Where does Nippon Sharyo, Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nippon Sharyo, Ltd. ranks #8,651 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 Nippon Sharyo, Ltd. hold?

Nippon Sharyo, Ltd. holds 37 US utility patents granted between 2015 and 2025, spanning 20 technology areas.

What is Nippon Sharyo, Ltd.'s Innovation Score?

Nippon Sharyo, Ltd. has an Innovation Score of 31.3 out of 100 (37th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nippon Sharyo, Ltd. focus on?

Nippon Sharyo, Ltd.'s top technology area is B61D (Body Details OR Kinds OF Railway Vehicles) with 12 patents, ranking #13 of 155 assignees active in that subclass. Grants appear in 20 CPC subclasses total.

Is Nippon Sharyo, Ltd.'s patent grant rate increasing or decreasing?

Nippon Sharyo, Ltd.'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 Nippon Sharyo, Ltd.'s patents?

Nippon Sharyo, Ltd.'s patents average 4.8 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 Nippon Sharyo, 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

Nippon Sharyo, Ltd.

USPTO PatentsView assignee record - 37 granted patents across 20 technology areas, recorded in grant years 2015–2025. 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: B61D (Body Details OR Kinds OF Railway Vehicles).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Nippon ranks #8,651 of 49,997 tracked US assignees by granted-patent volume, with 37 patents across 20 technology areas.

#8,651
of 49,997 US assignees by volume: 37th percentile
by Innovation Score (31.3/100): 4.8
avg claims per patent: -97%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8651 · Foreign Corporation #8,651 · 37 grants

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

GRANTS-SMALL 37 grants
UPPER-Q #8,651/49,997
PHOTO-FINISH Montana State…
CPC-FOCUS B61D · 20 areas
INNOV-THIN 31.3/100
CLAIMS-SPARSE 4.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -97% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Montana State University (±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 Nippon’s 31.3 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 12.6 pts (40%) Velocity 0.0 pts (0%) Breadth 15.8 pts (50%) Claim depth 2.9 pts (9%)

Qualcomm Incorporated · highest

85
Crucialtec · near

31
IonSense · near

31
Mallinckrodt Pharma… · near

31
Nippon Sharyo · this assignee

31
Tintri by DDN · near

31
3D Lighting… · lowest

7

What this shows Nippon's Innovation Score is 31.3/100 (37th 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 Nippon?

Each dot is one of Nippon’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). Nippon’s own 4.8 claims/patent is at or below the 15.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Nippon's grants concentrate

Nippon Sharyo, Ltd. is a focused PatentsView assignee: 20 CPC subclasses with 32.4% of grants classified under B61D (Body Details OR Kinds OF Railway Vehicles). Peak complete grant year is 2016 (19 grants) versus a trough of 1 in 2020. By volume, Nippon sits between Montana State University and Novan, Inc..

Montana State Uni…

37
Nakanishi

37
Netafim

37
Nexion S P A

37
Nippon Thermostat

37
Net Entertainment…

37
Neurowave Systems

37
Novan

37
Nippon Sharyo ◀

37

What this shows Nippon holds 37 patents at rank #8,648, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nippon

By rank, the assignees closest to #8,648 in granted patent volume.

Leaders in B61D (Body Details OR Kinds OF Railway Vehicles)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Nippon, neither rank-band nor same-CPC leaders (those blocks stay above). In B61D (Body Details OR Kinds OF Railway Vehicles), Nippon ranks #13 of 155 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (31 here).

Tintri by DDN, Inc. 31 IonSense, Inc. 31 Mallinckrodt Pharma IP Trading D.A.C. 31 Crucialtec Co. Ltd 31

Nippon's Innovation Score vs. every tracked assignee

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

31 37th percentile higher than 37% 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 · 2015–2025

Grants by year

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

View data table

Nippon Sharyo, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	13.5%
2016	19	51.4%
2017	2	5.4%
2018	3	8.1%
2019	6	16.2%
2020	1	2.7%
2025partial year	1	2.7%

Which technologies does Nippon Sharyo, Ltd. patent most?

B61D - Body Details OR Kinds OF Railway Vehicles 12

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 11

Y02T - Climate Change Mitigation Technologies Related TO Transportation 6

E05D - Hinges OR Suspension Devices FOR Doors, Windows OR Wings 3

B60P - Vehicles Adapted FOR Load Transportation OR TO Transport, TO Carry, OR TO Comprise Special Loads OR Objects 2

E05Y - Indexing Scheme Associated With Subclasses E05d AND E05f, Relating TO Construction Elements, Electric Control, Power Supply, Power Signal OR Transmission, User Interfaces, Mounting OR Coupling, Details, Accessories, Auxiliary Operations NOT Otherwise Provided FOR, Application Thereof 2

B61C - LOCOMOTIVES; Motor Railcars 2

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 1

A47B - TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture 1

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 1

B66D - CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists 1

B61G - COUPLINGS; Draught AND Buffing Appliances 1

E05F - Devices FOR Moving Wings Into Open OR Closed POSITION; Checks FOR WINGS; Wing Fittings NOT Otherwise Provided FOR, Concerned With THE Functioning OF THE Wing 1

Y10T - Technical Subjects Covered BY Former US Classification 1

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 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

Nippon Sharyo, Ltd.'s patent record in context - here's where to go next.

Nippon Sharyo, Ltd.'s lead technology class is B61D (Body Details OR Kinds OF Railway Vehicles), 32.4% of its portfolio - see every assignee active in that class. Explore B61D
Ranked #8,651 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nippon Sharyo, Ltd. against Montana State University, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.3/100 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.