Overall rank by patents
#30,640
of 49,997 tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Xiamen Sigmastar Technology Ltd.
USPTO PatentsView assignee record - 9 granted patents across 5 technology areas, recorded in grant years 2019–2021. 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: H04N (Pictorial Communication, e.g. Television).
The verdict
According to USPTO PatentsView, Xiamen ranks #30,640 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 5 technology areas.
- #30,640
- of 49,997 US assignees by volume
- 16th percentile
- by Innovation Score (25.0/100)
- 15.2
- avg claims per patent
- +250%
- grant velocity, last 5 yrs
USPTO PatentsView assignee plate
Corpus R30640 · Foreign Corporation #30,640 · 9 grants
GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL
- GRANTS-MICRO 9 grants
- MID-PACK #30,640/49,997
- PHOTO-FINISH XGlow P/T
- CPC-NARROW H04N · 5 areas
- INNOV-THIN 25.0/100
- CLAIMS-RICH 15.2 claims/avg
- TYPE-FRNCORP Foreign Corp
- VEL-SURGE +250% vel
- BOOK-FULL 10/10 fields
Nearest grant-volume peer: XGlow P/T, 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.
Innovation-score neighbourhood around Xiamen
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
- Qualcomm Incorporated · highest
Qualcomm Incorporated · highest
85 score
- Xiamen Sigmastar… · this assignee 25
Xiamen Sigmastar… · this assignee
25 score
- 3D Lighting… · lowest 7
3D Lighting… · lowest
7 score
What this shows Xiamen's Innovation Score is 25.0/100 (16th 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.
Where Xiamen's grants concentrate
Xiamen Sigmastar Technology Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 55.6% of grants classified under H04N (Pictorial Communication, e.g. Television). Peak complete grant year is 2020 (4 grants) versus a trough of 2 in 2019. By volume, Xiamen sits between XGlow P/T, LLC and Xtend AI Inc..
Who files at Xiamen's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Xglow P/T
XGlow P/T, LLC
9 patents
- Xi'an Taikomed Ph…
Xi'an Taikomed Pharmaceutical Technology Co., Ltd.
9 patents
- XIA MEN Mint Furn…
XIA MEN Mint Furniture Co., Ltd.
9 patents
- Xiamen Honor Indu…
Xiamen Honor Industry AND Trading Co., Ltd
9 patents
- Xiangshan Gemfan…
Xiangshan Gemfan Hobby Co., Ltd.
9 patents
- XII Medical
XII Medical, Inc.
9 patents
- Xslent Energy
Xslent Energy Technologies, LLC
9 patents
- Xtend AI
Xtend AI Inc.
9 patents
- Xiamen Sigmastar… ◀
Xiamen Sigmastar Technology Ltd.
9 patents
What this shows Xiamen holds 9 patents at rank #30,607, 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 #30,607 in granted patent volume.
- XGlow P/T, LLC #30,603 · 9 patents
- Xi'an Taikomed Pharmaceutical Technology Co., Ltd. #30,604 · 9 patents
- XIA MEN Mint Furniture Co., Ltd. #30,605 · 9 patents
- Xiamen Honor Industry AND Trading Co., Ltd #30,606 · 9 patents
- Xiangshan Gemfan Hobby Co., Ltd. #30,608 · 9 patents
- XII Medical, Inc. #30,609 · 9 patents
- Xslent Energy Technologies, LLC #30,610 · 9 patents
- Xtend AI Inc. #30,611 · 9 patents
Leaders in H04N (Pictorial Communication)
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)
25 16th percentile higher than 16% 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
Grants by year
Teal-shaded recent years (2020–present) versus the 2019–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2019 | 2 | 22.2% |
| 2020 | 4 | 44.4% |
| 2021 | 3 | 33.3% |
Which technologies does Xiamen Sigmastar Technology Ltd. patent most?
Top 5 of 5 technology areas
What to do with this data
Xiamen Sigmastar Technology Ltd.'s patent record in context - here's where to go next.
- Xiamen Sigmastar Technology Ltd.'s lead technology class is H04N (Pictorial Communication, e.g. Television), 55.6% of its portfolio - see every assignee active in that class. Explore H04N
- Ranked #30,640 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
- Compare Xiamen Sigmastar Technology Ltd. against XGlow P/T, LLC, an assignee filing at a similar volume. Compare portfolios
- Innovation Score of 25.0/100 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.
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.