Where does Yuyao Yuchang Electrical Appliance Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Yuyao Yuchang Electrical Appliance Co., Ltd. ranks #8,724 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 Yuyao Yuchang Electrical Appliance Co., Ltd. hold?

Yuyao Yuchang Electrical Appliance Co., Ltd. holds 37 US utility patents granted between 2016 and 2025, spanning 7 technology areas.

What is Yuyao Yuchang Electrical Appliance Co., Ltd.'s Innovation Score?

Yuyao Yuchang Electrical Appliance Co., Ltd. has an Innovation Score of 25.4 out of 100 (17th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Yuyao Yuchang Electrical Appliance Co., Ltd.'s patent grant rate increasing or decreasing?

Yuyao Yuchang Electrical Appliance Co., Ltd.'s recent grant velocity is +6% 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 Yuyao Yuchang Electrical Appliance Co., Ltd.'s patents?

Yuyao Yuchang Electrical Appliance Co., Ltd.'s patents average 2.4 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Yuyao Yuchang Electrical Appliance Co., Ltd.

Q: What technology areas does Yuyao Yuchang Electrical Appliance Co., Ltd. focus on?

Yuyao Yuchang Electrical Appliance Co., Ltd.'s top technology area is F21L (Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation) with 3 patents, ranking #55 of 199 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Q: How is the Yuyao Yuchang Electrical Appliance 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 - 37 granted patents across 7 technology areas, recorded in grant years 2016–2025. 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: F21L (Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Yuyao ranks #8,724 of 49,997 tracked US assignees by granted-patent volume, with 37 patents across 7 technology areas.

#8,724
of 49,997 US assignees by volume: 17th percentile
by Innovation Score (25.4/100): 2.4
avg claims per patent: +6%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8724 · Foreign Corporation #8,724 · 37 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-SMALL 37 grants
UPPER-Q #8,724/49,997
PHOTO-FINISH iTool Equipment…
CPC-NARROW F21L · 7 areas
INNOV-THIN 25.4/100
CLAIMS-SPARSE 2.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +6% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: iTool Equipment Holding 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 Yuyao’s 25.4 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 12.6 pts (49%) Velocity 2.1 pts (8%) Breadth 9.4 pts (37%) Claim depth 1.4 pts (5%)

Qualcomm Incorporated · highest

85
Billy Goat Industries · near

25
Hysolate · near

25
Yuyao Yuchang… · this assignee

25
Teenage Engineering AB · near

25
Ye Xin Technology… · near

25
3D Lighting… · lowest

7

What this shows Yuyao's Innovation Score is 25.4/100 (17th 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 Yuyao?

Each dot is one of Yuyao’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). Yuyao’s own 2.4 claims/patent is at or below the 11.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Yuyao's grants concentrate

Yuyao Yuchang Electrical Appliance Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 8.1% of grants classified under F21L (Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation). Peak complete grant year is 2020 (10 grants) versus a trough of 1 in 2023. By volume, Yuyao sits between Wintek Corporation and 22 Evolution LLC.

Yuyao's three-year grant acceleration

Yuyao Yuchang Electrical Appliance Co., Ltd. shows 5 grants in 2022–2024 against only 16 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.

Wintek

37
Wirepath Home Sys…

37
Xylem Europe

37
Yamashin-filter

37
Zagg Intellectual…

37
Zodiac Aero Elect…

37
itool Equipment H…

37
Yuyao Yuchang Ele… ◀

37
22 Evolution

36

What this shows Yuyao holds 37 patents at rank #8,723, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Yuyao

By rank, the assignees closest to #8,723 in granted patent volume.

Leaders in F21L (Lighting Devices OR Systems Thereof)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Yuyao, neither rank-band nor same-CPC leaders (those blocks stay above). In F21L (Lighting Devices OR Systems Thereof), Yuyao ranks #55 of 199 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (25 here).

Billy Goat Industries, Inc. 25 Hysolate Ltd. 25 Teenage Engineering AB 25 Ye Xin Technology Consulting Co., Ltd. 25

Yuyao's Innovation Score vs. every tracked assignee

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

25 17th percentile higher than 17% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Yuyao Yuchang Electrical Appliance Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	3	8.1%
2017	7	18.9%
2018	4	10.8%
2019	3	8.1%
2020	10	27.0%
2021	3	8.1%
2022	2	5.4%
2023	1	2.7%
2024	2	5.4%
2025partial year	2	5.4%

Which technologies does Yuyao Yuchang Electrical Appliance Co., Ltd. patent most?

F21L - Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation 3

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 3

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

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 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

Y10T - Technical Subjects Covered BY Former US Classification 1

Top 7 of 7 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

Yuyao Yuchang Electrical Appliance Co., Ltd.'s patent record in context - here's where to go next.

Yuyao Yuchang Electrical Appliance Co., Ltd.'s lead technology class is F21L (Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation), 8.1% of its portfolio - see every assignee active in that class. Explore F21L
Ranked #8,724 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Yuyao Yuchang Electrical Appliance Co., Ltd. against Wintek Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 25.4/100 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.