Where does Keihin Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Keihin Corporation ranks #2,774 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 Corporation hold?

Keihin Corporation holds 139 US utility patents granted between 2015 and 2022, spanning 63 technology areas.

What is Keihin Corporation's Innovation Score?

Keihin Corporation has an Innovation Score of 45.8 out of 100 (top 22% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Keihin Corporation focus on?

Keihin Corporation's top technology area is Y02T (Climate Change Mitigation Technologies Related TO Transportation) with 40 patents, ranking #193 of 2,877 assignees active in that subclass. Grants appear in 63 CPC subclasses total.

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

Keihin Corporation's recent grant velocity is -70% 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 Corporation's patents?

Keihin Corporation's patents average 5.7 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 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 Corporation

USPTO PatentsView assignee record - 139 granted patents across 63 technology areas, recorded in grant years 2015–2022. 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: Y02T (Climate Change Mitigation Technologies Related TO Transportation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Keihin ranks #2,774 of 49,997 tracked US assignees by granted-patent volume, with 139 patents across 63 technology areas.

#2,774
of 49,997 US assignees by volume: Top 22%
by Innovation Score (45.8/100): 5.7
avg claims per patent: -70%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2774 · Foreign Corporation #2,774 · 139 grants

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

GRANTS-MID 139 grants
TOP-DECILE #2,774/49,997
PHOTO-FINISH Continuous Composites
CPC-WIDE Y02T · 63 areas
INNOV-PAR 45.8/100
CLAIMS-SPARSE 5.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -70% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Continuous Composites Inc. (±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 45.8 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 17.1 pts (37%) Velocity 0.3 pts (1%) Breadth 25.0 pts (55%) Claim depth 3.4 pts (7%)

Qualcomm Incorporated · highest

85
Parsons Xtreme Golf · near

46
Ingenico · near

46
Keihin · this assignee

46
Phosphorus Free… · near

46
Stine Seed Farm · near

46
3D Lighting… · lowest

7

What this shows Keihin's Innovation Score is 45.8/100 (top 22% 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 5.7 claims/patent is at or below the 13.2 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.

How Keihin's grant cadence moved

Between 2020–2024, Keihin Corporation received 32 grants versus 107 in 2015–2019 (-70% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2017 at 28 grants and bottomed in 2022 at 2. Lead class Y02T accounts for 28.8% of the portfolio across 63 subclasses. Volume neighbours: Continuous Composites Inc. (#2,769) and Nanjing University of Aeronautics and Astronautics (#2,777).

Keihin's three-year grant acceleration

From 2019–2021 to 2022–2024, Keihin Corporation moved from 48 to 2 grants (0.04x 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 #3,239. See the growth leaderboard.

Continuous Compos…

139
Creative Technolo…

139
Joby Aero

139
Japan Aerospace E…

139
Kautex Textron &…

139
National Yang Min…

139
Nuovo Pignone Tec…

139
Nanjing Universit…

139
Keihin ◀

139

What this shows Keihin holds 139 patents at rank #2,773, 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 #2,773 in granted patent volume.

Leaders in Y02T (Climate Change Mitigation Technologies Related TO Transpo…)

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 Y02T (Climate Change Mitigation Technologies Related TO Transpo…), Keihin ranks #193 of 2,877 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (46 here).

Ingenico Inc. 46 Stine Seed Farm, Inc. 46 Phosphorus Free Water Solutions, LLC 46 Parsons Xtreme Golf, LLC 46

Similar claim depth

Nearest assignees by average claims per patent (5.7 here).

Microsoft Corporation 5.7 avg Hong ANN Tool Industries Co., Ltd. 5.7 avg Iseki & Co., Ltd. 5.7 avg Sami Labs Limited 5.7 avg

Keihin's Innovation Score vs. every tracked assignee

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

46 Top 22% higher than 78% 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 · 2015–2022

Grants by year

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

View data table

Keihin Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	27	19.4%
2016	17	12.2%
2017	28	20.1%
2018	17	12.2%
2019	18	12.9%
2020	15	10.8%
2021	15	10.8%
2022	2	1.4%

Which technologies does Keihin Corporation patent most?

Y02T - Climate Change Mitigation Technologies Related TO Transportation 40

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 31

F02D - Controlling Combustion Engines 24

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 16

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 15

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 15

B60H - Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles 15

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 15

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 14

Y10T - Technical Subjects Covered BY Former US Classification 14

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 13

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 11

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 9

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 8

H02K - Dynamo-electric Machines 6

Top 15 of 63 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 Corporation's patent record in context - here's where to go next.

Keihin Corporation's lead technology class is Y02T (Climate Change Mitigation Technologies Related TO Transportation), 28.8% of its portfolio - see every assignee active in that class. Explore Y02T
Ranked #2,774 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Keihin Corporation against Continuous Composites Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.8/100 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.