Where does Lewmar Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Lewmar Limited ranks #32,334 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 Lewmar Limited hold?

Lewmar Limited holds 8 US utility patents granted between 2015 and 2021, spanning 7 technology areas.

What is Lewmar Limited's Innovation Score?

Lewmar Limited has an Innovation Score of 27.0 out of 100 (22nd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Lewmar Limited focus on?

Lewmar Limited's top technology area is B66D (CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists) with 4 patents, ranking #29 of 199 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

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

Lewmar Limited's recent grant velocity is -40% 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 Lewmar Limited's patents?

Lewmar Limited's patents average 16.8 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 Lewmar 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

Lewmar Limited

USPTO PatentsView assignee record - 8 granted patents across 7 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: B66D (CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Lewmar ranks #32,334 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 7 technology areas.

#32,334
of 49,997 US assignees by volume: 22nd percentile
by Innovation Score (27.0/100): 16.8
avg claims per patent: -40%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R32334 · Foreign Corporation #32,334 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #32,334/49,997
PHOTO-FINISH Leonardo US
CPC-NARROW B66D · 7 areas
INNOV-THIN 27.0/100
CLAIMS-RICH 16.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -40% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Leonardo Electronics US Inc. (±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 Lewmar’s 27.0 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 7.6 pts (28%) Velocity 0.0 pts (0%) Breadth 9.4 pts (35%) Claim depth 10.1 pts (37%)

Qualcomm Incorporated · highest

85
Lewmar · this assignee

27
3D Lighting… · lowest

7

What this shows Lewmar's Innovation Score is 27.0/100 (22nd 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 Lewmar?

Each dot is one of Lewmar’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). Lewmar’s own 16.8 claims/patent is ABOVE the 13.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Lewmar's grants concentrate

Lewmar Limited is a focused PatentsView assignee: 7 CPC subclasses with 50% of grants classified under B66D (CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists). Peak complete grant year is 2018 (3 grants) versus a trough of 1 in 2015. By volume, Lewmar sits between Leonardo Electronics US Inc. and Limited Liability Company “BIOENERGY”.

Leonardo US

8
Leotek

8
Lerain Technology

8
LES HÔPitaux Univ…

8
Lexvu Opto Microe…

8
LI Hsen Plastics

8
Lifoam Industries

8
Liability “Bioene…

8
Lewmar ◀

8

What this shows Lewmar holds 8 patents at rank #32,306, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Lewmar

By rank, the assignees closest to #32,306 in granted patent volume.

Leaders in B66D (Capstans)

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

Lewmar's Innovation Score vs. every tracked assignee

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

27 22nd percentile higher than 22% 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

Lewmar Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	12.5%
2018	3	37.5%
2019	1	12.5%
2020	1	12.5%
2021	2	25.0%

Which technologies does Lewmar Limited patent most?

B66D - CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists 4

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 4

B63H - Marine Propulsion OR Steering 2

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 1

B60J - Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles 1

F16H - Gearing 1

B66B - ELEVATORS; Escalators OR Moving Walkways 1

Top 7 of 7 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

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

Lewmar Limited's lead technology class is B66D (CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists), 50% of its portfolio - see every assignee active in that class. Explore B66D
Ranked #32,334 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Lewmar Limited against Leonardo Electronics US Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 27.0/100 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.