Where does L.B. Foster Company rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), L.B. Foster Company ranks #16,156 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 Company hold?

L.B. Foster Company holds 18 US utility patents granted between 2015 and 2024, spanning 7 technology areas.

What is L.B. Foster Company's Innovation Score?

L.B. Foster Company has an Innovation Score of 32.3 out of 100 (41st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is L.B. Foster Company's patent grant rate increasing or decreasing?

L.B. Foster Company's recent grant velocity is -36% 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 Company's patents?

L.B. Foster Company's patents average 10.2 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 L.B. Foster Company 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 Company

Q: What technology areas does L.B. Foster Company focus on?

L.B. Foster Company's top technology area is E01B (Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds) with 9 patents. Grants appear in 7 CPC subclasses total.

USPTO PatentsView assignee record - 18 granted patents across 7 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: E01B (Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, L.b. ranks #16,156 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 7 technology areas.

#16,156
of 49,997 US assignees by volume: 41st percentile
by Innovation Score (32.3/100): 10.2
avg claims per patent: -36%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16156 · US Corporation #16,156 · 18 grants

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

GRANTS-MICRO 18 grants
MID-PACK #16,156/49,997
PHOTO-FINISH Kolor Magnetic…
CPC-NARROW E01B · 7 areas
INNOV-THIN 32.3/100
CLAIMS-PAR 10.2 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -36% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kolor Magnetic (Shenzhen) Co., 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.

Qualcomm Incorporated · highest

85
L B Foster · this assignee

32
3D Lighting… · lowest

7

What this shows L.b.'s Innovation Score is 32.3/100 (41st 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.

Where L.b.'s grants concentrate

L.B. Foster Company is a focused PatentsView assignee: 7 CPC subclasses with 50% of grants classified under E01B (Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds). Peak complete grant year is 2015 (3 grants) versus a trough of 1 in 2017. By volume, L.b. sits between Kolor Magnetic (Shenzhen) Co., Ltd. and Leavitt Medical, Inc..

L.b.'s three-year grant acceleration

L.B. Foster Company shows 4 grants in 2022–2024 against only 4 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.

Kolor Magnetic (S…

18
Konecranes

18
Kraton Chemical

18
L-3 Communication…

18
L I F E

18
Landos Biopharma

18
LAS Vegas Sands

18
Leavitt Medical

18
L B Foster ◀

18

What this shows L.B. holds 18 patents at rank #16,149, 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 #16,149 in granted patent volume.

Leaders in E01B (Permanent WAY)

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)

32 41st percentile higher than 41% 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 Company patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	16.7%
2016	3	16.7%
2017	1	5.6%
2018	3	16.7%
2019	1	5.6%
2020	3	16.7%
2023	2	11.1%
2024	2	11.1%

Which technologies does L.B. Foster Company patent most?

E01B - Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds 9

B60M - Power Supply Lines, AND Devices Along Rails, FOR Electrically- Propelled Vehicles 2

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

B05B - Spraying APPARATUS; Atomising APPARATUS; Nozzles 1

B61C - LOCOMOTIVES; Motor Railcars 1

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

Top 7 of 7 technology areas

Where it ranks

Overall rank by patents

#16,156

of 49,997 tracked assignees

Innovation Score

32.3 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

L.B. Foster Company's patent record in context - here's where to go next.

L.B. Foster Company's lead technology class is E01B (Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds), 50% of its portfolio - see every assignee active in that class. Explore E01B
Ranked #16,156 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare L.B. Foster Company against Kolor Magnetic (Shenzhen) Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 32.3/100 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.