Where does Zhejiang JIU Kang Electric Appliances Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhejiang JIU Kang Electric Appliances Co., Ltd. ranks #33,990 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 JIU Kang Electric Appliances Co., Ltd. hold?

Zhejiang JIU Kang Electric Appliances Co., Ltd. holds 8 US utility patents granted between 2017 and 2025, spanning 6 technology areas.

What is Zhejiang JIU Kang Electric Appliances Co., Ltd.'s Innovation Score?

Zhejiang JIU Kang Electric Appliances Co., Ltd. has an Innovation Score of 28.2 out of 100 (27th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Zhejiang JIU Kang Electric Appliances Co., Ltd.'s patent grant rate increasing or decreasing?

Zhejiang JIU Kang Electric Appliances Co., Ltd.'s recent grant velocity is +150% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Zhejiang JIU Kang Electric Appliances Co., Ltd.'s patents?

Zhejiang JIU Kang Electric Appliances Co., Ltd.'s patents average 8.9 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 JIU Kang Electric Appliances Co., Ltd.

Q: What technology areas does Zhejiang JIU Kang Electric Appliances Co., Ltd. focus on?

Zhejiang JIU Kang Electric Appliances Co., Ltd.'s top technology area is F24C (Domestic Stoves OR Ranges ; Details OF Domestic Stoves OR Ranges, OF General Application) with 3 patents, ranking #92 of 281 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Q: How is the Zhejiang JIU Kang Electric Appliances 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 - 8 granted patents across 6 technology areas, recorded in grant years 2017–2025. 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: F24C (Domestic Stoves OR Ranges ; Details OF Domestic Stoves OR Ranges, OF General Application).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zhejiang ranks #33,990 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 6 technology areas.

#33,990
of 49,997 US assignees by volume: 27th percentile
by Innovation Score (28.2/100): 8.9
avg claims per patent: +150%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R33990 · Foreign Corporation #33,990 · 8 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 8 grants
MID-PACK #33,990/49,997
PHOTO-FINISH Zhaoqing Heng YI…
CPC-NARROW F24C · 6 areas
INNOV-THIN 28.2/100
CLAIMS-PAR 8.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +150% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Zhaoqing Heng YI Industrial Company Limited (±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 28.2 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 7.6 pts (27%) Velocity 6.7 pts (24%) Breadth 8.7 pts (31%) Claim depth 5.3 pts (19%)

Qualcomm Incorporated · highest

85
Zhejiang JIU Kang… · this assignee

28
3D Lighting… · lowest

7

What this shows Zhejiang's Innovation Score is 28.2/100 (27th 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 8.9 claims/patent is at or below the 9.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Zhejiang's grants concentrate

Zhejiang JIU Kang Electric Appliances Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 37.5% of grants classified under F24C (Domestic Stoves OR Ranges ; Details OF Domestic Stoves OR Ranges, OF General Application). Peak complete grant year is 2022 (2 grants) versus a trough of 1 in 2017. By volume, Zhejiang sits between Zhaoqing Heng YI Industrial Company Limited and Zhejiang YAT Electrical Appliance Co., Ltd.

Zhejiang's three-year grant acceleration

Zhejiang JIU Kang Electric Appliances Co., Ltd. shows 3 grants in 2022–2024 against only 3 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 Heng YI…

8
Zhejiang A & F Un…

8
Zhejiang Feijian…

8
Zhejiang Jingyi N…

8
Zhejiang Liankong

8
Zhejiang Xunshi T…

8
Zhejiang Yankon M…

8
Zhejiang YAT Elec…

8
Zhejiang JIU Kang… ◀

8

What this shows Zhejiang holds 8 patents at rank #33,964, 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 #33,964 in granted patent volume.

Leaders in F24C (Domestic Stoves OR Ranges)

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)

28 27th percentile higher than 27% 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 · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Zhejiang JIU Kang Electric Appliances Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	12.5%
2019	1	12.5%
2020	1	12.5%
2021	1	12.5%
2022	2	25.0%
2023	1	12.5%
2025partial year	1	12.5%

Which technologies does Zhejiang JIU Kang Electric Appliances Co., Ltd. patent most?

F24C - Domestic Stoves OR Ranges ; Details OF Domestic Stoves OR Ranges, OF General Application 3

A47J - Kitchen EQUIPMENT; Coffee MILLS; Spice MILLS; Apparatus FOR Making Beverages 2

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 2

A62C - Fire-fighting 2

B30B - Presses IN General 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

Zhejiang JIU Kang Electric Appliances Co., Ltd.'s patent record in context - here's where to go next.

Zhejiang JIU Kang Electric Appliances Co., Ltd.'s lead technology class is F24C (Domestic Stoves OR Ranges ; Details OF Domestic Stoves OR Ranges, OF General Application), 37.5% of its portfolio - see every assignee active in that class. Explore F24C
Ranked #33,990 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhejiang JIU Kang Electric Appliances Co., Ltd. against Zhaoqing Heng YI Industrial Company Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.2/100 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.