Where does Hitachi Rail STS USA, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi Rail STS USA, Inc. ranks #47,442 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 Hitachi Rail STS USA, Inc. hold?

Hitachi Rail STS USA, Inc. holds 5 US utility patents granted between 2019 and 2025, spanning 4 technology areas.

What is Hitachi Rail STS USA, Inc.'s Innovation Score?

Hitachi Rail STS USA, Inc. has an Innovation Score of 24.0 out of 100 (13th 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 Hitachi Rail STS USA, Inc. focus on?

Hitachi Rail STS USA, Inc.'s top technology area is B61L (Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic) with 5 patents, ranking #60 of 195 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

Is Hitachi Rail STS USA, Inc.'s patent grant rate increasing or decreasing?

Hitachi Rail STS USA, Inc.'s recent grant velocity is +200% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Hitachi Rail STS USA, Inc.'s patents?

Hitachi Rail STS USA, Inc.'s patents average 14.2 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 Hitachi Rail STS USA, Inc. 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 US Corporation

Hitachi Rail STS USA, Inc.

USPTO PatentsView assignee record - 5 granted patents across 4 technology areas, recorded in grant years 2019–2025. 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: B61L (Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hitachi ranks #47,442 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 4 technology areas.

#47,442
of 49,997 US assignees by volume: 13th percentile
by Innovation Score (24.0/100): 14.2
avg claims per patent: +200%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R47442 · US Corporation #47,442 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #47,442/49,997
PHOTO-FINISH HIT BOX L L C
CPC-NARROW B61L · 4 areas
INNOV-THIN 24.0/100
CLAIMS-RICH 14.2 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +200% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: HIT BOX, L.L.C. (±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 Hitachi’s 24.0 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 6.2 pts (26%) Velocity 2.2 pts (9%) Breadth 7.1 pts (30%) Claim depth 8.5 pts (35%)

Qualcomm Incorporated · highest

85
Hitachi Rail STS USA · this assignee

24
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 24.0/100 (13th 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 Hitachi?

Each dot is one of Hitachi’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). Hitachi’s own 14.2 claims/patent is at or below the 14.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Hitachi's grants concentrate

Hitachi Rail STS USA, Inc. is a focused PatentsView assignee: 4 CPC subclasses with 100% of grants classified under B61L (Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2019. By volume, Hitachi sits between HIT BOX, L.L.C. and HM Health Solutions, Inc..

Hitachi's three-year grant acceleration

Hitachi Rail STS USA, Inc. shows 1 grants in 2022–2024 against only 3 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.

HIT BOX L L C

5
Hitachi Chemical…

5
Hitachi Metals Am…

5
Hitachi Plant Ser…

5
HJS Emission Tech…

5
HKD Global

5
HL Display AB

5
HM Health Solutio…

5
Hitachi Rail STS… ◀

5

What this shows Hitachi holds 5 patents at rank #47,370, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hitachi

By rank, the assignees closest to #47,370 in granted patent volume.

Leaders in B61L (Guiding Railway Traffic)

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

Hitachi's Innovation Score vs. every tracked assignee

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

24 13th percentile higher than 13% 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 · 2019–2025

Grants by year

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

View data table

Hitachi Rail STS USA, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	20.0%
2021	2	40.0%
2022	1	20.0%
2025partial year	1	20.0%

Which technologies does Hitachi Rail STS USA, Inc. patent most?

B61L - Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic 5

G06F - Electric Digital Data Processing 1

G06N - Computing Arrangements Based ON Specific Computational Models 1

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 1

Top 4 of 4 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

Hitachi Rail STS USA, Inc.'s patent record in context - here's where to go next.

Hitachi Rail STS USA, Inc.'s lead technology class is B61L (Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic), 100% of its portfolio - see every assignee active in that class. Explore B61L
Ranked #47,442 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi Rail STS USA, Inc. against HIT BOX, L.L.C., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 24.0/100 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.