Where does Denka Company Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Denka Company Limited ranks #1,186 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 Denka Company Limited hold?

Denka Company Limited holds 359 US utility patents granted between 2016 and 2025, spanning 118 technology areas.

What is Denka Company Limited's Innovation Score?

Denka Company Limited has an Innovation Score of 61.5 out of 100 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Denka Company Limited focus on?

Denka Company Limited's top technology area is C08L (Compositions OF Macromolecular Compounds) with 92 patents, ranking #52 of 2,352 assignees active in that subclass. Grants appear in 118 CPC subclasses total.

Is Denka Company Limited's patent grant rate increasing or decreasing?

Denka Company Limited's recent grant velocity is +84% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Denka Company Limited's patents?

Denka Company Limited's patents average 9.8 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 Denka Company Limited 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

Denka Company Limited

USPTO PatentsView assignee record - 359 granted patents across 118 technology areas, recorded in grant years 2016–2025. 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: C08L (Compositions OF Macromolecular Compounds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Denka ranks #1,186 of 49,997 tracked US assignees by granted-patent volume, with 359 patents across 118 technology areas.

#1,186
of 49,997 US assignees by volume: Top 3%
by Innovation Score (61.5/100): 9.8
avg claims per patent: +84%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1186 · Foreign Corporation #1,186 · 359 grants

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

GRANTS-MID 359 grants
TOP-DECILE #1,186/49,997
PHOTO-FINISH Institute FOR…
CPC-WIDE C08L · 118 areas
INNOV-STRONG 61.5/100
CLAIMS-PAR 9.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +84% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Institute FOR Information Industry (±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 Denka’s 61.5 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 (33%) Velocity 10.3 pts (17%) Breadth 25.0 pts (41%) Claim depth 5.9 pts (10%)

Qualcomm Incorporated · highest

85
Denka · this assignee

62
DSP Group · near

62
FCA US · near

62
Mitsubishi Gas… · near

62
The Governing… · near

62
3D Lighting… · lowest

7

What this shows Denka's Innovation Score is 61.5/100 (top 3% 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 Denka?

Each dot is one of Denka’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). Denka’s own 9.8 claims/patent is at or below the 14.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Denka's grant cadence moved

Between 2020–2024, Denka Company Limited received 208 grants versus 113 in 2015–2019 (+84% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2024 at 66 grants and bottomed in 2017 at 20. Lead class C08L accounts for 25.6% of the portfolio across 118 subclasses. Volume neighbours: Universiteit Gent (#1,182) and Valeo Systemes d'Essuyage (#1,190).

Denka's three-year grant acceleration

From 2019–2021 to 2022–2024, Denka Company Limited moved from 91 to 141 grants (1.55x 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 #412. See the growth leaderboard.

Universiteit Gent

361
Academia Sinica

360
Institute OF Micr…

360
University of Geo…

360
Institute FOR Inf…

359
South China Unive…

359
Denka ◀

359
Trustees OF Bosto…

358
Valeo Systemes d'…

357

What this shows Denka holds 359 patents at rank #1,186, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Denka

By rank, the assignees closest to #1,186 in granted patent volume.

Leaders in C08L (Compositions OF Macromolecular Compounds)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Denka, neither rank-band nor same-CPC leaders (those blocks stay above). In C08L (Compositions OF Macromolecular Compounds), Denka ranks #52 of 2,352 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (62 here).

Mitsubishi Gas Chemical Company, Inc. 62 FCA US LLC. 62 DSP Group Ltd. 62 The Governing Council of the University of Toronto 62

Similar claim depth

Nearest assignees by average claims per patent (9.8 here).

Huazhong University of Science and Technology 9.8 avg Tongji University 9.8 avg Kabushiki Kaisha F.C.C. 9.8 avg Inspire Medical Systems, Inc. 9.8 avg

Denka's Innovation Score vs. every tracked assignee

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

62 Top 3% higher than 97% 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 · 2016–2025

Grants by year

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

View data table

Denka Company Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	46	12.8%
2017	20	5.6%
2018	23	6.4%
2019	24	6.7%
2020	29	8.1%
2021	38	10.6%
2022	46	12.8%
2023	29	8.1%
2024	66	18.4%
2025partial year	38	10.6%

Which technologies does Denka Company Limited patent most?

C08L - Compositions OF Macromolecular Compounds 92

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 77

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 76

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 72

H01L - Semiconductor Devices NOT Covered BY Class H10 70

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 61

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 59

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 48

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 40

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 40

Y10T - Technical Subjects Covered BY Former US Classification 34

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 29

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 28

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 27

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 24

Top 15 of 118 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

Denka Company Limited's patent record in context - here's where to go next.

Denka Company Limited's lead technology class is C08L (Compositions OF Macromolecular Compounds), 25.6% of its portfolio - see every assignee active in that class. Explore C08L
Ranked #1,186 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Denka Company Limited against Universiteit Gent, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 61.5/100 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.