., Ltd.'s patent grant rate increasing or decreasing?

Dongshin Polymer Co., Ltd.'s recent grant velocity is +50% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Dongshin Polymer Co., Ltd.'s patents?

Dongshin Polymer Co., Ltd.'s patents average 9.2 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 Dongshin Polymer 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

Dongshin Polymer Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 3 technology areas, recorded in grant years 2016–2024. 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: E04F (Finishing Work ON Buildings, e.g. Stairs, Floors).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dongshin ranks #46,260 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 3 technology areas.

#46,260
of 49,997 US assignees by volume: 37th percentile
by Innovation Score (31.2/100): 9.2
avg claims per patent: +50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R46260 · Foreign Corporation #46,260 · 5 grants

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

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,260/49,997
PHOTO-FINISH Dongguan Yixin…
CPC-NARROW E04F · 3 areas
INNOV-THIN 31.2/100
CLAIMS-PAR 9.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dongguan Yixin Magnetic Disk 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 Dongshin’s 31.2 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 6.2 pts (20%) Velocity 13.3 pts (43%) Breadth 6.1 pts (20%) Claim depth 5.5 pts (18%)

Qualcomm Incorporated · highest

85
Dongshin Polymer · this assignee

31
3D Lighting… · lowest

7

What this shows Dongshin's Innovation Score is 31.2/100 (37th 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.

Does more volume mean deeper claims for Dongshin?

Each dot is one of Dongshin’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). Dongshin’s own 9.2 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.

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

Where Dongshin's grants concentrate

Dongshin Polymer Co., Ltd. is a focused PatentsView assignee: 3 CPC subclasses with 60% of grants classified under E04F (Finishing Work ON Buildings, e.g. Stairs, Floors). Peak complete grant year is 2016 (2 grants) versus a trough of 1 in 2021. By volume, Dongshin sits between Dongguan Yixin Magnetic Disk Co., Ltd and Doosan Solus Co., Ltd..

Dongshin's three-year grant acceleration

Dongshin Polymer Co., Ltd. shows 2 grants in 2022–2024 against only 1 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.

Dongguan Yixin Ma…

5
Dongguan Yuanchua…

5
Dongguan Yuanshen…

5
Dongguk Universit…

5
Dongwoo HST

5
Dongwoun Industri…

5
Doosan Enerbnlity

5
Doosan Solus

5
Dongshin Polymer ◀

5

What this shows Dongshin holds 5 patents at rank #46,142, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dongshin

By rank, the assignees closest to #46,142 in granted patent volume.

Leaders in E04F (Finishing Work ON Buildings)

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

Dongshin's Innovation Score vs. every tracked assignee

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

31 37th percentile higher than 37% 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 · 2016–2024

Grants by year

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

View data table

Dongshin Polymer Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	40.0%
2021	1	20.0%
2023	1	20.0%
2024	1	20.0%

Which technologies does Dongshin Polymer Co., Ltd. patent most?

E04F - Finishing Work ON Buildings, e.g. Stairs, Floors 3

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 3

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 1

Top 3 of 3 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

Dongshin Polymer Co., Ltd.'s patent record in context - here's where to go next.

Dongshin Polymer Co., Ltd.'s lead technology class is E04F (Finishing Work ON Buildings, e.g. Stairs, Floors), 60% of its portfolio - see every assignee active in that class. Explore E04F
Ranked #46,260 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dongshin Polymer Co., Ltd. against Dongguan Yixin Magnetic Disk Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.2/100 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.