Where does Dongguan Shuiquanzi Industrial Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dongguan Shuiquanzi Industrial Co., Ltd. ranks #46,249 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 Shuiquanzi Industrial Co., Ltd. hold?

Dongguan Shuiquanzi Industrial Co., Ltd. holds 5 US utility patents granted between 2024 and 2025, spanning 5 technology areas.

What is Dongguan Shuiquanzi Industrial Co., Ltd.'s Innovation Score?

Dongguan Shuiquanzi Industrial Co., Ltd. has an Innovation Score of 28.8 out of 100 (28th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Dongguan Shuiquanzi Industrial Co., Ltd.'s patent grant rate increasing or decreasing?

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

What does claim depth mean for Dongguan Shuiquanzi Industrial Co., Ltd.'s patents?

Dongguan Shuiquanzi Industrial Co., Ltd.'s patents average 13.4 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 Shuiquanzi Industrial 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 Shuiquanzi Industrial Co., Ltd.

Q: What technology areas does Dongguan Shuiquanzi Industrial Co., Ltd. focus on?

Dongguan Shuiquanzi Industrial Co., Ltd.'s top technology area is F21S (Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors) with 4 patents, ranking #355 of 1,094 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 5 technology areas, recorded in grant years 2024–2025. 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: F21S (Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Dongguan ranks #46,249 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 5 technology areas.

#46,249
of 49,997 US assignees by volume: 28th percentile
by Innovation Score (28.8/100): 13.4
avg claims per patent

USPTO PatentsView assignee plate

Corpus R46249 · Foreign Corporation #46,249 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,249/49,997
PHOTO-FINISH Dongguan Keben…
CPC-NARROW F21S · 5 areas
INNOV-THIN 28.8/100
CLAIMS-RICH 13.4 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2024–2025 · 2y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Dongguan Keben Electrical Appliance Co., Ltd. (±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 28.8 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 6.2 pts (22%) Velocity 6.7 pts (23%) Breadth 7.9 pts (27%) Claim depth 8.0 pts (28%)

Qualcomm Incorporated · highest

85
Dongguan Shuiquanzi… · this assignee

29
3D Lighting… · lowest

7

What this shows Dongguan's Innovation Score is 28.8/100 (28th 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 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 13.4 claims/patent is ABOVE the 1.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Dongguan's grants concentrate

Dongguan Shuiquanzi Industrial Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 80% of grants classified under F21S (Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors). By volume, Dongguan sits between Dongguan Keben Electrical Appliance Co., Ltd. and Dongshin Hydraulics Co., Ltd..

Dongguan's three-year grant acceleration

Dongguan Shuiquanzi Industrial Co., Ltd. shows 1 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.

Dongguan Keben El…

5
Dongguan Master U…

5
Dongguan Mauten t…

5
Dongguan Simzo Te…

5
Dongguan Siyou Te…

5
Dongguan Zhanshen…

5
Dongguan Zheshi T…

5
Dongshin Hydrauli…

5
Dongguan Shuiquan… ◀

5

What this shows Dongguan holds 5 patents at rank #46,318, 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 #46,318 in granted patent volume.

Leaders in F21S (Non-portable Lighting Devices)

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

Dongguan's Innovation Score vs. every tracked assignee

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

29 28th percentile higher than 28% 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 · 2024–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2024–2019 baseline. Full figures in the table below.

View data table

Dongguan Shuiquanzi Industrial Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2024	1	20.0%
2025partial year	4	80.0%

Which technologies does Dongguan Shuiquanzi Industrial Co., Ltd. patent most?

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 4

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 4

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 3

F21W - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems 2

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 1

Top 5 of 5 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 Shuiquanzi Industrial Co., Ltd.'s patent record in context - here's where to go next.

Dongguan Shuiquanzi Industrial Co., Ltd.'s lead technology class is F21S (Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors), 80% of its portfolio - see every assignee active in that class. Explore F21S
Ranked #46,249 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dongguan Shuiquanzi Industrial Co., Ltd. against Dongguan Keben Electrical Appliance Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.8/100 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.