Where does Sunstar Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sunstar Inc. ranks #11,820 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 Sunstar Inc. hold?

Sunstar Inc. holds 26 US utility patents granted between 2015 and 2022, spanning 23 technology areas.

What is Sunstar Inc.'s Innovation Score?

Sunstar Inc. has an Innovation Score of 36.0 out of 100 (top 48% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sunstar Inc. focus on?

Sunstar Inc.'s top technology area is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes) with 11 patents, ranking #2,031 of 7,163 assignees active in that subclass. Grants appear in 23 CPC subclasses total.

Is Sunstar Inc.'s patent grant rate increasing or decreasing?

Sunstar Inc.'s recent grant velocity is -76% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Sunstar Inc.'s patents?

Sunstar Inc.'s patents average 8.4 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.

How is the Sunstar Inc. 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

Sunstar Inc.

USPTO PatentsView assignee record - 26 granted patents across 23 technology areas, recorded in grant years 2015–2022. 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: A61K (Preparations FOR Medical, Dental OR Toiletry Purposes).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sunstar ranks #11,820 of 49,997 tracked US assignees by granted-patent volume, with 26 patents across 23 technology areas.

#11,820
of 49,997 US assignees by volume: Top 48%
by Innovation Score (36.0/100): 8.4
avg claims per patent: -76%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11820 · Foreign Corporation #11,820 · 26 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 26 grants
UPPER-Q #11,820/49,997
PHOTO-FINISH Samsung Electro-Meha…
CPC-FOCUS A61K · 23 areas
INNOV-THIN 36.0/100
CLAIMS-PAR 8.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -76% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Samsung Electro-Mehanics Co., Ltd. (±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 Sunstar’s 36.0 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 11.4 pts (32%) Velocity 2.7 pts (7%) Breadth 17.0 pts (47%) Claim depth 5.0 pts (14%)

Qualcomm Incorporated · highest

85
Fujian Eastwest… · near

36
Silixa · near

36
Orbis · near

36
Song Chuan Precision · near

36
Sunstar · this assignee

36
3D Lighting… · lowest

7

What this shows Sunstar's Innovation Score is 36.0/100 (top 48% 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 Sunstar?

Each dot is one of Sunstar’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). Sunstar’s own 8.4 claims/patent is at or below the 13.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sunstar's grants concentrate

Sunstar Inc. is a focused PatentsView assignee: 23 CPC subclasses with 42.3% of grants classified under A61K (Preparations FOR Medical, Dental OR Toiletry Purposes). Peak complete grant year is 2015 (8 grants) versus a trough of 1 in 2021. By volume, Sunstar sits between Solvay USA Inc. and Sandvik Mining and Construction Tools AB.

Sunstar's three-year grant acceleration

Sunstar Inc. shows 2 grants in 2022–2024 against only 5 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.

Solvay USA

26
Song Chuan Precis…

26
Soracom

26
Staedtler Mars &…

26
Syncrude Canada i…

26
Samsung Electro-m…

26
San Diego State U…

26
Sandvik Mining an…

26
Sunstar ◀

26

What this shows Sunstar holds 26 patents at rank #11,806, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sunstar

By rank, the assignees closest to #11,806 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sunstar, neither rank-band nor same-CPC leaders (those blocks stay above). In A61K (Preparations FOR Medical), Sunstar ranks #2,031 of 7,163 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (36 here).

Song Chuan Precision Co., Ltd. 36 Orbis Technologies, Inc. 36 Fujian Eastwest Lifewit Technology Co., Ltd 36 Silixa Ltd. 36

Sunstar's Innovation Score vs. every tracked assignee

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

36 Top 48% higher than 52% 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 · 2015–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Sunstar Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	8	30.8%
2016	2	7.7%
2017	7	26.9%
2018	2	7.7%
2019	2	7.7%
2020	2	7.7%
2021	1	3.8%
2022	2	7.7%

Which technologies does Sunstar Inc. patent most?

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 11

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 9

A61C - DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene 8

A61Q - Specific USE OF Cosmetics OR Similar Toiletry Preparations 6

A46B - Brushes 4

A23L - Foods, Foodstuffs OR Non-alcoholic Beverages, NOT Otherwise Provided FOR; Preparation OR Treatment Thereof 4

C07K - Peptides 3

H02K - Dynamo-electric Machines 2

A45D - Hairdressing OR Shaving Equipment ; Equipment FOR Cosmetics OR Cosmetic Treatments, e.g. FOR Manicuring OR Pedicuring 2

A23V - Indexing Scheme Relating TO Foods, Foodstuffs OR Non-alcoholic Beverages AND Lactic OR Propionic Acid Bacteria Used IN Foodstuffs OR Food Preparation 2

A23G - COCOA; Cocoa Products, e.g. CHOCOLATE; Substitutes FOR Cocoa OR Cocoa PRODUCTS; CONFECTIONERY; Chewing GUM; ICE-CREAM; Preparation Thereof 2

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 2

B05B - Spraying APPARATUS; Atomising APPARATUS; Nozzles 1

A61M - Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor 1

A61H - Physical Therapy Apparatus, e.g. Devices FOR Locating OR Stimulating Reflex Points IN THE BODY; Artificial RESPIRATION; MASSAGE; Bathing Devices FOR Special Therapeutic OR Hygienic Purposes OR Specific Parts OF THE Body 1

Top 15 of 23 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

Sunstar Inc.'s patent record in context - here's where to go next.

Sunstar Inc.'s lead technology class is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes), 42.3% of its portfolio - see every assignee active in that class. Explore A61K
Ranked #11,820 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sunstar Inc. against Solvay USA Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.0/100 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.

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.