Where does Ehime Prefecture rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ehime Prefecture ranks #46,411 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 Ehime Prefecture hold?

Ehime Prefecture holds 5 US utility patents granted between 2015 and 2025, spanning 11 technology areas.

What is Ehime Prefecture's Innovation Score?

Ehime Prefecture has an Innovation Score of 19.7 out of 100 (6th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Ehime Prefecture's patent grant rate increasing or decreasing?

Ehime Prefecture's recent grant velocity is -100% 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 Ehime Prefecture's patents?

Ehime Prefecture's patents average 3.0 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 Ehime Prefecture 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

Ehime Prefecture

Q: What technology areas does Ehime Prefecture focus on?

Ehime Prefecture's top technology area is C12P (Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture) with 2 patents, ranking #683 of 1,268 assignees active in that subclass. Grants appear in 11 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 11 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: C12P (Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Ehime ranks #46,411 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 11 technology areas.

#46,411
of 49,997 US assignees by volume: 6th percentile
by Innovation Score (19.7/100): 3.0
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R46411 · Foreign Corporation #46,411 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-LOW · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,411/49,997
PHOTO-FINISH Edge Networking…
CPC-FOCUS C12P · 11 areas
INNOV-LOW 19.7/100
CLAIMS-SPARSE 3.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Edge Networking Systems, 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 Ehime’s 19.7 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 6.2 pts (31%) Velocity 0.0 pts (0%) Breadth 11.7 pts (59%) Claim depth 1.8 pts (9%)

Qualcomm Incorporated · highest

85
Ehime Prefecture · this assignee

20
3D Lighting… · lowest

7

What this shows Ehime's Innovation Score is 19.7/100 (6th 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 Ehime?

Each dot is one of Ehime’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). Ehime’s own 3.0 claims/patent is at or below the 17.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Ehime's grants concentrate

Ehime Prefecture is a focused PatentsView assignee: 11 CPC subclasses with 40% of grants classified under C12P (Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture). By volume, Ehime sits between Edge Networking Systems, LLC and EkoStinger, Inc..

Edge Networking S…

5
Edison Vault

5
Eetrex

5
Effusiontech IP P…

5
Ehwa University-i…

5
Eightfold AI

5
Eko Devices

5
Ekostinger

5
Ehime Prefecture ◀

5

What this shows Ehime holds 5 patents at rank #46,532, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ehime

By rank, the assignees closest to #46,532 in granted patent volume.

Leaders in C12P (Fermentation OR Enzyme-using Processes TO Synthesise A De…)

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

Ehime's Innovation Score vs. every tracked assignee

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

20 6th percentile higher than 6% 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

Ehime Prefecture patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	20.0%
2017	1	20.0%
2025partial year	3	60.0%

Which technologies does Ehime Prefecture patent most?

C12P - Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture 2

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

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 2

C12R - Indexing Scheme Associated With Subclasses C12c - C12q, Relating TO Microorganisms 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 1

B05D - Processes FOR Applying Fluent Materials TO Surfaces, IN General 1

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 1

C23D - Enamelling OF, OR Applying A Vitreous Layer TO, Metals 1

C03C - Chemical Composition OF Glasses, Glazes OR Vitreous ENAMELS; Surface Treatment OF GLASS; Surface Treatment OF Fibres OR Filaments Made From Glass, Minerals OR SLAGS; Joining Glass TO Glass OR Other Materials 1

B28B - Shaping Clay OR Other Ceramic COMPOSITIONS; Shaping SLAG; Shaping Mixtures Containing Cementitious Material, e.g. Plaster 1

Top 11 of 11 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

Ehime Prefecture's patent record in context - here's where to go next.

Ehime Prefecture's lead technology class is C12P (Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture), 40% of its portfolio - see every assignee active in that class. Explore C12P
Ranked #46,411 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ehime Prefecture against Edge Networking Systems, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 19.7/100 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.