Where does Zhejiang Sunshine Leisure Products Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhejiang Sunshine Leisure Products Co., Ltd. ranks #38,443 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 Zhejiang Sunshine Leisure Products Co., Ltd. hold?

Zhejiang Sunshine Leisure Products Co., Ltd. holds 7 US utility patents granted between 2019 and 2023, spanning 2 technology areas.

What is Zhejiang Sunshine Leisure Products Co., Ltd.'s Innovation Score?

Zhejiang Sunshine Leisure Products Co., Ltd. has an Innovation Score of 19.0 out of 100 (5th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Zhejiang Sunshine Leisure Products Co., Ltd. focus on?

Zhejiang Sunshine Leisure Products Co., Ltd.'s top technology area is A47C (CHAIRS; SOFAS; Beds) with 5 patents, ranking #181 of 728 assignees active in that subclass. Grants appear in 2 CPC subclasses total.

Is Zhejiang Sunshine Leisure Products Co., Ltd.'s patent grant rate increasing or decreasing?

Zhejiang Sunshine Leisure Products Co., Ltd.'s recent grant velocity is +33% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Zhejiang Sunshine Leisure Products Co., Ltd.'s patents?

Zhejiang Sunshine Leisure Products Co., Ltd.'s patents average 9.6 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Zhejiang Sunshine Leisure Products Co., Ltd.

Q: How is the Zhejiang Sunshine Leisure Products 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 PatentsView assignee record - 7 granted patents across 2 technology areas, recorded in grant years 2019–2023. 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: A47C (CHAIRS; SOFAS; Beds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zhejiang ranks #38,443 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 2 technology areas.

#38,443
of 49,997 US assignees by volume: 5th percentile
by Innovation Score (19.0/100): 9.6
avg claims per patent: +33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R38443 · Foreign Corporation #38,443 · 7 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-PAR · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MICRO 7 grants
LOWER-Q #38,443/49,997
PHOTO-FINISH Zhaoqing Hejia
CPC-NARROW A47C · 2 areas
INNOV-LOW 19.0/100
CLAIMS-PAR 9.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Zhaoqing Hejia Electronics 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 Zhejiang’s 19.0 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 7.2 pts (38%) Velocity 1.1 pts (6%) Breadth 5.0 pts (26%) Claim depth 5.7 pts (30%)

Qualcomm Incorporated · highest

85
Zhejiang Sunshine… · this assignee

19
3D Lighting… · lowest

7

What this shows Zhejiang's Innovation Score is 19.0/100 (5th 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 Zhejiang?

Each dot is one of Zhejiang’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). Zhejiang’s own 9.6 claims/patent is ABOVE the 1.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Zhejiang's grants concentrate

Zhejiang Sunshine Leisure Products Co., Ltd. is a focused PatentsView assignee: 2 CPC subclasses with 71.4% of grants classified under A47C (CHAIRS; SOFAS; Beds). Peak complete grant year is 2019 (3 grants) versus a trough of 1 in 2021. By volume, Zhejiang sits between Zhaoqing Hejia Electronics Co., Ltd and Zhongshan Okay Plastics & Electronic Co., Ltd..

Zhejiang's three-year grant acceleration

Zhejiang Sunshine Leisure Products Co., Ltd. shows 1 grants in 2022–2024 against only 6 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.

Zhaoqing Hejia

7
Zhejiang Feier In…

7
Zhejiang Jihengka…

7
Zhejiang Qili Hea…

7
Zhejiang Zeekr Au…

7
Zhigu Holdings

7
Zhongce Rubber Gr…

7
Zhongshan Okay Pl…

7
Zhejiang Sunshine… ◀

7

What this shows Zhejiang holds 7 patents at rank #38,431, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zhejiang

By rank, the assignees closest to #38,431 in granted patent volume.

Leaders in A47C (Chairs)

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

Zhejiang's Innovation Score vs. every tracked assignee

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

19 5th percentile higher than 5% 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 · 2019–2023

Grants by year

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

View data table

Zhejiang Sunshine Leisure Products Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	3	42.9%
2020	2	28.6%
2021	1	14.3%
2023	1	14.3%

Which technologies does Zhejiang Sunshine Leisure Products Co., Ltd. patent most?

A47C - CHAIRS; SOFAS; Beds 5

B62B - Hand-propelled Vehicles, e.g. Hand Carts OR PERAMBULATORS; Sledges 1

Top 2 of 2 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

Zhejiang Sunshine Leisure Products Co., Ltd.'s patent record in context - here's where to go next.

Zhejiang Sunshine Leisure Products Co., Ltd.'s lead technology class is A47C (CHAIRS; SOFAS; Beds), 71.4% of its portfolio - see every assignee active in that class. Explore A47C
Ranked #38,443 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhejiang Sunshine Leisure Products Co., Ltd. against Zhaoqing Hejia Electronics Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 19.0/100 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.