USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Xiamen Leedarson Lighting Co., Ltd

USPTO PatentsView assignee record - 105 granted patents across 28 technology areas, active 2018–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. 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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

105

Total patents granted

CPC technology areas

17.9

Avg claims per patent

+3300%

5-year filing velocity

The verdict

Xiamen holds 105 US patents across 28 technology areas, rank #3,520 of 50,000 tracked assignees.

#3,520
of 50,000 US assignees by volume: Top 2%
by Innovation Score (62.5/100): 17.9
avg claims per patent: +3300%
filing velocity, last 5 yrs

Portfolio overview

Xiamen Leedarson Lighting Co., Ltd has been granted 105 US utility patents between 2018 and 2025, placing Xiamen Leedarson Lighting Co., Ltd at rank #3,520 across all assignees tracked by PlainPatent. This portfolio spans 28 distinct Cooperative Patent Classification (CPC) subclasses, averaging 17.9 claims per patent with primary concentration in F21V (FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR). As a Foreign Corporation, Xiamen Leedarson Lighting Co., Ltd is one of the more focused assignees in the PatentsView dataset. By volume, Xiamen sits between University Of Maryland (105 patents, rank #3,516) and Aptar Radolfzell Gmbh (104 patents, rank #3,524) - the closest US assignees by grant volume. The composite Innovation Score of 62.5/100 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 102 grants, compared with 3 in the 2015–2019 window, a +3300% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Xiamen Leedarson Lighting Co., Ltd's 17.9 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 28 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Xiamen Leedarson Lighting Co., Ltd against peers pursuing similar technology classes.

University of Mar…

105
Varex Imaging

105
Valencell

105
Versitech

105
Zhejiang Orient G…

105
Xiamen Leedarson… ◀

105
ADC Telecommunica…

104
Apparatus

104
Aptar Radolfzell

104

What this shows Xiamen holds 105 patents at rank #3,520, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Xiamen

By rank, the assignees closest to #3,520 in granted patent volume.

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

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

Xiamen's Innovation Score vs. every tracked assignee

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

62 Top 2% higher than 98% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Xiamen Leedarson Lighting Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	2	1.9%
2019	1	1.0%
2021	27	25.7%
2022	38	36.2%
2023	24	22.9%
2024	9	8.6%
2025	4	3.8%

Which technologies does Xiamen Leedarson Lighting Co., Ltd 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 83

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 81

F21S - NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS 51

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 35

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 33

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 18

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 8

H01Q - ANTENNAS, i.e. RADIO AERIALS 5

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 4

F21W - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS 4

H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 3

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 3

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 3

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 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 2

Top 15 of 28 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#3,520

Across all tracked assignees

Innovation Score

62.5 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 Xiamen Leedarson Lighting Co., Ltd hold?

Xiamen Leedarson Lighting Co., Ltd holds 105 US granted patents filed between 2018 and 2025, spanning 28 technology areas.

What is Xiamen Leedarson Lighting Co., Ltd's Innovation Score?

Xiamen Leedarson Lighting Co., Ltd has an Innovation Score of 62.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Xiamen Leedarson Lighting Co., Ltd focus on?

Xiamen Leedarson Lighting Co., Ltd'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 83 patents. The company has filed patents in 28 CPC subclasses total.

Is Xiamen Leedarson Lighting Co., Ltd's patent filing rate increasing or decreasing?

Xiamen Leedarson Lighting Co., Ltd's recent filing velocity is +3300% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Xiamen Leedarson Lighting Co., Ltd's patents?

Xiamen Leedarson Lighting Co., Ltd's patents average 17.9 claims each. This falls within the standard range, providing solid legal coverage.

How is the Xiamen Leedarson Lighting Co., 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

Xiamen's 105 grants land it in the top 2% 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 - Xiamen ranks #3,520 of 50,000. Top 50 holders
Most of this portfolio concentrates in F21V - see who else leads that technology area. F21V 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.