Where does Soken Chemical & Engineering Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Soken Chemical & Engineering Co., Ltd. ranks #13,697 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 Soken Chemical & Engineering Co., Ltd. hold?

Soken Chemical & Engineering Co., Ltd. holds 22 US utility patents granted between 2015 and 2023, spanning 23 technology areas.

What is Soken Chemical & Engineering Co., Ltd.'s Innovation Score?

Soken Chemical & Engineering Co., Ltd. has an Innovation Score of 37.4 out of 100 (top 44% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Soken Chemical & Engineering Co., Ltd.'s patent grant rate increasing or decreasing?

Soken Chemical & Engineering Co., Ltd.'s recent grant velocity is -84% 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 Soken Chemical & Engineering Co., Ltd.'s patents?

Soken Chemical & Engineering Co., Ltd.'s patents average 8.6 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 Soken Chemical & Engineering 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

Soken Chemical & Engineering Co., Ltd.

Q: What technology areas does Soken Chemical & Engineering Co., Ltd. focus on?

Soken Chemical & Engineering Co., Ltd.'s top technology area is 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) with 9 patents, ranking #675 of 4,378 assignees active in that subclass. Grants appear in 23 CPC subclasses total.

USPTO PatentsView assignee record - 22 granted patents across 23 technology areas, recorded in grant years 2015–2023. 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: 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).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Soken ranks #13,697 of 49,997 tracked US assignees by granted-patent volume, with 22 patents across 23 technology areas.

#13,697
of 49,997 US assignees by volume: Top 44%
by Innovation Score (37.4/100): 8.6
avg claims per patent: -84%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R13697 · Foreign Corporation #13,697 · 22 grants

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

GRANTS-SMALL 22 grants
MID-PACK #13,697/49,997
PHOTO-FINISH Smart
CPC-FOCUS B29C · 23 areas
INNOV-THIN 37.4/100
CLAIMS-PAR 8.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -84% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Smart, 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 Soken’s 37.4 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 10.8 pts (29%) Velocity 4.4 pts (12%) Breadth 17.0 pts (45%) Claim depth 5.2 pts (14%)

Qualcomm Incorporated · highest

85
Soken Chemical &… · this assignee

37
3D Lighting… · lowest

7

What this shows Soken's Innovation Score is 37.4/100 (top 44% 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 Soken?

Each dot is one of Soken’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). Soken’s own 8.6 claims/patent is at or below the 11.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Soken's grants concentrate

Soken Chemical & Engineering Co., Ltd. is a focused PatentsView assignee: 23 CPC subclasses with 40.9% of grants classified under 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). Peak complete grant year is 2016 (5 grants) versus a trough of 1 in 2021. By volume, Soken sits between Smart, LLC and SPX Flow, Inc..

Soken's three-year grant acceleration

Soken Chemical & Engineering Co., Ltd. shows 2 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.

Smart

22
Smartlabs

22
Smiths Heimann

22
SMS Meer

22
Soko Kagaku

22
Solid State Stora…

22
Speedgauge

22
SPX Flow

22
Soken Chemical &… ◀

22

What this shows Soken holds 22 patents at rank #13,677, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Soken

By rank, the assignees closest to #13,677 in granted patent volume.

Leaders in B29C (Shaping OR Joining OF Plastics)

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

Soken's Innovation Score vs. every tracked assignee

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

37 Top 44% higher than 56% 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 · 2015–2023

Grants by year

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

View data table

Soken Chemical & Engineering Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	18.2%
2016	5	22.7%
2017	5	22.7%
2018	3	13.6%
2019	2	9.1%
2021	1	4.5%
2023	2	9.1%

Which technologies does Soken Chemical & Engineering Co., Ltd. patent most?

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 9

G03F - Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR; 7

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 6

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 6

C08L - Compositions OF Macromolecular Compounds 5

B82Y - Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures 5

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 4

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 3

G02B - Optical Elements, Systems OR Apparatus 3

H01G - CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type 3

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

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 2

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 2

B29K - Indexing Scheme Associated With Subclasses B29b, B29c OR B29d, Relating TO Moulding Materials OR TO Materials FOR ; Moulds, ; Reinforcements, Fillers OR Preformed Parts, e.g. Inserts 2

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

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

Soken Chemical & Engineering Co., Ltd.'s patent record in context - here's where to go next.

Soken Chemical & Engineering Co., Ltd.'s lead technology class is 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), 40.9% of its portfolio - see every assignee active in that class. Explore B29C
Ranked #13,697 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Soken Chemical & Engineering Co., Ltd. against Smart, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.4/100 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.