Where does Zhongshan Winstar Electrical Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhongshan Winstar Electrical Co., Ltd. ranks #20,660 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 Zhongshan Winstar Electrical Co., Ltd. hold?

Zhongshan Winstar Electrical Co., Ltd. holds 14 US utility patents granted between 2015 and 2021, spanning 6 technology areas.

What is Zhongshan Winstar Electrical Co., Ltd.'s Innovation Score?

Zhongshan Winstar Electrical Co., Ltd. has an Innovation Score of 19.3 out of 100 (6th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Zhongshan Winstar Electrical Co., Ltd.'s patent grant rate increasing or decreasing?

Zhongshan Winstar Electrical Co., Ltd.'s recent grant velocity is -25% 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 Zhongshan Winstar Electrical Co., Ltd.'s patents?

Zhongshan Winstar Electrical Co., Ltd.'s patents average 2.2 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 Zhongshan Winstar Electrical 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

Zhongshan Winstar Electrical Co., Ltd.

Q: What technology areas does Zhongshan Winstar Electrical Co., Ltd. focus on?

Zhongshan Winstar Electrical 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 2 patents, ranking #906 of 1,842 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 14 granted patents across 6 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: 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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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Zhongshan ranks #20,660 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 6 technology areas.

#20,660
of 49,997 US assignees by volume: 6th percentile
by Innovation Score (19.3/100): 2.2
avg claims per patent: -25%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R20660 · Foreign Corporation #20,660 · 14 grants

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

GRANTS-MICRO 14 grants
MID-PACK #20,660/49,997
PHOTO-FINISH glasses com
CPC-NARROW F21V · 6 areas
INNOV-LOW 19.3/100
CLAIMS-SPARSE 2.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -25% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: glasses.com 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 Zhongshan’s 19.3 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 9.4 pts (48%) Velocity 0.0 pts (0%) Breadth 8.7 pts (45%) Claim depth 1.3 pts (7%)

Qualcomm Incorporated · highest

85
Zhongshan Winstar… · this assignee

19
3D Lighting… · lowest

7

What this shows Zhongshan's Innovation Score is 19.3/100 (6th 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 Zhongshan?

Each dot is one of Zhongshan’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). Zhongshan’s own 2.2 claims/patent is at or below the 20.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Zhongshan's grants concentrate

Zhongshan Winstar Electrical Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 14.3% 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 2018 (3 grants) versus a trough of 1 in 2016. By volume, Zhongshan sits between Zap Surgical Systems, Inc. and glasses.com Inc..

Zap Surgical Syst…

14
Zebra Medical Vis…

14
Zeto

14
Zhejiang Jinbang…

14
Ziilabs

14
Zunum Aero

14
Zyga Technology

14
glasses com

14
Zhongshan Winstar… ◀

14

What this shows Zhongshan holds 14 patents at rank #20,657, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zhongshan

By rank, the assignees closest to #20,657 in granted patent volume.

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

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

Zhongshan's Innovation Score vs. every tracked assignee

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

19 6th percentile higher than 6% 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

Zhongshan Winstar Electrical Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	14.3%
2016	1	7.1%
2018	3	21.4%
2019	2	14.3%
2020	3	21.4%
2021	3	21.4%

Which technologies does Zhongshan Winstar Electrical 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 2

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

G02B - Optical Elements, Systems OR Apparatus 1

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 1

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 1

F21L - Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation 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

Zhongshan Winstar Electrical Co., Ltd.'s patent record in context - here's where to go next.

Zhongshan Winstar Electrical Co., Ltd.'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), 14.3% of its portfolio - see every assignee active in that class. Explore F21V
Ranked #20,660 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhongshan Winstar Electrical Co., Ltd. against Zap Surgical Systems, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 19.3/100 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.