Where does Sevcon Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sevcon Limited ranks #18,091 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 Sevcon Limited hold?

Sevcon Limited holds 16 US utility patents granted between 2016 and 2021, spanning 11 technology areas.

What is Sevcon Limited's Innovation Score?

Sevcon Limited has an Innovation Score of 29.9 out of 100 (33rd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Sevcon Limited's patent grant rate increasing or decreasing?

Sevcon Limited's recent grant velocity is -22% 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 Sevcon Limited's patents?

Sevcon Limited's patents average 14.1 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 Sevcon Limited 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

Sevcon Limited

Q: What technology areas does Sevcon Limited focus on?

Sevcon Limited's top technology area is H02P (Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils) with 7 patents, ranking #173 of 960 assignees active in that subclass. Grants appear in 11 CPC subclasses total.

USPTO PatentsView assignee record - 16 granted patents across 11 technology areas, recorded in grant years 2016–2021. 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: H02P (Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sevcon ranks #18,091 of 49,997 tracked US assignees by granted-patent volume, with 16 patents across 11 technology areas.

#18,091
of 49,997 US assignees by volume: 33rd percentile
by Innovation Score (29.9/100): 14.1
avg claims per patent: -22%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R18091 · Foreign Corporation #18,091 · 16 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 16 grants
MID-PACK #18,091/49,997
PHOTO-FINISH Seahorse Equipment
CPC-FOCUS H02P · 11 areas
INNOV-THIN 29.9/100
CLAIMS-RICH 14.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -22% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Seahorse Equipment Corp. (±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 Sevcon’s 29.9 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 9.8 pts (33%) Velocity 0.0 pts (0%) Breadth 11.7 pts (39%) Claim depth 8.4 pts (28%)

Qualcomm Incorporated · highest

85
Sevcon · this assignee

30
3D Lighting… · lowest

7

What this shows Sevcon's Innovation Score is 29.9/100 (33rd 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 Sevcon?

Each dot is one of Sevcon’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). Sevcon’s own 14.1 claims/patent is at or below the 16.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sevcon's grants concentrate

Sevcon Limited is a focused PatentsView assignee: 11 CPC subclasses with 43.8% of grants classified under H02P (Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils). Peak complete grant year is 2021 (4 grants) versus a trough of 1 in 2016. By volume, Sevcon sits between Seahorse Equipment Corp. and Shenzhen Cuco Smart Technology Co., Ltd.

Seahorse Equipment

16
Seakr Engineering

16
Segan Industries

16
Sensity Systems

16
Shaoxing Yuanfang…

16
Shelby Group Inte…

16
Shenzhen Amazwear…

16
Shenzhen Cuco Sma…

16
Sevcon ◀

16

What this shows Sevcon holds 16 patents at rank #18,127, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sevcon

By rank, the assignees closest to #18,127 in granted patent volume.

Leaders in H02P (Control OR Regulation OF Electric Motors)

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

Sevcon's Innovation Score vs. every tracked assignee

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

30 33rd percentile higher than 33% 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 · 2016–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Sevcon Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	6.3%
2017	3	18.8%
2018	3	18.8%
2019	2	12.5%
2020	3	18.8%
2021	4	25.0%

Which technologies does Sevcon Limited patent most?

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 7

Y02T - Climate Change Mitigation Technologies Related TO Transportation 7

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 6

H02K - Dynamo-electric Machines 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

B66F - Hoisting, Lifting, Hauling OR Pushing, NOT Otherwise Provided FOR, e.g. Devices Which Apply A Lifting OR Pushing Force Directly TO THE Surface OF A Load 2

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 2

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 2

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 1

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 1

B60Y - Indexing Scheme Relating TO Aspects Cross-cutting Vehicle Technology 1

Top 11 of 11 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

Sevcon Limited's patent record in context - here's where to go next.

Sevcon Limited's lead technology class is H02P (Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils), 43.8% of its portfolio - see every assignee active in that class. Explore H02P
Ranked #18,091 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sevcon Limited against Seahorse Equipment Corp., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.9/100 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.