Where does Denso Marston Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Denso Marston Ltd. ranks #24,194 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 Denso Marston Ltd. hold?

Denso Marston Ltd. holds 11 US utility patents granted between 2015 and 2024, spanning 10 technology areas.

What is Denso Marston Ltd.'s Innovation Score?

Denso Marston Ltd. has an Innovation Score of 33.7 out of 100 (45th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Denso Marston Ltd.'s patent grant rate increasing or decreasing?

Denso Marston Ltd.'s recent grant velocity is +20% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Denso Marston Ltd.'s patents?

Denso Marston Ltd.'s patents average 18.8 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 Denso Marston 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

Denso Marston Ltd.

Q: What technology areas does Denso Marston Ltd. focus on?

Denso Marston Ltd.'s top technology area is F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact) with 10 patents, ranking #78 of 801 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 11 granted patents across 10 technology areas, recorded in grant years 2015–2024. 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: F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Denso ranks #24,194 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 10 technology areas.

#24,194
of 49,997 US assignees by volume: 45th percentile
by Innovation Score (33.7/100): 18.8
avg claims per patent: +20%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R24194 · Foreign Corporation #24,194 · 11 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MICRO 11 grants
MID-PACK #24,194/49,997
PHOTO-FINISH Data Scape
CPC-FOCUS F28D · 10 areas
INNOV-THIN 33.7/100
CLAIMS-RICH 18.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +20% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Data Scape 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 Denso’s 33.7 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 8.6 pts (25%) Velocity 2.7 pts (8%) Breadth 11.2 pts (33%) Claim depth 11.3 pts (33%)

Qualcomm Incorporated · highest

85
Denso Marston · this assignee

34
3D Lighting… · lowest

7

What this shows Denso's Innovation Score is 33.7/100 (45th 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 Denso?

Each dot is one of Denso’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). Denso’s own 18.8 claims/patent is at or below the 20.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Denso's grants concentrate

Denso Marston Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 90.9% of grants classified under F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact). Peak complete grant year is 2020 (3 grants) versus a trough of 1 in 2015. By volume, Denso sits between Data Scape Ltd. and Dizpersion Corporation.

Denso's three-year grant acceleration

Denso Marston Ltd. shows 2 grants in 2022–2024 against only 5 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.

Data Scape

11
Data Vault Holdin…

11
Deepintent

11
Denneroll Holding…

11
Deutsche Institut…

11
Dfinity Stiftung

11
Diftek Lasers

11
Dizpersion

11
Denso Marston ◀

11

What this shows Denso holds 11 patents at rank #24,184, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Denso

By rank, the assignees closest to #24,184 in granted patent volume.

Leaders in F28D (Heat-exchange Apparatus)

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

Denso's Innovation Score vs. every tracked assignee

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

34 45th percentile higher than 45% 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 · 2015–2024

Grants by year

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

View data table

Denso Marston Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	9.1%
2016	1	9.1%
2018	2	18.2%
2019	1	9.1%
2020	3	27.3%
2021	1	9.1%
2023	1	9.1%
2024	1	9.1%

Which technologies does Denso Marston Ltd. patent most?

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 10

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 10

Y02T - Climate Change Mitigation Technologies Related TO Transportation 4

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 4

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 3

B60Y - Indexing Scheme Relating TO Aspects Cross-cutting Vehicle Technology 3

F01P - Cooling OF Machines OR Engines IN GENERAL; Cooling OF Internal-combustion Engines 2

Y10T - Technical Subjects Covered BY Former US Classification 1

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 1

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 1

Top 10 of 10 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

Denso Marston Ltd.'s patent record in context - here's where to go next.

Denso Marston Ltd.'s lead technology class is F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact), 90.9% of its portfolio - see every assignee active in that class. Explore F28D
Ranked #24,194 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Denso Marston Ltd. against Data Scape Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.7/100 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.