Where does Stek Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Stek Co., Ltd. ranks #37,694 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 Stek Co., Ltd. hold?

Stek Co., Ltd. holds 7 US utility patents granted between 2019 and 2025, spanning 12 technology areas.

What is Stek Co., Ltd.'s Innovation Score?

Stek Co., Ltd. has an Innovation Score of 30.6 out of 100 (35th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Stek Co., Ltd.'s patent grant rate increasing or decreasing?

Stek Co., Ltd.'s recent grant velocity is +100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Stek Co., Ltd.'s patents?

Stek Co., Ltd.'s patents average 7.6 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 Stek Co., 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

Stek Co., Ltd.

Q: What technology areas does Stek Co., Ltd. focus on?

Stek Co., Ltd.'s top technology area is C09J (ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives) with 4 patents, ranking #225 of 837 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

USPTO PatentsView assignee record - 7 granted patents across 12 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: C09J (ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Stek ranks #37,694 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 12 technology areas.

#37,694
of 49,997 US assignees by volume: 35th percentile
by Innovation Score (30.6/100): 7.6
avg claims per patent: +100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R37694 · Foreign Corporation #37,694 · 7 grants

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

GRANTS-MICRO 7 grants
LOWER-Q #37,694/49,997
PHOTO-FINISH Starjet
CPC-FOCUS C09J · 12 areas
INNOV-THIN 30.6/100
CLAIMS-SPARSE 7.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Starjet Technologies 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 Stek’s 30.6 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 7.2 pts (24%) Velocity 6.7 pts (22%) Breadth 12.2 pts (40%) Claim depth 4.5 pts (15%)

Qualcomm Incorporated · highest

85
Stek · this assignee

31
3D Lighting… · lowest

7

What this shows Stek's Innovation Score is 30.6/100 (35th 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 Stek?

Each dot is one of Stek’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). Stek’s own 7.6 claims/patent is at or below the 10.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Stek's grants concentrate

Stek Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 57.1% of grants classified under C09J (ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives). Peak complete grant year is 2019 (2 grants) versus a trough of 1 in 2021. By volume, Stek sits between Starjet Technologies Co., Ltd and Still GmbH.

Stek's three-year grant acceleration

Stek Co., Ltd. shows 3 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.

Starjet

7
State Grid Zhejia…

7
Staubli Bayreuth

7
Stefano Ricci S P…

7
Stella Mccartney

7
Steyr Mannlicher

7
Stichting Maastri…

7
Still

7
Stek ◀

7

What this shows Stek holds 7 patents at rank #37,487, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Stek

By rank, the assignees closest to #37,487 in granted patent volume.

Leaders in C09J (Adhesives)

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

Stek's Innovation Score vs. every tracked assignee

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

31 35th percentile higher than 35% 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

Stek Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	2	28.6%
2021	1	14.3%
2022	1	14.3%
2023	1	14.3%
2024	1	14.3%
2025partial year	1	14.3%

Which technologies does Stek Co., Ltd. patent most?

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 4

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 4

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 2

B60J - Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles 2

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 2

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 1

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 1

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 1

F26B - Drying Solid Materials OR Objects BY Removing Liquid Therefrom 1

G06T - Image Data Processing OR Generation, IN General 1

C08L - Compositions OF Macromolecular Compounds 1

Top 12 of 12 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

Stek Co., Ltd.'s patent record in context - here's where to go next.

Stek Co., Ltd.'s lead technology class is C09J (ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives), 57.1% of its portfolio - see every assignee active in that class. Explore C09J
Ranked #37,694 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Stek Co., Ltd. against Starjet Technologies Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 30.6/100 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.