Where does Yamagata University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Yamagata University ranks #13,806 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 Yamagata University hold?

Yamagata University holds 22 US utility patents granted between 2015 and 2025, spanning 31 technology areas.

What is Yamagata University's Innovation Score?

Yamagata University has an Innovation Score of 43.0 out of 100 (top 29% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Yamagata University focus on?

Yamagata University's top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 11 patents, ranking #1,329 of 7,863 assignees active in that subclass. Grants appear in 31 CPC subclasses total.

Is Yamagata University's patent grant rate increasing or decreasing?

Yamagata University's recent grant velocity is -9% 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 Yamagata University's patents?

Yamagata University's patents average 9.7 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 Yamagata 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 2015–2025 USPTO PatentsView Foreign Corporation

Yamagata University

USPTO PatentsView assignee record - 22 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: 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, Yamagata ranks #13,806 of 49,997 tracked US assignees by granted-patent volume, with 22 patents across 31 technology areas.

#13,806
of 49,997 US assignees by volume: Top 29%
by Innovation Score (43.0/100): 9.7
avg claims per patent: -9%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R13806 · Foreign Corporation #13,806 · 22 grants

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

GRANTS-SMALL 22 grants
MID-PACK #13,806/49,997
PHOTO-FINISH Xergy
CPC-FOCUS G01N · 31 areas
INNOV-PAR 43.0/100
CLAIMS-PAR 9.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -9% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Xergy Inc. (±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 Yamagata’s 43.0 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 (25%) Velocity 6.7 pts (16%) Breadth 19.7 pts (46%) Claim depth 5.8 pts (13%)

Qualcomm Incorporated · highest

85
Yamagata University · this assignee

43
3D Lighting… · lowest

7

What this shows Yamagata's Innovation Score is 43.0/100 (top 29% 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 Yamagata?

Each dot is one of Yamagata’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). Yamagata’s own 9.7 claims/patent is ABOVE the 9.6 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Yamagata's grants concentrate

Yamagata University is a focused PatentsView assignee: 31 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 2018 (4 grants) versus a trough of 1 in 2015. By volume, Yamagata sits between Xergy Inc. and Zhongshan SHI Songlin Furniture Co., Ltd..

Yamagata's three-year grant acceleration

Yamagata University shows 5 grants in 2022–2024 against only 5 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.

Xergy

22
Xiamen Innovax Bi…

22
Xiamen Sheep Anti…

22
Y-brain

22
Yangtze River Pha…

22
Yeti Cycling

22
Yong Kang Aijiu I…

22
Zhongshan SHI Son…

22
Yamagata Universi… ◀

22

What this shows Yamagata holds 22 patents at rank #13,802, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Yamagata

By rank, the assignees closest to #13,802 in granted patent volume.

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

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

Yamagata's Innovation Score vs. every tracked assignee

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

43 Top 29% higher than 71% 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

Yamagata University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	4.5%
2016	3	13.6%
2017	3	13.6%
2018	4	18.2%
2020	4	18.2%
2021	1	4.5%
2022	2	9.1%
2023	3	13.6%
2025partial year	1	4.5%

Which technologies does Yamagata University patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 11

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 5

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 4

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 4

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 4

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 4

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 3

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 3

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 3

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

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

C08L - Compositions OF Macromolecular Compounds 2

B60C - Vehicle TYRES; Tyre INFLATION; Tyre CHANGING; Connecting Valves TO Inflatable Elastic Bodies IN GENERAL; Devices OR Arrangements Related TO Tyres 2

C07C - Acyclic OR Carbocyclic Compounds 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

Yamagata University's patent record in context - here's where to go next.

Yamagata University'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 #13,806 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Yamagata University against Xergy Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.0/100 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.