Where does StemRad Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), StemRad Ltd. ranks #33,437 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 StemRad Ltd. hold?

StemRad Ltd. holds 8 US utility patents granted between 2019 and 2025, spanning 10 technology areas.

What is StemRad Ltd.'s Innovation Score?

StemRad Ltd. has an Innovation Score of 37.8 out of 100 (top 43% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is StemRad Ltd.'s patent grant rate increasing or decreasing?

StemRad Ltd.'s recent grant velocity is +500% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for StemRad Ltd.'s patents?

StemRad 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 StemRad 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

StemRad Ltd.

Q: What technology areas does StemRad Ltd. focus on?

StemRad Ltd.'s top technology area is G21F (Protection Against X-radiation, Gamma Radiation, Corpuscular Radiation OR Particle BOMBARDMENT; Treating Radioactively Contaminated MATERIAL; Decontamination Arrangements Therefor) with 7 patents, ranking #23 of 199 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 8 granted patents across 10 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: G21F (Protection Against X-radiation, Gamma Radiation, Corpuscular Radiation OR Particle BOMBARDMENT; Treating Radioactively Contaminated MATERIAL; Decontamination Arrangements Therefor).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Stemrad ranks #33,437 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 10 technology areas.

#33,437
of 49,997 US assignees by volume: Top 43%
by Innovation Score (37.8/100): 16.9
avg claims per patent: +500%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R33437 · Foreign Corporation #33,437 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #33,437/49,997
PHOTO-FINISH Starlight
CPC-FOCUS G21F · 10 areas
INNOV-THIN 37.8/100
CLAIMS-RICH 16.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +500% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Starlight, AG, 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 Stemrad’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.

Volume 7.6 pts (20%) Velocity 8.9 pts (24%) Breadth 11.2 pts (30%) Claim depth 10.1 pts (27%)

Qualcomm Incorporated · highest

85
StemRad · this assignee

38
3D Lighting… · lowest

7

What this shows Stemrad's Innovation Score is 37.8/100 (top 43% 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 Stemrad?

Each dot is one of Stemrad’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). Stemrad’s own 16.9 claims/patent is ABOVE the 9.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Stemrad's grants concentrate

StemRad Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 87.5% of grants classified under G21F (Protection Against X-radiation, Gamma Radiation, Corpuscular Radiation OR Particle BOMBARDMENT; Treating Radioactively Contaminated MATERIAL; Decontamination Arrangements Therefor). Peak complete grant year is 2020 (2 grants) versus a trough of 1 in 2019. By volume, Stemrad sits between Starlight, AG, LLC and Stomp Patent LLC.

Stemrad's three-year grant acceleration

StemRad Ltd. shows 4 grants in 2022–2024 against only 3 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.

Starlight

8
Statek

8
Stella Pharma

8
Stellantis Auto S…

8
Stemonix

8
Step Ahead Innova…

8
Stodge

8
Stomp Patent

8
Stemrad ◀

8

What this shows StemRad holds 8 patents at rank #33,458, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near StemRad

By rank, the assignees closest to #33,458 in granted patent volume.

Leaders in G21F (Protection Against X-radiation)

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

Stemrad's Innovation Score vs. every tracked assignee

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

38 Top 43% higher than 57% 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 · 2019–2025

Grants by year

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

View data table

StemRad Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	12.5%
2020	2	25.0%
2022	2	25.0%
2023	1	12.5%
2024	1	12.5%
2025partial year	1	12.5%

Which technologies does StemRad Ltd. patent most?

G21F - Protection Against X-radiation, Gamma Radiation, Corpuscular Radiation OR Particle BOMBARDMENT; Treating Radioactively Contaminated MATERIAL; Decontamination Arrangements Therefor 7

A41D - OUTERWEAR; Protective GARMENTS; Accessories 5

A61B - DIAGNOSIS; SURGERY; Identification 4

B64G - COSMONAUTICS; Vehicles OR Equipment Therefor 3

A62B - Devices, Apparatus OR Methods FOR Life-saving 1

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 1

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy 1

A41F - Garment FASTENINGS; Suspenders 1

A61F - Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs 1

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 1

Top 10 of 10 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

StemRad Ltd.'s patent record in context - here's where to go next.

StemRad Ltd.'s lead technology class is G21F (Protection Against X-radiation, Gamma Radiation, Corpuscular Radiation OR Particle BOMBARDMENT; Treating Radioactively Contaminated MATERIAL; Decontamination Arrangements Therefor), 87.5% of its portfolio - see every assignee active in that class. Explore G21F
Ranked #33,437 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare StemRad Ltd. against Starlight, AG, 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.

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.