Where does Public University Corporation Yokohama City University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Public University Corporation Yokohama City University ranks #7,181 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Is Public University Corporation Yokohama City University's patent grant rate increasing or decreasing?

Public University Corporation Yokohama City University's recent grant velocity is +53% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Public University Corporation Yokohama City University's patents?

Public University Corporation Yokohama City University's patents average 10.5 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Public University Corporation Yokohama City University

Q: How many patents does Public University Corporation Yokohama City University hold?

Public University Corporation Yokohama City University holds 46 US utility patents granted between 2015 and 2025, spanning 31 technology areas.

Q: What is Public University Corporation Yokohama City University's Innovation Score?

Public University Corporation Yokohama City University has an Innovation Score of 44.1 out of 100 (top 26% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Q: What technology areas does Public University Corporation Yokohama City University focus on?

Public University Corporation Yokohama City University's top technology area is C12N (Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media) with 22 patents, ranking #487 of 4,144 assignees active in that subclass. Grants appear in 31 CPC subclasses total.

Q: How is the Public University Corporation Yokohama City University 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 PatentsView assignee record - 46 granted patents across 31 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: C12N (Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Public ranks #7,181 of 49,997 tracked US assignees by granted-patent volume, with 46 patents across 31 technology areas.

#7,181
of 49,997 US assignees by volume: Top 26%
by Innovation Score (44.1/100): 10.5
avg claims per patent: +53%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7181 · Foreign Corporation #7,181 · 46 grants

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

GRANTS-SMALL 46 grants
UPPER-Q #7,181/49,997
PHOTO-FINISH Ping Identity
CPC-FOCUS C12N · 31 areas
INNOV-PAR 44.1/100
CLAIMS-PAR 10.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +53% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Ping Identity Corporation (±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 Public’s 44.1 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 13.3 pts (30%) Velocity 4.8 pts (11%) Breadth 19.7 pts (45%) Claim depth 6.3 pts (14%)

Qualcomm Incorporated · highest

85
Bandwidth · near

44
Clearside Biomedical · near

44
CyberArk Software · near

44
Public University… · this assignee

44
Tachi-s · near

44
3D Lighting… · lowest

7

What this shows Public's Innovation Score is 44.1/100 (top 26% 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 Public?

Each dot is one of Public’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). Public’s own 10.5 claims/patent is at or below the 12.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Public's grants concentrate

Public University Corporation Yokohama City University is a focused PatentsView assignee: 31 CPC subclasses with 47.8% of grants classified under C12N (Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media). Peak complete grant year is 2020 (8 grants) versus a trough of 2 in 2018. By volume, Public sits between Ping Identity Corporation and Raytech Optical (Changzhou) Co., Ltd.

Public's three-year grant acceleration

Public University Corporation Yokohama City University shows 13 grants in 2022–2024 against only 18 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.

Ping Identity

46
Pitney Bowes

46
Precitec & KG

46
Pretty Star Store

46
Pulse Secure

46
Pyeong Hwa Automo…

46
Reynolds Presto P…

46
Raytech Optical (…

46
Public University… ◀

46

What this shows Public holds 46 patents at rank #7,180, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Public

By rank, the assignees closest to #7,180 in granted patent volume.

Leaders in C12N (Microorganisms OR Enzymes)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Public, neither rank-band nor same-CPC leaders (those blocks stay above). In C12N (Microorganisms OR Enzymes), Public ranks #487 of 4,144 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (44 here).

Clearside Biomedical, Inc. 44 CyberArk Software Ltd. 44 Tachi-s Co., Ltd. 44 Bandwidth Inc. 44

Public's Innovation Score vs. every tracked assignee

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

44 Top 26% higher than 74% 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

Public University Corporation Yokohama City University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	6.5%
2016	4	8.7%
2017	3	6.5%
2018	2	4.3%
2019	5	10.9%
2020	8	17.4%
2021	5	10.9%
2022	6	13.0%
2023	4	8.7%
2024	3	6.5%
2025partial year	3	6.5%

Which technologies does Public University Corporation Yokohama City University patent most?

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 22

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 16

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 14

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 11

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 9

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 8

A01K - Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals 5

C07K - Peptides 4

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 4

H01J - Electric Discharge Tubes OR Discharge Lamps 3

G06T - Image Data Processing OR Generation, IN General 3

C07C - Acyclic OR Carbocyclic Compounds 3

C07D - Heterocyclic Compounds 3

A61B - DIAGNOSIS; SURGERY; Identification 3

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy 2

Top 15 of 31 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

Public University Corporation Yokohama City University's patent record in context - here's where to go next.

Public University Corporation Yokohama City University's lead technology class is C12N (Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media), 47.8% of its portfolio - see every assignee active in that class. Explore C12N
Ranked #7,181 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Public University Corporation Yokohama City University against Ping Identity Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.1/100 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.