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

According to USPTO PatentsView (2015–2025 granted utility patents), Sekisui Polymatech Co., Ltd. ranks #7,924 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 Sekisui Polymatech Co., Ltd. hold?

Sekisui Polymatech Co., Ltd. holds 41 US utility patents granted between 2019 and 2025, spanning 42 technology areas.

What is Sekisui Polymatech Co., Ltd.'s Innovation Score?

Sekisui Polymatech Co., Ltd. has an Innovation Score of 54.5 out of 100 (top 8% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sekisui Polymatech Co., Ltd. focus on?

Sekisui Polymatech Co., Ltd.'s top technology area is C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients) with 15 patents, ranking #219 of 1,963 assignees active in that subclass. Grants appear in 42 CPC subclasses total.

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

Sekisui Polymatech Co., Ltd.'s recent grant velocity is +3800% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

Sekisui Polymatech Co., Ltd.'s patents average 12.6 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 Sekisui Polymatech 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

Sekisui Polymatech Co., Ltd.

USPTO PatentsView assignee record - 41 granted patents across 42 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: C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sekisui ranks #7,924 of 49,997 tracked US assignees by granted-patent volume, with 41 patents across 42 technology areas.

#7,924
of 49,997 US assignees by volume: Top 8%
by Innovation Score (54.5/100): 12.6
avg claims per patent: +3800%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7924 · Foreign Corporation #7,924 · 41 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 41 grants
UPPER-Q #7,924/49,997
PHOTO-FINISH Rowan University
CPC-WIDE C08K · 42 areas
INNOV-PAR 54.5/100
CLAIMS-RICH 12.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +3800% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Rowan University (±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 Sekisui’s 54.5 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 12.9 pts (24%) Velocity 11.1 pts (20%) Breadth 22.9 pts (42%) Claim depth 7.5 pts (14%)

Qualcomm Incorporated · highest

85
Guangzhou Shiyuan… · near

54
Konecranes Global · near

54
Mettler-Toledo… · near

54
Sekisui Polymatech · this assignee

54
The University of… · near

54
3D Lighting… · lowest

7

What this shows Sekisui's Innovation Score is 54.5/100 (top 8% 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 Sekisui?

Each dot is one of Sekisui’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). Sekisui’s own 12.6 claims/patent is at or below the 12.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sekisui's grants concentrate

Sekisui Polymatech Co., Ltd. is a focused PatentsView assignee: 42 CPC subclasses with 36.6% of grants classified under C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients). Peak complete grant year is 2023 (10 grants) versus a trough of 1 in 2019. By volume, Sekisui sits between Rowan University and SLM Solutions Group AG.

Sekisui's three-year grant acceleration

Sekisui Polymatech Co., Ltd. shows 25 grants in 2022–2024 against only 15 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.

Rowan University

41
Safran Power Units

41
Sasol Technology…

41
Sciocs

41
Shenzhen Voxtech

41
Shya Hsin Packagi…

41
SK keyfoundry

41
SLM Solutions Gro…

41
Sekisui Polymatech ◀

41

What this shows Sekisui holds 41 patents at rank #7,921, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sekisui

By rank, the assignees closest to #7,921 in granted patent volume.

Leaders in C08K (Use of inorganic or non-macromolecular organic substances…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sekisui, neither rank-band nor same-CPC leaders (those blocks stay above). In C08K (Use of inorganic or non-macromolecular organic substances…), Sekisui ranks #219 of 1,963 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (54 here).

Mettler-Toledo International Trading (Shanghai) Co., Ltd. 54 The University of Nottingham 54 Guangzhou Shiyuan Electronic Technology Company Limited 54 Konecranes Global Corporation 54

Sekisui's Innovation Score vs. every tracked assignee

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

54 Top 8% higher than 92% 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

Sekisui Polymatech Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	2.4%
2020	8	19.5%
2021	6	14.6%
2022	6	14.6%
2023	10	24.4%
2024	9	22.0%
2025partial year	1	2.4%

Which technologies does Sekisui Polymatech Co., Ltd. patent most?

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 15

H01L - Semiconductor Devices NOT Covered BY Class H10 15

C08L - Compositions OF Macromolecular Compounds 14

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 11

G06F - Electric Digital Data Processing 11

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 11

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 11

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 8

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 7

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 6

H03K - Pulse Technique 5

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 5

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 5

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 4

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 4

Top 15 of 42 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

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

Sekisui Polymatech Co., Ltd.'s lead technology class is C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients), 36.6% of its portfolio - see every assignee active in that class. Explore C08K
Ranked #7,924 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sekisui Polymatech Co., Ltd. against Rowan University, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 54.5/100 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.