Where does Amsted Rail Company, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Amsted Rail Company, Inc. ranks #3,616 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 Amsted Rail Company, Inc. hold?

Amsted Rail Company, Inc. holds 101 US utility patents granted between 2015 and 2025, spanning 65 technology areas.

What is Amsted Rail Company, Inc.'s Innovation Score?

Amsted Rail Company, Inc. has an Innovation Score of 60.3 out of 100 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Amsted Rail Company, Inc.'s patent grant rate increasing or decreasing?

Amsted Rail Company, Inc.'s recent grant velocity is +33% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Amsted Rail Company, Inc.'s patents?

Amsted Rail Company, Inc.'s patents average 21.0 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 Amsted Rail Company, 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

Amsted Rail Company, Inc.

Q: What technology areas does Amsted Rail Company, Inc. focus on?

Amsted Rail Company, Inc.'s top technology area is B61L (Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic) with 28 patents. Grants appear in 65 CPC subclasses total.

USPTO PatentsView assignee record - 101 granted patents across 65 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: B61L (Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Amsted ranks #3,616 of 49,997 tracked US assignees by granted-patent volume, with 101 patents across 65 technology areas.

#3,616
of 49,997 US assignees by volume: Top 3%
by Innovation Score (60.3/100): 21.0
avg claims per patent: +33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R3616 · US Corporation #3,616 · 101 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-DENSE · TYPE-USCORP · VEL-UP · BOOK-FULL

GRANTS-MID 101 grants
TOP-DECILE #3,616/49,997
PHOTO-FINISH Bentley Motors
CPC-WIDE B61L · 65 areas
INNOV-STRONG 60.3/100
CLAIMS-DENSE 21.0 claims/avg
TYPE-USCORP US Corporation
VEL-UP +33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Bentley Motors Limited (±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
Amsted Rail · this assignee

60
National Taiwan… · near

60
Philip Morris USA · near

60
Texas Tech Universit… · near

60
Westinghouse Electric · near

60
3D Lighting… · lowest

7

What this shows Amsted's Innovation Score is 60.3/100 (top 3% 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.

How Amsted's grant cadence moved

Between 2020–2024, Amsted Rail Company, Inc. received 52 grants versus 39 in 2015–2019 (+33% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2019 at 14 grants and bottomed in 2016 at 2. Lead class B61L accounts for 27.7% of the portfolio across 65 subclasses. Volume neighbours: VMI Holland B.V. (#3,612) and Chimei Corporation (#3,620).

Amsted's three-year grant acceleration

From 2019–2021 to 2022–2024, Amsted Rail Company, Inc. moved from 33 to 33 grants (1.00x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,174. See the growth leaderboard.

VMI Holland B V

102
Veolia Water Solu…

102
Woojin Plastic

102
Wabash National

102
Bentley Motors

101
Ceraloc Innovatio…

101
Chang Chun Petroc…

101
Chimei

101
Amsted Rail ◀

101

What this shows Amsted holds 101 patents at rank #3,616, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Amsted

By rank, the assignees closest to #3,616 in granted patent volume.

Leaders in B61L (Guiding Railway Traffic)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Amsted, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (60 here).

Texas Tech University System 60 National Taiwan University of Science and Technology 60 Philip Morris USA Inc. 60 Westinghouse Electric Company LLC 60

Similar claim depth

Nearest assignees by average claims per patent (21.0 here).

Valtech Cardio Ltd. 21.0 avg Brooks Automation GmbH 21.0 avg Iogen Corporation 21.0 avg Hypertherm, Inc. 21.0 avg

Amsted's Innovation Score vs. every tracked assignee

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

60 Top 3% higher than 97% 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

Amsted Rail Company, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	5.9%
2016	2	2.0%
2017	9	8.9%
2018	8	7.9%
2019	14	13.9%
2020	12	11.9%
2021	7	6.9%
2022	10	9.9%
2023	12	11.9%
2024	11	10.9%
2025partial year	10	9.9%

Which technologies does Amsted Rail Company, Inc. patent most?

B61L - Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic 28

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 28

B61H - Brakes OR Other Retarding Devices Specially Adapted FOR Rail VEHICLES; Arrangement OR Disposition Thereof IN Rail Vehicles 14

B61K - Auxiliary Equipment Specially Adapted FOR Railways, NOT Otherwise Provided FOR 13

B60T - Vehicle Brake Control Systems OR Parts THEREOF; Brake Control Systems OR Parts Thereof, IN General ; Arrangement OF Braking Elements ON Vehicles IN GENERAL; Portable Devices FOR Preventing Unwanted Movement OF VEHICLES; Vehicle Modifications TO Facilitate Cooling OF Brakes 13

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 12

B61G - COUPLINGS; Draught AND Buffing Appliances 10

F16J - Pistons ; CYLINDERS; Sealings 8

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 7

B22D - Casting OF METALS; Casting OF Other Substances BY THE Same Processes OR Devices 6

B61D - Body Details OR Kinds OF Railway Vehicles 6

G06N - Computing Arrangements Based ON Specific Computational Models 5

Y02T - Climate Change Mitigation Technologies Related TO Transportation 5

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 4

H04W - Wireless Communication Networks 4

Top 15 of 65 technology areas

Where it ranks

Overall rank by patents

#3,616

of 49,997 tracked assignees

Innovation Score

60.3 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

Amsted Rail Company, Inc.'s patent record in context - here's where to go next.

Amsted Rail Company, Inc.'s lead technology class is B61L (Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic), 27.7% of its portfolio - see every assignee active in that class. Explore B61L
Ranked #3,616 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Amsted Rail Company, Inc. against VMI Holland B.V., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 60.3/100 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.