USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Alstom Technology Ltd

USPTO PatentsView assignee record - 352 granted patents across 136 technology areas, active 2015–2021. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

352

Total patents granted

136

CPC technology areas

13.7

Avg claims per patent

-100%

5-year filing velocity

The verdict

Alstom holds 352 US patents across 136 technology areas, rank #1,202 of 50,000 tracked assignees.

#1,202
of 50,000 US assignees by volume: Top 9%
by Innovation Score (53.5/100): 13.7
avg claims per patent: -100%
filing velocity, last 5 yrs

Portfolio overview

Alstom Technology Ltd has been granted 352 US utility patents between 2015 and 2021, placing Alstom Technology Ltd at rank #1,202 across all assignees tracked by PlainPatent. This portfolio spans 136 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.7 claims per patent with primary concentration in Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION). As a Foreign Corporation, Alstom Technology Ltd is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Alstom sits between Headway Technologies, Inc. (354 patents, rank #1,198) and Biedermann Technologies Gmbh & Co. KG (351 patents, rank #1,206) - the closest US assignees by grant volume. The composite Innovation Score of 53.5/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 1 grants, compared with 351 in the 2015–2019 window, a -100% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Alstom Technology Ltd's 13.7 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Alstom Technology Ltd against peers pursuing similar technology classes.

Headway

354
Hunter Douglas

354
AIR Products AND…

353
Applied Materials…

353
Knowles

352
Praxair Technology

352
Seiko Instruments

352
Alstom Technology ◀

352
Biedermann & KG

351

What this shows Alstom holds 352 patents at rank #1,202, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Alstom

By rank, the assignees closest to #1,202 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Alstom's Innovation Score vs. every tracked assignee

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

53 Top 9% higher than 91% of 50,000 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 · 2015–2021

Grants by year

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

View data table

Alstom Technology Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	179	50.9%
2016	126	35.8%
2017	30	8.5%
2018	11	3.1%
2019	5	1.4%
2021	1	0.3%

Which technologies does Alstom Technology Ltd patent most?

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 71

F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 65

F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS 64

B01D - SEPARATION 53

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 45

F02C - GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 44

F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS 36

H01H - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 30

H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 30

H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 28

F01K - STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES 27

F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN ; A CARRIER GAS OR; AIR 21

G01R - MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 20

F23D - BURNERS 20

Y02C - CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG] 19

Top 15 of 136 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#1,202

Across all tracked assignees

Innovation Score

53.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Alstom Technology Ltd hold?

Alstom Technology Ltd holds 352 US granted patents filed between 2015 and 2021, spanning 136 technology areas.

What is Alstom Technology Ltd's Innovation Score?

Alstom Technology Ltd has an Innovation Score of 53.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Alstom Technology Ltd focus on?

Alstom Technology Ltd's top technology area is Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION) with 71 patents. The company has filed patents in 136 CPC subclasses total.

Is Alstom Technology Ltd's patent filing rate increasing or decreasing?

Alstom Technology Ltd's recent filing velocity is -100% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Alstom Technology Ltd's patents?

Alstom Technology Ltd's patents average 13.7 claims each. This falls within the standard range, providing solid legal coverage.

How is the Alstom Technology 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.

How to use this portfolio

Alstom's 352 grants land it in the top 9% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Alstom ranks #1,202 of 50,000. Top 50 holders
Most of this portfolio concentrates in Y02E - see who else leads that technology area. Y02E leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.