Where does L.B. Foster Rail Technologies, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), L.B. Foster Rail Technologies, Inc. ranks #21,371 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 L.B. Foster Rail Technologies, Inc. hold?

L.B. Foster Rail Technologies, Inc. holds 13 US utility patents granted between 2015 and 2024, spanning 8 technology areas.

What is L.B. Foster Rail Technologies, Inc.'s Innovation Score?

L.B. Foster Rail Technologies, Inc. has an Innovation Score of 34.7 out of 100 (49th 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 L.B. Foster Rail Technologies, Inc. focus on?

L.B. Foster Rail Technologies, Inc.'s top technology area is B61K (Auxiliary Equipment Specially Adapted FOR Railways, NOT Otherwise Provided FOR) with 10 patents, ranking #5 of 75 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

Is L.B. Foster Rail Technologies, Inc.'s patent grant rate increasing or decreasing?

L.B. Foster Rail Technologies, Inc.'s recent grant velocity is -56% 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 L.B. Foster Rail Technologies, Inc.'s patents?

L.B. Foster Rail Technologies, Inc.'s patents average 14.9 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 L.B. Foster Rail Technologies, 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

L.B. Foster Rail Technologies, Inc.

USPTO PatentsView assignee record - 13 granted patents across 8 technology areas, recorded in grant years 2015–2024. 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: B61K (Auxiliary Equipment Specially Adapted FOR Railways, NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, L.b. ranks #21,371 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 8 technology areas.

#21,371
of 49,997 US assignees by volume: 49th percentile
by Innovation Score (34.7/100): 14.9
avg claims per patent: -56%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21371 · US Corporation #21,371 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 13 grants
MID-PACK #21,371/49,997
PHOTO-FINISH Kornit Digital
CPC-NARROW B61K · 8 areas
INNOV-THIN 34.7/100
CLAIMS-RICH 14.9 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -56% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kornit Digital Technologies 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 L.b.’s 34.7 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 9.1 pts (26%) Velocity 6.7 pts (19%) Breadth 10.0 pts (29%) Claim depth 9.0 pts (26%)

Qualcomm Incorporated · highest

85
L B Foster Rail · this assignee

35
3D Lighting… · lowest

7

What this shows L.b.'s Innovation Score is 34.7/100 (49th 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 L.b.?

Each dot is one of L.b.’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). L.b.’s own 14.9 claims/patent is ABOVE the 14.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where L.b.'s grants concentrate

L.B. Foster Rail Technologies, Inc. is a focused PatentsView assignee: 8 CPC subclasses with 76.9% of grants classified under B61K (Auxiliary Equipment Specially Adapted FOR Railways, NOT Otherwise Provided FOR). Peak complete grant year is 2015 (3 grants) versus a trough of 1 in 2017. By volume, L.b. sits between Kornit Digital Technologies Ltd. and Larq, Inc..

L.b.'s three-year grant acceleration

L.B. Foster Rail Technologies, Inc. shows 3 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.

Kornit Digital

13
Korsch

13
Kuhn-geldrop B V

13
L&K Biomed

13
LA Trobe Universi…

13
LAB Society

13
Lakeview Innovati…

13
Larq

13
L B Foster Rail ◀

13

What this shows L.B. holds 13 patents at rank #21,359, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near LB

By rank, the assignees closest to #21,359 in granted patent volume.

Leaders in B61K (Auxiliary Equipment Specially Adapted FOR Railways)

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

L.b.'s Innovation Score vs. every tracked assignee

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

35 49th percentile higher than 49% 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 · 2015–2024

Grants by year

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

View data table

L.B. Foster Rail Technologies, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	23.1%
2016	2	15.4%
2017	1	7.7%
2018	1	7.7%
2019	2	15.4%
2021	1	7.7%
2022	2	15.4%
2024	1	7.7%

Which technologies does L.B. Foster Rail Technologies, Inc. patent most?

B61K - Auxiliary Equipment Specially Adapted FOR Railways, NOT Otherwise Provided FOR 10

E01B - Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds 5

G01L - Measuring Force, Stress, Torque, Work, Mechanical Power, Mechanical Efficiency, OR Fluid Pressure 2

B61L - Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic 1

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

B61C - LOCOMOTIVES; Motor Railcars 1

B61D - Body Details OR Kinds OF Railway Vehicles 1

Y10T - Technical Subjects Covered BY Former US Classification 1

Top 8 of 8 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

L.B. Foster Rail Technologies, Inc.'s patent record in context - here's where to go next.

L.B. Foster Rail Technologies, Inc.'s lead technology class is B61K (Auxiliary Equipment Specially Adapted FOR Railways, NOT Otherwise Provided FOR), 76.9% of its portfolio - see every assignee active in that class. Explore B61K
Ranked #21,371 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare L.B. Foster Rail Technologies, Inc. against Kornit Digital Technologies Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 34.7/100 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.