Where does Dongwoo Fine-chem Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dongwoo Fine-chem Co., Ltd. ranks #1,207 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 Dongwoo Fine-chem Co., Ltd. hold?

Dongwoo Fine-chem Co., Ltd. holds 351 US utility patents granted between 2015 and 2025, spanning 67 technology areas.

What is Dongwoo Fine-chem Co., Ltd.'s Innovation Score?

Dongwoo Fine-chem Co., Ltd. has an Innovation Score of 63.5 out of 100 (top 2% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Dongwoo Fine-chem Co., Ltd. focus on?

Dongwoo Fine-chem Co., Ltd.'s top technology area is G06F (Electric Digital Data Processing) with 168 patents, ranking #363 of 13,878 assignees active in that subclass. Grants appear in 67 CPC subclasses total.

Is Dongwoo Fine-chem Co., Ltd.'s patent grant rate increasing or decreasing?

Dongwoo Fine-chem Co., Ltd.'s recent grant velocity is +191% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Dongwoo Fine-chem Co., Ltd.'s patents?

Dongwoo Fine-chem Co., Ltd.'s patents average 13.4 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 Dongwoo Fine-chem 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

Dongwoo Fine-chem Co., Ltd.

USPTO PatentsView assignee record - 351 granted patents across 67 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: G06F (Electric Digital Data Processing).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dongwoo ranks #1,207 of 49,997 tracked US assignees by granted-patent volume, with 351 patents across 67 technology areas.

#1,207
of 49,997 US assignees by volume: Top 2%
by Innovation Score (63.5/100): 13.4
avg claims per patent: +191%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1207 · Foreign Corporation #1,207 · 351 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 351 grants
TOP-DECILE #1,207/49,997
PHOTO-FINISH Biedermann & KG
CPC-WIDE G06F · 67 areas
INNOV-STRONG 63.5/100
CLAIMS-RICH 13.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +191% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Biedermann Technologies GMBH & Co. KG (±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 Dongwoo’s 63.5 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 20.3 pts (32%) Velocity 10.2 pts (16%) Breadth 25.0 pts (39%) Claim depth 8.1 pts (13%)

Qualcomm Incorporated · highest

85
Ningde Amperex… · near

64
China Agricultural… · near

64
Agilent · near

64
Dongwoo Fine-chem · this assignee

64
The Heil · near

64
3D Lighting… · lowest

7

What this shows Dongwoo's Innovation Score is 63.5/100 (top 2% 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 Dongwoo?

Each dot is one of Dongwoo’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). Dongwoo’s own 13.4 claims/patent is at or below the 13.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Dongwoo's grant cadence moved

Between 2020–2024, Dongwoo Fine-chem Co., Ltd. received 227 grants versus 78 in 2015–2019 (+191% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2022 at 56 grants and bottomed in 2016 at 4. Lead class G06F accounts for 47.9% of the portfolio across 67 subclasses. Volume neighbours: Knowles Electronics, LLC (#1,203) and Clarion Co., Ltd. (#1,211).

Dongwoo's three-year grant acceleration

From 2019–2021 to 2022–2024, Dongwoo Fine-chem Co., Ltd. moved from 105 to 161 grants (1.53x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #425. See the growth leaderboard.

Knowles

352
Praxair Technology

352
Seiko Instruments

352
Biedermann & KG

351
Lumentum Operatio…

351
Shanghai Tianma A…

351
Shenzhen Smoore T…

351
Dongwoo Fine-chem ◀

351
Clarion

350

What this shows Dongwoo holds 351 patents at rank #1,207, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dongwoo

By rank, the assignees closest to #1,207 in granted patent volume.

Leaders in G06F (Electric Digital Data Processing)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Dongwoo, neither rank-band nor same-CPC leaders (those blocks stay above). In G06F (Electric Digital Data Processing), Dongwoo ranks #363 of 13,878 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (64 here).

Agilent Technologies, Inc. 64 The Heil Co. 64 China Agricultural University 64 Ningde Amperex Technology Limited 64

Similar claim depth

Nearest assignees by average claims per patent (13.4 here).

KIA Corporation 13.4 avg Smith & Wesson Inc. 13.4 avg VueReal Inc. 13.4 avg Siemens Gamesa Renewable Energy Innovation & Technology S. L. 13.4 avg

Dongwoo's Innovation Score vs. every tracked assignee

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

64 Top 2% higher than 98% 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

Dongwoo Fine-chem Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	8	2.3%
2016	4	1.1%
2017	9	2.6%
2018	18	5.1%
2019	39	11.1%
2020	27	7.7%
2021	39	11.1%
2022	56	16.0%
2023	53	15.1%
2024	52	14.8%
2025partial year	46	13.1%

Which technologies does Dongwoo Fine-chem Co., Ltd. patent most?

G06F - Electric Digital Data Processing 168

H01Q - Antennas, i.e. Radio Aerials 109

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 50

G02B - Optical Elements, Systems OR Apparatus 49

H10K - Organic Electric Solid-state Devices 43

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 37

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 37

H01L - Semiconductor Devices NOT Covered BY Class H10 32

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 26

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 18

G03F - Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR; 17

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 16

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 13

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 12

H10D - Inorganic Electric Semiconductor Devices 10

Top 15 of 67 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

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

Dongwoo Fine-chem Co., Ltd.'s lead technology class is G06F (Electric Digital Data Processing), 47.9% of its portfolio - see every assignee active in that class. Explore G06F
Ranked #1,207 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dongwoo Fine-chem Co., Ltd. against Knowles Electronics, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 63.5/100 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.