Where does Keihin Thermal Technology Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Keihin Thermal Technology Corporation ranks #8,061 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 Keihin Thermal Technology Corporation hold?

Keihin Thermal Technology Corporation holds 40 US utility patents granted between 2015 and 2020, spanning 20 technology areas.

What is Keihin Thermal Technology Corporation's Innovation Score?

Keihin Thermal Technology Corporation has an Innovation Score of 33.2 out of 100 (44th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Keihin Thermal Technology Corporation's patent grant rate increasing or decreasing?

Keihin Thermal Technology Corporation's recent grant velocity is -97% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Keihin Thermal Technology Corporation's patents?

Keihin Thermal Technology Corporation's patents average 7.6 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 Keihin Thermal Technology Corporation 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

Keihin Thermal Technology Corporation

Q: What technology areas does Keihin Thermal Technology Corporation focus on?

Keihin Thermal Technology Corporation'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 32 patents, ranking #23 of 801 assignees active in that subclass. Grants appear in 20 CPC subclasses total.

USPTO PatentsView assignee record - 40 granted patents across 20 technology areas, recorded in grant years 2015–2020. 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, Keihin ranks #8,061 of 49,997 tracked US assignees by granted-patent volume, with 40 patents across 20 technology areas.

#8,061
of 49,997 US assignees by volume: 44th percentile
by Innovation Score (33.2/100): 7.6
avg claims per patent: -97%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8061 · Foreign Corporation #8,061 · 40 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 40 grants
UPPER-Q #8,061/49,997
PHOTO-FINISH JCR Pharmaceuticals
CPC-FOCUS F28D · 20 areas
INNOV-THIN 33.2/100
CLAIMS-SPARSE 7.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -97% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: JCR Pharmaceuticals 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 Keihin’s 33.2 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 12.8 pts (39%) Velocity 0.0 pts (0%) Breadth 15.8 pts (48%) Claim depth 4.6 pts (14%)

Qualcomm Incorporated · highest

85
Facet · near

33
Goss International… · near

33
Keihin Thermal… · this assignee

33
Mediamath · near

33
Synology · near

33
3D Lighting… · lowest

7

What this shows Keihin's Innovation Score is 33.2/100 (44th 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 Keihin?

Each dot is one of Keihin’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). Keihin’s own 7.6 claims/patent is at or below the 12.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Keihin's grants concentrate

Keihin Thermal Technology Corporation is a focused PatentsView assignee: 20 CPC subclasses with 80% 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 2017 (12 grants) versus a trough of 1 in 2020. By volume, Keihin sits between JCR Pharmaceuticals Co., Ltd. and Kojima Industries Corporation.

JCR Pharmaceutica…

40
Jetzero

40
Johannes Gutenber…

40
John Zink

40
Kirin Holdings

40
Kuhn

40
Kumiai Chemical I…

40
Kojima Industries

40
Keihin Thermal Te… ◀

40

What this shows Keihin holds 40 patents at rank #8,060, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Keihin

By rank, the assignees closest to #8,060 in granted patent volume.

Leaders in F28D (Heat-exchange Apparatus)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Keihin, neither rank-band nor same-CPC leaders (those blocks stay above). In F28D (Heat-exchange Apparatus), Keihin ranks #23 of 801 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (33 here).

Synology Inc. 33 Goss International Americas, Inc. 33 Facet Technologies, LLC 33 Mediamath, Inc. 33

Keihin's Innovation Score vs. every tracked assignee

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

33 44th percentile higher than 44% 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 · 2015–2020

Grants by year

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

View data table

Keihin Thermal Technology Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	12.5%
2016	9	22.5%
2017	12	30.0%
2018	8	20.0%
2019	5	12.5%
2020	1	2.5%

Which technologies does Keihin Thermal Technology Corporation patent most?

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 32

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 29

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 26

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 9

B60H - Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles 7

Y10T - Technical Subjects Covered BY Former US Classification 6

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 5

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 4

C22C - Alloys 2

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 2

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 2

C21C - Processing OF Pig-iron, e.g. Refining, Manufacture OF Wrought-iron OR STEEL; Treatment IN Molten State OF Ferrous Alloys 1

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 1

F25D - REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR 1

F28B - Steam OR Vapour Condensers 1

Top 15 of 20 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

Keihin Thermal Technology Corporation's patent record in context - here's where to go next.

Keihin Thermal Technology Corporation'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), 80% of its portfolio - see every assignee active in that class. Explore F28D
Ranked #8,061 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Keihin Thermal Technology Corporation against JCR Pharmaceuticals Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.2/100 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.