Star Group IND. Co., Ltd
USPTO PatentsView assignee record - 6 granted patents across 5 technology areas, recorded in grant years 2019–2025. 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: H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties).
The verdict
According to USPTO PatentsView, Star ranks #43,296 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 5 technology areas.
- #43,296
- of 49,997 US assignees by volume
- Top 42%
- by Innovation Score (37.8/100)
- 5.3
- avg claims per patent
- +300%
- grant velocity, last 5 yrs
USPTO PatentsView assignee plate
Corpus R43296 · Foreign Corporation #43,296 · 6 grants
GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL
- GRANTS-MICRO 6 grants
- LOWER-Q #43,296/49,997
- PHOTO-FINISH ST R&DTech
- CPC-NARROW H01F · 5 areas
- INNOV-THIN 37.8/100
- CLAIMS-SPARSE 5.3 claims/avg
- TYPE-FRNCORP Foreign Corp
- VEL-SURGE +300% vel
- BOOK-FULL 10/10 fields
Nearest grant-volume peer: ST R&DTech 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 Star’s 37.8 Innovation Score adds up
The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.
Innovation-score neighbourhood around Star
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
- Qualcomm Incorporated · highest
Qualcomm Incorporated · highest
85 score
- Star Group IND · this assignee
Star Group IND · this assignee
38 score
- 3D Lighting… · lowest 7
3D Lighting… · lowest
7 score
What this shows Star's Innovation Score is 37.8/100 (top 42% 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 Star?
Each dot is one of Star’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). Star’s own 5.3 claims/patent is at or below the 16.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.
Where Star's grants concentrate
Star Group IND. Co., Ltd is a focused PatentsView assignee: 5 CPC subclasses with 100% of grants classified under H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties). Peak complete grant year is 2022 (2 grants) versus a trough of 1 in 2019. By volume, Star sits between ST R&DTech LLC and Start Project, LLC.
Star's three-year grant acceleration
Star Group IND. Co., Ltd shows 4 grants in 2022–2024 against only 1 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.
Who files at Star's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- ST R&Dtech
ST R&DTech LLC
6 patents
- Stageright
Stageright Corporation
6 patents
- Standard Cable USA
Standard Cable USA, Inc.
6 patents
- Star BP
Star BP, Inc.
6 patents
- Star Systems Inte…
Star Systems International Limited
6 patents
- Starbreeze Paris
Starbreeze Paris
6 patents
- Starklab
Starklab
6 patents
- Start Project
Start Project, LLC
6 patents
- Star Group IND ◀
Star Group IND. Co., Ltd
6 patents
What this shows Star holds 6 patents at rank #42,983, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near Star
By rank, the assignees closest to #42,983 in granted patent volume.
- ST R&DTech LLC #42,979 · 6 patents
- Stageright Corporation #42,980 · 6 patents
- Standard Cable USA, Inc. #42,981 · 6 patents
- Star BP, Inc. #42,982 · 6 patents
- Star Systems International Limited #42,984 · 6 patents
- Starbreeze Paris #42,985 · 6 patents
- Starklab #42,986 · 6 patents
- Start Project, LLC #42,987 · 6 patents
Leaders in H01F (Magnets)
Other assignees with the most granted patents in Star's primary technology class.
- Murata Manufacturing Co., Ltd. 1,164 in class
- TDK Corporation 904 in class
- Taiwan Semiconductor Manufacturing Company Ltd. 281 in class
- Hitachi, Ltd. 234 in class
- Taiyo Yuden Co., Ltd. 223 in class
- JFE Steel Corporation 209 in class
- Sumitomo Electric Industries, Ltd. 171 in class
- Nippon Steel Corporation 167 in class
Star's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
38 Top 42% higher than 58% 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 | 1 | 16.7% |
| 2022 | 2 | 33.3% |
| 2023 | 1 | 16.7% |
| 2024 | 1 | 16.7% |
| 2025partial year | 1 | 16.7% |
Which technologies does Star Group IND. Co., Ltd patent most?
Top 5 of 5 technology areas
Data Source
USPTO PatentsView, US granted patents 2015–2025
What to do with this data
Star Group IND. Co., Ltd's patent record in context - here's where to go next.
- Star Group IND. Co., Ltd's lead technology class is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties), 100% of its portfolio - see every assignee active in that class. Explore H01F
- Ranked #43,296 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
- Compare Star Group IND. Co., Ltd against ST R&DTech LLC, an assignee filing at a similar volume. Compare portfolios
- Innovation Score of 37.8/100 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.