Where does Stewart Superabsorbents, LLC rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Stewart Superabsorbents, LLC ranks #43,331 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 Stewart Superabsorbents, LLC hold?

Stewart Superabsorbents, LLC holds 6 US utility patents granted between 2019 and 2023, spanning 10 technology areas.

What is Stewart Superabsorbents, LLC's Innovation Score?

Stewart Superabsorbents, LLC has an Innovation Score of 29.7 out of 100 (32nd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Stewart Superabsorbents, LLC's patent grant rate increasing or decreasing?

Stewart Superabsorbents, LLC's recent grant velocity is +400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Stewart Superabsorbents, LLC's patents?

Stewart Superabsorbents, LLC's patents average 14.2 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 Stewart Superabsorbents, LLC 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 US Corporation

Stewart Superabsorbents, LLC

Q: What technology areas does Stewart Superabsorbents, LLC focus on?

Stewart Superabsorbents, LLC's top technology area is 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) with 3 patents, ranking #1,777 of 3,490 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 10 technology areas, recorded in grant years 2019–2023. 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: 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).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Stewart ranks #43,331 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 10 technology areas.

#43,331
of 49,997 US assignees by volume: 32nd percentile
by Innovation Score (29.7/100): 14.2
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R43331 · US Corporation #43,331 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #43,331/49,997
PHOTO-FINISH Step Energy Services
CPC-FOCUS A61M · 10 areas
INNOV-THIN 29.7/100
CLAIMS-RICH 14.2 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Step Energy Services 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 Stewart’s 29.7 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 6.7 pts (23%) Velocity 3.3 pts (11%) Breadth 11.2 pts (38%) Claim depth 8.5 pts (29%)

Qualcomm Incorporated · highest

85
Stewart Superabsorbe… · this assignee

30
3D Lighting… · lowest

7

What this shows Stewart's Innovation Score is 29.7/100 (32nd 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.

Does more volume mean deeper claims for Stewart?

Each dot is one of Stewart’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). Stewart’s own 14.2 claims/patent is at or below the 14.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Stewart's grants concentrate

Stewart Superabsorbents, LLC is a focused PatentsView assignee: 10 CPC subclasses with 50% of grants classified under 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). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2019. By volume, Stewart sits between Step Energy Services Ltd. and Stimgenics, LLC.

Stewart's three-year grant acceleration

Stewart Superabsorbents, LLC shows 2 grants in 2022–2024 against only 4 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.

Step Energy Servi…

6
Stereology Resour…

6
Sterling Shelf Li…

6
Steute & KG

6
Stichting I-F Pro…

6
Sticnstac

6
Stilla

6
Stimgenics

6
Stewart Superabso… ◀

6

What this shows Stewart holds 6 patents at rank #43,001, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Stewart

By rank, the assignees closest to #43,001 in granted patent volume.

Leaders in A61M (Devices FOR Introducing Media Into)

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

Stewart's Innovation Score vs. every tracked assignee

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

30 32nd percentile higher than 32% 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 · 2019–2023

Grants by year

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

View data table

Stewart Superabsorbents, LLC patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	16.7%
2020	1	16.7%
2021	2	33.3%
2023	2	33.3%

Which technologies does Stewart Superabsorbents, LLC patent most?

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 3

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

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 2

A62D - Chemical Means FOR Extinguishing Fires OR FOR Combating OR Protecting Against Harmful Chemical AGENTS; Chemical Materials FOR USE IN Breathing Apparatus 2

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 2

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 2

B09B - Disposal OF Solid Waste NOT Otherwise Provided FOR 1

A61J - Containers Specially Adapted FOR Medical OR Pharmaceutical PURPOSES; Devices OR Methods Specially Adapted FOR Bringing Pharmaceutical Products Into Particular Physical OR Administering FORMS; Devices FOR Administering Food OR Medicines ORALLY; Baby COMFORTERS; Devices FOR Receiving Spittle 1

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 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

Stewart Superabsorbents, LLC's patent record in context - here's where to go next.

Stewart Superabsorbents, LLC's lead technology class is 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), 50% of its portfolio - see every assignee active in that class. Explore A61M
Ranked #43,331 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Stewart Superabsorbents, LLC against Step Energy Services Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.7/100 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.