Where does Eiken Kagaku Kabushiki Kaisha rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Eiken Kagaku Kabushiki Kaisha ranks #11,631 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 Eiken Kagaku Kabushiki Kaisha hold?

Eiken Kagaku Kabushiki Kaisha holds 26 US utility patents granted between 2015 and 2025, spanning 14 technology areas.

What is Eiken Kagaku Kabushiki Kaisha's Innovation Score?

Eiken Kagaku Kabushiki Kaisha 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%).

What technology areas does Eiken Kagaku Kabushiki Kaisha focus on?

Eiken Kagaku Kabushiki Kaisha's top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 13 patents, ranking #1,156 of 7,863 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

Is Eiken Kagaku Kabushiki Kaisha's patent grant rate increasing or decreasing?

Eiken Kagaku Kabushiki Kaisha's recent grant velocity is +9% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Eiken Kagaku Kabushiki Kaisha's patents?

Eiken Kagaku Kabushiki Kaisha's patents average 9.0 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 Eiken Kagaku Kabushiki Kaisha 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

Eiken Kagaku Kabushiki Kaisha

USPTO PatentsView assignee record - 26 granted patents across 14 technology areas, recorded in grant years 2015–2025. 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: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Eiken ranks #11,631 of 49,997 tracked US assignees by granted-patent volume, with 26 patents across 14 technology areas.

#11,631
of 49,997 US assignees by volume: Top 43%
by Innovation Score (37.8/100): 9.0
avg claims per patent: +9%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11631 · Foreign Corporation #11,631 · 26 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-SMALL 26 grants
UPPER-Q #11,631/49,997
PHOTO-FINISH Department of…
CPC-FOCUS G01N · 14 areas
INNOV-THIN 37.8/100
CLAIMS-PAR 9.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +9% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Department of Biotechnology (±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 Eiken’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 11.4 pts (30%) Velocity 7.8 pts (21%) Breadth 13.2 pts (35%) Claim depth 5.4 pts (14%)

Qualcomm Incorporated · highest

85
Eiken Kagaku · this assignee

38
Fuji Shoji · near

38
Keltronix · near

38
Rivada Research · near

38
THE United States… · near

38
3D Lighting… · lowest

7

What this shows Eiken'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 Eiken?

Each dot is one of Eiken’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). Eiken’s own 9.0 claims/patent is at or below the 12.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Eiken's grants concentrate

Eiken Kagaku Kabushiki Kaisha is a focused PatentsView assignee: 14 CPC subclasses with 50% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2022 (6 grants) versus a trough of 1 in 2017. By volume, Eiken sits between Department of Biotechnology and Emed Labs, LLC.

Eiken's three-year grant acceleration

Eiken Kagaku Kabushiki Kaisha shows 7 grants in 2022–2024 against only 6 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.

Department of Bio…

26
Design Infini

26
Ecobee

26
Efficient Energy

26
Ejot & KG

26
Elbex Video

26
Elementis Special…

26
Emed Labs

26
Eiken Kagaku ◀

26

What this shows Eiken holds 26 patents at rank #11,630, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Eiken

By rank, the assignees closest to #11,630 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Eiken, neither rank-band nor same-CPC leaders (those blocks stay above). In G01N (Investigating OR Analysing Materials BY Determining Their…), Eiken ranks #1,156 of 7,863 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (38 here).

Rivada Research, LLC 38 Fuji Shoji Co., Ltd. 38 Keltronix, Inc. 38 THE United States OF America, AS Represented BY THE Secretary, Department OF Health AND Human Services, Office OF Technology TRANSFER—NATIONAL Institutes OF Health 38

Eiken'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 · 2015–2025

Grants by year

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

View data table

Eiken Kagaku Kabushiki Kaisha patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	11.5%
2016	2	7.7%
2017	1	3.8%
2018	4	15.4%
2019	1	3.8%
2020	2	7.7%
2021	3	11.5%
2022	6	23.1%
2023	1	3.8%
2025partial year	3	11.5%

Which technologies does Eiken Kagaku Kabushiki Kaisha patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 13

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 9

C12Q - Measuring OR Testing Processes Involving Enzymes, Nucleic Acids OR Microorganisms ; Compositions OR Test Papers THEREFOR; Processes OF Preparing Such COMPOSITIONS; Condition-responsive Control IN Microbiological OR Enzymological Processes 7

C07K - Peptides 6

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 5

A61B - DIAGNOSIS; SURGERY; Identification 3

Y02A - Technologies FOR Adaptation TO Climate Change 2

B01D - Separation 2

E03D - Water-closets OR Urinals With Flushing DEVICES; Flushing Valves Therefor 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

B05B - Spraying APPARATUS; Atomising APPARATUS; Nozzles 1

C12M - Apparatus FOR Enzymology OR MICROBIOLOGY; Apparatus FOR Culturing Microorganisms FOR Producing Biomass, FOR Growing Cells OR FOR Obtaining Fermentation OR Metabolic Products, i.e. Bioreactors OR Fermenters 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

B67B - Applying Closure Members TO Bottles Jars, OR Similar CONTAINERS; Opening Closed Containers 1

Top 14 of 14 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

Eiken Kagaku Kabushiki Kaisha's patent record in context - here's where to go next.

Eiken Kagaku Kabushiki Kaisha's lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 50% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #11,631 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Eiken Kagaku Kabushiki Kaisha against Department of Biotechnology, 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.