Where does Ledup Manufacturing Group Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ledup Manufacturing Group Limited ranks #22,893 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 Ledup Manufacturing Group Limited hold?

Ledup Manufacturing Group Limited holds 12 US utility patents granted between 2021 and 2025, spanning 16 technology areas.

What is Ledup Manufacturing Group Limited's Innovation Score?

Ledup Manufacturing Group Limited has an Innovation Score of 49.6 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%).

Is Ledup Manufacturing Group Limited's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Ledup Manufacturing Group Limited.

What does claim depth mean for Ledup Manufacturing Group Limited's patents?

Ledup Manufacturing Group Limited's patents average 11.0 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 Ledup Manufacturing Group 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 US Corporation

Ledup Manufacturing Group Limited

Q: What technology areas does Ledup Manufacturing Group Limited focus on?

Ledup Manufacturing Group Limited's top technology area is F21V (Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR) with 8 patents, ranking #333 of 1,842 assignees active in that subclass. Grants appear in 16 CPC subclasses total.

USPTO PatentsView assignee record - 12 granted patents across 16 technology areas, recorded in grant years 2021–2025. 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: F21V (Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Ledup ranks #22,893 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 16 technology areas.

#22,893
of 49,997 US assignees by volume: Top 14%
by Innovation Score (49.6/100): 11.0
avg claims per patent

USPTO PatentsView assignee plate

Corpus R22893 · US Corporation #22,893 · 12 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-USCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 12 grants
MID-PACK #22,893/49,997
PHOTO-FINISH Lacebark
CPC-FOCUS F21V · 16 areas
INNOV-PAR 49.6/100
CLAIMS-PAR 11.0 claims/avg
TYPE-USCORP US Corporation
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Lacebark, 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 Ledup’s 49.6 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 8.9 pts (18%) Velocity 20.0 pts (40%) Breadth 14.1 pts (28%) Claim depth 6.6 pts (13%)

Qualcomm Incorporated · highest

85
Ledup Manufacturing… · this assignee

50
3D Lighting… · lowest

7

What this shows Ledup's Innovation Score is 49.6/100 (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 Ledup?

Each dot is one of Ledup’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). Ledup’s own 11.0 claims/patent is at or below the 14.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Ledup's grants concentrate

Ledup Manufacturing Group Limited is a focused PatentsView assignee: 16 CPC subclasses with 66.7% of grants classified under F21V (Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR). Peak complete grant year is 2022 (5 grants) versus a trough of 1 in 2023. By volume, Ledup sits between Lacebark, Inc. and Light Corp Inc..

Ledup's three-year grant acceleration

Ledup Manufacturing Group Limited shows 8 grants in 2022–2024 against only 2 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Lacebark

12
Lake Country Tool

12
Lalabu

12
Lancaster Univers…

12
Lenbrook Industri…

12
Lennham Pharmaceu…

12
Lifeline Systems

12
Light

12
Ledup Manufacturi… ◀

12

What this shows Ledup holds 12 patents at rank #22,904, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ledup

By rank, the assignees closest to #22,904 in granted patent volume.

Leaders in F21V (Functional Features OR Details OF Lighting Devices OR Sys…)

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

Ledup'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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Ledup Manufacturing Group Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	2	16.7%
2022	5	41.7%
2023	1	8.3%
2024	2	16.7%
2025partial year	2	16.7%

Which technologies does Ledup Manufacturing Group Limited patent most?

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 8

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 7

F21W - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems 7

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 7

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 6

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 5

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 4

F21K - Non-electric Light Sources Using LUMINESCENCE; Light Sources Using ELECTROCHEMILUMINESCENCE; Light Sources Using Charges OF Combustible MATERIAL; Light Sources Using Semiconductor Devices AS Light-generating ELEMENTS; Light Sources NOT Otherwise Provided FOR 3

H01L - Semiconductor Devices NOT Covered BY Class H10 3

A47G - Household OR Table Equipment 2

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 1

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 1

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 1

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 1

Top 15 of 16 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

Ledup Manufacturing Group Limited's patent record in context - here's where to go next.

Ledup Manufacturing Group Limited's lead technology class is F21V (Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR), 66.7% of its portfolio - see every assignee active in that class. Explore F21V
Ranked #22,893 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ledup Manufacturing Group Limited against Lacebark, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.6/100 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.