Where does Westport Power Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Westport Power Inc. ranks #4,499 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 Westport Power Inc. hold?

Westport Power Inc. holds 79 US utility patents granted between 2015 and 2021, spanning 39 technology areas.

What is Westport Power Inc.'s Innovation Score?

Westport Power Inc. has an Innovation Score of 50.0 out of 100 (top 14% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Westport Power Inc. focus on?

Westport Power Inc.'s top technology area is Y02T (Climate Change Mitigation Technologies Related TO Transportation) with 64 patents, ranking #135 of 2,877 assignees active in that subclass. Grants appear in 39 CPC subclasses total.

Is Westport Power Inc.'s patent grant rate increasing or decreasing?

Westport Power Inc.'s recent grant velocity is -78% 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 Westport Power Inc.'s patents?

Westport Power Inc.'s patents average 21.3 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 Westport Power 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 Foreign Corporation

Westport Power Inc.

USPTO PatentsView assignee record - 79 granted patents across 39 technology areas, recorded in grant years 2015–2021. 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: Y02T (Climate Change Mitigation Technologies Related TO Transportation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Westport ranks #4,499 of 49,997 tracked US assignees by granted-patent volume, with 79 patents across 39 technology areas.

#4,499
of 49,997 US assignees by volume: Top 14%
by Innovation Score (50.0/100): 21.3
avg claims per patent: -78%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R4499 · Foreign Corporation #4,499 · 79 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-DENSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 79 grants
TOP-DECILE #4,499/49,997
PHOTO-FINISH UnitedHealth Group…
CPC-FOCUS Y02T · 39 areas
INNOV-PAR 50.0/100
CLAIMS-DENSE 21.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -78% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: UnitedHealth Group Incorporated (±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 Westport’s 50.0 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 15.1 pts (30%) Velocity 0.0 pts (0%) Breadth 22.1 pts (44%) Claim depth 12.8 pts (26%)

Qualcomm Incorporated · highest

85
Beijing Xiaomi… · near

50
I Peace · near

50
Ludwig-Maximilians-U… · near

50
NHN · near

50
Westport Power · this assignee

50
3D Lighting… · lowest

7

What this shows Westport's Innovation Score is 50.0/100 (top 14% 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 Westport?

Each dot is one of Westport’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). Westport’s own 21.3 claims/patent is ABOVE the 16.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Westport's grants concentrate

Westport Power Inc. is a focused PatentsView assignee: 39 CPC subclasses with 81% of grants classified under Y02T (Climate Change Mitigation Technologies Related TO Transportation). Peak complete grant year is 2019 (24 grants) versus a trough of 1 in 2021. By volume, Westport sits between University OF Hawaii and Aspen Aerogels, Inc..

University OF Haw…

79
Unitedhealth Grou…

79
Vitra Patente

79
Vitro Flat Glass

79
Zhejiang Universi…

79
Westport Power ◀

79
Alclear

78
Aselsan Elektroni…

78
Aspen Aerogels

78

What this shows Westport holds 79 patents at rank #4,499, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Westport

By rank, the assignees closest to #4,499 in granted patent volume.

Leaders in Y02T (Climate Change Mitigation Technologies Related TO Transpo…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Westport, neither rank-band nor same-CPC leaders (those blocks stay above). In Y02T (Climate Change Mitigation Technologies Related TO Transpo…), Westport ranks #135 of 2,877 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (50 here).

NHN Corporation 50 Ludwig-Maximilians-Universitat Munchen 50 I Peace, Inc. 50 Beijing Xiaomi Mobile Software Co., Ltd. Nanjing Branch 50

Similar claim depth

Nearest assignees by average claims per patent (21.3 here).

Lord Corporation 21.3 avg AOl 21.3 avg STMicroelectronics Asia Pacific Pte Ltd 21.3 avg Biedermann Technologies GMBH & Co. KG 21.3 avg

Westport's Innovation Score vs. every tracked assignee

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

50 Top 14% higher than 86% 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 · 2015–2021

Grants by year

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

View data table

Westport Power Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	7.6%
2016	8	10.1%
2017	14	17.7%
2018	13	16.5%
2019	24	30.4%
2020	13	16.5%
2021	1	1.3%

Which technologies does Westport Power Inc. patent most?

Y02T - Climate Change Mitigation Technologies Related TO Transportation 64

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 49

F02D - Controlling Combustion Engines 48

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 17

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 14

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 10

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 6

Y10T - Technical Subjects Covered BY Former US Classification 6

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 5

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 4

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 4

F02P - Ignition, Other Than Compression Ignition, FOR Internal-combustion ENGINES; Testing OF Ignition Timing IN Compression-ignition Engines 4

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 3

B60Y - Indexing Scheme Relating TO Aspects Cross-cutting Vehicle Technology 3

Top 15 of 39 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

Westport Power Inc.'s patent record in context - here's where to go next.

Westport Power Inc.'s lead technology class is Y02T (Climate Change Mitigation Technologies Related TO Transportation), 81% of its portfolio - see every assignee active in that class. Explore Y02T
Ranked #4,499 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Westport Power Inc. against University OF Hawaii, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 50.0/100 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.