USPTO 2015–2025 USPTO PatentsView Foreign Corporation

National University Corporation Tokyo University of Marine Science and Technology

Q: Where does National University Corporation Tokyo University of Marine Science and Technology rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), National University Corporation Tokyo University of Marine Science and Technology ranks #14,804 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Q: How is the National University Corporation Tokyo University of Marine Science and Technology 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 - 20 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, National ranks #14,804 of 49,997 tracked US assignees by granted-patent volume, with 20 patents across 31 technology areas.

#14,804
of 49,997 US assignees by volume: Top 48%
by Innovation Score (36.0/100): 8.0
avg claims per patent: -69%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14804 · Foreign Corporation #14,804 · 20 grants

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

GRANTS-SMALL 20 grants
MID-PACK #14,804/49,997
PHOTO-FINISH National Institute…
CPC-FOCUS Y02E · 31 areas
INNOV-THIN 36.0/100
CLAIMS-PAR 8.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -69% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: National Institute of Biological Sciences, Beijing (±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 National’s 36.0 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 10.5 pts (29%) Velocity 1.0 pts (3%) Breadth 19.7 pts (55%) Claim depth 4.8 pts (13%)

Qualcomm Incorporated · highest

85
National University… · this assignee

36
3D Lighting… · lowest

7

What this shows National's Innovation Score is 36.0/100 (top 48% 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 National?

Each dot is one of National’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). National’s own 8.0 claims/patent is at or below the 17.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where National's grants concentrate

National University Corporation Tokyo University of Marine Science and Technology is a focused PatentsView assignee: 31 CPC subclasses with 35% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2017 (4 grants) versus a trough of 1 in 2015. By volume, National sits between National Institute Of Technology and Neurent Medical Limited.

National's three-year grant acceleration

National University Corporation Tokyo University of Marine Science and Technology shows 1 grants in 2022–2024 against only 7 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.

National Institut…

20
National Institut…

20
National Institut…

20
National Institut…

20
Nautilus True

20
Neosensory

20
Network Performan…

20
Neurent Medical

20
National Universi… ◀

20

What this shows National holds 20 patents at rank #14,804, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near National

By rank, the assignees closest to #14,804 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

National's Innovation Score vs. every tracked assignee

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

36 Top 48% higher than 52% 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

National University Corporation Tokyo University of Marine Science and Technology patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	5.0%
2016	3	15.0%
2017	4	20.0%
2018	1	5.0%
2019	4	20.0%
2020	2	10.0%
2021	1	5.0%
2022	1	5.0%
2025partial year	3	15.0%

Which technologies does National University Corporation Tokyo University of Marine Science and Technology patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 7

H02K - Dynamo-electric Machines 6

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 5

B60W - Conjoint Control OF Vehicle Sub-units OF Different Type OR Different FUNCTION; Control Systems Specially Adapted FOR Hybrid VEHICLES; Road Vehicle Drive Control Systems FOR Purposes NOT Related TO THE Control OF A Particular Sub-unit 4

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 3

B63H - Marine Propulsion OR Steering 2

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 2

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 2

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 2

B60Y - Indexing Scheme Relating TO Aspects Cross-cutting Vehicle Technology 2

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 2

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

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 2

H04B - Transmission 1

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 1

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

National University Corporation Tokyo University of Marine Science and Technology's patent record in context - here's where to go next.

National University Corporation Tokyo University of Marine Science and Technology's lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 35% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #14,804 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare National University Corporation Tokyo University of Marine Science and Technology against National Institute Of Technology, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.0/100 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.