Where does Dongguan Huihuan Lighting Co., Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dongguan Huihuan Lighting Co., Ltd ranks #8,370 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 Dongguan Huihuan Lighting Co., Ltd hold?

Dongguan Huihuan Lighting Co., Ltd holds 38 US utility patents granted between 2022 and 2025, spanning 6 technology areas.

What is Dongguan Huihuan Lighting Co., Ltd's Innovation Score?

Dongguan Huihuan Lighting Co., Ltd has an Innovation Score of 43.8 out of 100 (top 27% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Dongguan Huihuan Lighting Co., Ltd's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Dongguan Huihuan Lighting Co., Ltd.

What does claim depth mean for Dongguan Huihuan Lighting Co., Ltd's patents?

Dongguan Huihuan Lighting Co., Ltd's patents average 4.1 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 Dongguan Huihuan 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Dongguan Huihuan Lighting Co., Ltd

Q: What technology areas does Dongguan Huihuan Lighting Co., Ltd focus on?

Dongguan Huihuan Lighting Co., Ltd's top technology area is 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) with 16 patents, ranking #50 of 564 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 38 granted patents across 6 technology areas, recorded in grant years 2022–2025. 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: 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-gen).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Dongguan ranks #8,370 of 49,997 tracked US assignees by granted-patent volume, with 38 patents across 6 technology areas.

#8,370
of 49,997 US assignees by volume: Top 27%
by Innovation Score (43.8/100): 4.1
avg claims per patent

USPTO PatentsView assignee plate

Corpus R8370 · Foreign Corporation #8,370 · 38 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-SMALL 38 grants
UPPER-Q #8,370/49,997
PHOTO-FINISH Cruiser Accessories
CPC-NARROW F21K · 6 areas
INNOV-PAR 43.8/100
CLAIMS-SPARSE 4.1 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2022–2025 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Cruiser Accessories, LLC (±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 Dongguan’s 43.8 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 12.7 pts (29%) Velocity 20.0 pts (46%) Breadth 8.7 pts (20%) Claim depth 2.5 pts (6%)

Qualcomm Incorporated · highest

85
Aptima · near

44
Dongguan Huihuan… · this assignee

44
Siltectra · near

44
The Board of… · near

44
Xiamen Hongfa… · near

44
3D Lighting… · lowest

7

What this shows Dongguan's Innovation Score is 43.8/100 (top 27% 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 Dongguan?

Each dot is one of Dongguan’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). Dongguan’s own 4.1 claims/patent is at or below the 11.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Dongguan's grants concentrate

Dongguan Huihuan Lighting Co., Ltd is a focused PatentsView assignee: 6 CPC subclasses with 42.1% of grants classified under 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-gen). Peak complete grant year is 2024 (16 grants) versus a trough of 4 in 2022. By volume, Dongguan sits between Cruiser Accessories, LLC and DewertOkin GmbH.

Dongguan's three-year grant acceleration

Dongguan Huihuan Lighting Co., Ltd shows 35 grants in 2022–2024 against only 0 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.

Cruiser Accessori…

38
Cymabay Therapeut…

38
Delta Tooling

38
Dnae Group Holdin…

38
Datacolor

38
Defond Componets

38
Designetics

38
Dewertokin

38
Dongguan Huihuan… ◀

38

What this shows Dongguan holds 38 patents at rank #8,365, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dongguan

By rank, the assignees closest to #8,365 in granted patent volume.

Leaders in F21K (Non-electric Light Sources Using Luminescence)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Dongguan, neither rank-band nor same-CPC leaders (those blocks stay above). In F21K (Non-electric Light Sources Using Luminescence), Dongguan ranks #50 of 564 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (44 here).

Siltectra GmbH 44 The Board of Trustees of the Leland Stanford Jr. University 44 Xiamen Hongfa Electric Power Controls Co., Ltd. 44 Aptima, Inc. 44

Dongguan's Innovation Score vs. every tracked assignee

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

44 Top 27% higher than 73% 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 · 2022–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.

View data table

Dongguan Huihuan Lighting Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	4	10.5%
2023	15	39.5%
2024	16	42.1%
2025partial year	3	7.9%

Which technologies does Dongguan Huihuan Lighting Co., Ltd patent most?

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 16

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 14

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 13

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 3

F21W - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems 1

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

Top 6 of 6 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

Dongguan Huihuan Lighting Co., Ltd's patent record in context - here's where to go next.

Dongguan Huihuan Lighting Co., Ltd's lead technology class is 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-gen), 42.1% of its portfolio - see every assignee active in that class. Explore F21K
Ranked #8,370 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dongguan Huihuan Lighting Co., Ltd against Cruiser Accessories, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.8/100 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.