Where does Kawasaki Railcar Manufacturing Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Kawasaki Railcar Manufacturing Co., Ltd. ranks #15,406 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 Kawasaki Railcar Manufacturing Co., Ltd. hold?

Kawasaki Railcar Manufacturing Co., Ltd. holds 19 US utility patents granted between 2022 and 2025, spanning 21 technology areas.

What is Kawasaki Railcar Manufacturing Co., Ltd.'s Innovation Score?

Kawasaki Railcar Manufacturing Co., Ltd. has an Innovation Score of 52.9 out of 100 (top 9% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Kawasaki Railcar Manufacturing Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Kawasaki Railcar Manufacturing Co., Ltd..

What does claim depth mean for Kawasaki Railcar Manufacturing Co., Ltd.'s patents?

Kawasaki Railcar Manufacturing Co., Ltd.'s patents average 10.6 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 Kawasaki Railcar Manufacturing 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

Kawasaki Railcar Manufacturing Co., Ltd.

Q: What technology areas does Kawasaki Railcar Manufacturing Co., Ltd. focus on?

Kawasaki Railcar Manufacturing Co., Ltd.'s top technology area is B61F (Rail Vehicle Suspensions, e.g. Underframes, Bogies OR Arrangements OF Wheel AXLES; Rail Vehicles FOR USE ON Tracks OF Different WIDTH; Preventing Derailing OF Rail VEHICLES; Wheel Guards, Obstruction Removers OR THE Like FOR Rail Vehicles) with 10 patents, ranking #14 of 85 assignees active in that subclass. Grants appear in 21 CPC subclasses total.

USPTO PatentsView assignee record - 19 granted patents across 21 technology areas, recorded in grant years 2022–2025. 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: B61F (Rail Vehicle Suspensions, e.g. Underframes, Bogies OR Arrangements OF Wheel AXLES; Rail Vehicles FOR USE ON Tracks OF Different WIDTH; Preventing Derailing OF Rail VEHICLES; Wheel Guards, Obstruction ).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Kawasaki ranks #15,406 of 49,997 tracked US assignees by granted-patent volume, with 19 patents across 21 technology areas.

#15,406
of 49,997 US assignees by volume: Top 9%
by Innovation Score (52.9/100): 10.6
avg claims per patent

USPTO PatentsView assignee plate

Corpus R15406 · Foreign Corporation #15,406 · 19 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 19 grants
MID-PACK #15,406/49,997
PHOTO-FINISH Joint Development
CPC-FOCUS B61F · 21 areas
INNOV-PAR 52.9/100
CLAIMS-PAR 10.6 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2022–2025 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Joint Development, 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 Kawasaki’s 52.9 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 10.3 pts (19%) Velocity 20.0 pts (38%) Breadth 16.2 pts (31%) Claim depth 6.4 pts (12%)

Qualcomm Incorporated · highest

85
Kawasaki Railcar… · this assignee

53
3D Lighting… · lowest

7

What this shows Kawasaki's Innovation Score is 52.9/100 (top 9% 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 Kawasaki?

Each dot is one of Kawasaki’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). Kawasaki’s own 10.6 claims/patent is at or below the 12.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Kawasaki's grants concentrate

Kawasaki Railcar Manufacturing Co., Ltd. is a focused PatentsView assignee: 21 CPC subclasses with 52.6% of grants classified under B61F (Rail Vehicle Suspensions, e.g. Underframes, Bogies OR Arrangements OF Wheel AXLES; Rail Vehicles FOR USE ON Tracks OF Different WIDTH; Preventing Derailing OF Rail VEHICLES; Wheel Guards, Obstruction ). Peak complete grant year is 2023 (8 grants) versus a trough of 3 in 2024. By volume, Kawasaki sits between Joint Development, Inc. and Kai Concepts, LLC.

Kawasaki's three-year grant acceleration

Kawasaki Railcar Manufacturing Co., Ltd. shows 17 grants in 2022–2024 against only 0 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.

Joint Development

19
Joint Stock “Scie…

19
Jumpcloud

19
Kaken Pharmaceuti…

19
Kodacloud

19
KVH Industries

19
Kylin Sanitary Te…

19
Kai Concepts

19
Kawasaki Railcar… ◀

19

What this shows Kawasaki holds 19 patents at rank #15,402, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kawasaki

By rank, the assignees closest to #15,402 in granted patent volume.

Leaders in B61F (Rail Vehicle Suspensions)

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

Kawasaki's Innovation Score vs. every tracked assignee

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

53 Top 9% higher than 91% 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 · 2022–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.

View data table

Kawasaki Railcar Manufacturing Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	6	31.6%
2023	8	42.1%
2024	3	15.8%
2025partial year	2	10.5%

Which technologies does Kawasaki Railcar Manufacturing Co., Ltd. patent most?

B61F - Rail Vehicle Suspensions, e.g. Underframes, Bogies OR Arrangements OF Wheel AXLES; Rail Vehicles FOR USE ON Tracks OF Different WIDTH; Preventing Derailing OF Rail VEHICLES; Wheel Guards, Obstruction Removers OR THE Like FOR Rail Vehicles 10

B61D - Body Details OR Kinds OF Railway Vehicles 4

B61K - Auxiliary Equipment Specially Adapted FOR Railways, NOT Otherwise Provided FOR 3

B61L - Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic 2

Y02T - Climate Change Mitigation Technologies Related TO Transportation 2

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 2

B23Q - Details, Components, OR Accessories FOR Machine Tools, e.g. Arrangements FOR Copying OR Controlling ; Machine Tools IN General Characterised BY THE Construction OF Particular Details OR COMPONENTS; Combinations OR Associations OF Metal-working Machines, NOT Directed TO A Particular Result 1

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 1

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 1

E04F - Finishing Work ON Buildings, e.g. Stairs, Floors 1

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 1

E01B - Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds 1

B60H - Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

G01K - Measuring TEMPERATURE; Measuring Quantity OF HEAT; Thermally-sensitive Elements NOT Otherwise Provided FOR 1

Top 15 of 21 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

Kawasaki Railcar Manufacturing Co., Ltd.'s patent record in context - here's where to go next.

Kawasaki Railcar Manufacturing Co., Ltd.'s lead technology class is B61F (Rail Vehicle Suspensions, e.g. Underframes, Bogies OR Arrangements OF Wheel AXLES; Rail Vehicles FOR USE ON Tracks OF Different WIDTH; Preventing Derailing OF Rail VEHICLES; Wheel Guards, Obstruction ), 52.6% of its portfolio - see every assignee active in that class. Explore B61F
Ranked #15,406 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kawasaki Railcar Manufacturing Co., Ltd. against Joint Development, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 52.9/100 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.