Where does Oita University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Oita University ranks #36,790 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 Oita University hold?

Oita University holds 7 US utility patents granted between 2016 and 2025, spanning 15 technology areas.

What is Oita University's Innovation Score?

Oita University has an Innovation Score of 26.4 out of 100 (20th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Oita University's recent grant velocity is -80% 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 Oita University's patents?

Oita University's patents average 9.3 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 Oita 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

Oita University

Q: What technology areas does Oita University focus on?

Oita University's top technology area is C01B (Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c) with 4 patents. Grants appear in 15 CPC subclasses total.

USPTO PatentsView assignee record - 7 granted patents across 15 technology areas, recorded in grant years 2016–2025. 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: C01B (Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Oita ranks #36,790 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 15 technology areas.

#36,790
of 49,997 US assignees by volume: 20th percentile
by Innovation Score (26.4/100): 9.3
avg claims per patent: -80%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R36790 · Foreign Corporation #36,790 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #36,790/49,997
PHOTO-FINISH Oceana Energy
CPC-FOCUS C01B · 15 areas
INNOV-THIN 26.4/100
CLAIMS-PAR 9.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -80% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Oceana Energy Company (±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.

Qualcomm Incorporated · highest

85
Oita University · this assignee

26
3D Lighting… · lowest

7

What this shows Oita's Innovation Score is 26.4/100 (20th 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.

Where Oita's grants concentrate

Oita University is a focused PatentsView assignee: 15 CPC subclasses with 57.1% of grants classified under C01B (Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c). Peak complete grant year is 2018 (2 grants) versus a trough of 1 in 2016. By volume, Oita sits between Oceana Energy Company and Onpoint Systems, LLC.

Oceana Energy

7
Oceans

7
Ofip

7
Oishi Koseido

7
Olatec Industries

7
Oledcomm

7
Omniscient Imaging

7
Onpoint Systems

7
Oita University ◀

7

What this shows Oita holds 7 patents at rank #36,760, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Oita

By rank, the assignees closest to #36,760 in granted patent volume.

Leaders in C01B (Non-metallic Elements)

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

Oita's Innovation Score vs. every tracked assignee

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

26 20th percentile higher than 20% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Oita University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	14.3%
2017	1	14.3%
2018	2	28.6%
2019	1	14.3%
2020	1	14.3%
2025partial year	1	14.3%

Which technologies does Oita University patent most?

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 4

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 3

H01G - CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type 2

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 2

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

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

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 1

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 1

C22C - Alloys 1

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 1

B01D - Separation 1

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 1

H03K - Pulse Technique 1

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 1

Top 15 of 15 technology areas

Where it ranks

Overall rank by patents

#36,790

of 49,997 tracked assignees

Innovation Score

26.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

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

Oita University's lead technology class is C01B (Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c), 57.1% of its portfolio - see every assignee active in that class. Explore C01B
Ranked #36,790 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Oita University against Oceana Energy Company, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.4/100 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.