Where does Xiamen Changelight Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Xiamen Changelight Co., Ltd. ranks #16,521 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 Xiamen Changelight Co., Ltd. hold?

Xiamen Changelight Co., Ltd. holds 18 US utility patents granted between 2018 and 2025, spanning 6 technology areas.

What is Xiamen Changelight Co., Ltd.'s Innovation Score?

Xiamen Changelight Co., Ltd. has an Innovation Score of 36.6 out of 100 (top 46% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Xiamen Changelight Co., Ltd. focus on?

Xiamen Changelight Co., Ltd.'s top technology area is H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers) with 18 patents, ranking #143 of 857 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Xiamen Changelight Co., Ltd.'s patent grant rate increasing or decreasing?

Xiamen Changelight Co., Ltd.'s recent grant velocity is +225% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Xiamen Changelight Co., Ltd.'s patents?

Xiamen Changelight Co., Ltd.'s patents average 16.9 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.

How is the Xiamen Changelight 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

Xiamen Changelight Co., Ltd.

USPTO PatentsView assignee record - 18 granted patents across 6 technology areas, recorded in grant years 2018–2025. 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: H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Xiamen ranks #16,521 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 6 technology areas.

#16,521
of 49,997 US assignees by volume: Top 46%
by Innovation Score (36.6/100): 16.9
avg claims per patent: +225%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16521 · Foreign Corporation #16,521 · 18 grants

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

GRANTS-MICRO 18 grants
MID-PACK #16,521/49,997
PHOTO-FINISH Winegard
CPC-NARROW H10H · 6 areas
INNOV-THIN 36.6/100
CLAIMS-RICH 16.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +225% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Winegard Company (±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 Xiamen’s 36.6 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 10.2 pts (28%) Velocity 7.6 pts (21%) Breadth 8.7 pts (24%) Claim depth 10.2 pts (28%)

Qualcomm Incorporated · highest

85
Xiamen Changelight · this assignee

37
3D Lighting… · lowest

7

What this shows Xiamen's Innovation Score is 36.6/100 (top 46% 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 Xiamen?

Each dot is one of Xiamen’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). Xiamen’s own 16.9 claims/patent is ABOVE the 15.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Xiamen's grants concentrate

Xiamen Changelight Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers). Peak complete grant year is 2022 (4 grants) versus a trough of 2 in 2018. By volume, Xiamen sits between Winegard Company and Yiwu Ligao Technology Co., Ltd..

Xiamen's three-year grant acceleration

Xiamen Changelight Co., Ltd. shows 8 grants in 2022–2024 against only 7 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.

Winegard

18
Woodside Energy P…

18
World Wide Statio…

18
X-spine Systems

18
Xylon

18
Yandex Self Drivi…

18
Yanegijutsukenkyu…

18
Yiwu Ligao Techno…

18
Xiamen Changelight ◀

18

What this shows Xiamen holds 18 patents at rank #16,518, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Xiamen

By rank, the assignees closest to #16,518 in granted patent volume.

Leaders in H10H (Inorganic Light-emitting Semiconductor Devices Having Pot…)

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

Xiamen's Innovation Score vs. every tracked assignee

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

37 Top 46% higher than 54% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Xiamen Changelight Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	2	11.1%
2019	2	11.1%
2020	2	11.1%
2021	3	16.7%
2022	4	22.2%
2023	4	22.2%
2025partial year	1	5.6%

Which technologies does Xiamen Changelight Co., Ltd. patent most?

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 18

H01L - Semiconductor Devices NOT Covered BY Class H10 7

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 2

C30B - Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrystalline Material With Defined Structure ; Single Crystals OR Homogeneous Polycrystalline Material WI 2

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 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

Xiamen Changelight Co., Ltd.'s patent record in context - here's where to go next.

Xiamen Changelight Co., Ltd.'s lead technology class is H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers), 100% of its portfolio - see every assignee active in that class. Explore H10H
Ranked #16,521 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Xiamen Changelight Co., Ltd. against Winegard Company, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.6/100 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.