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

National University Corporation Yokohama National University's recent grant velocity is +400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

National University Corporation Yokohama National University's patents average 9.5 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

National University Corporation Yokohama National University

Q: Where does National University Corporation Yokohama National University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), National University Corporation Yokohama National University ranks #5,388 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 Yokohama National 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 - 64 granted patents across 85 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 #5,388 of 49,997 tracked US assignees by granted-patent volume, with 64 patents across 85 technology areas.

#5,388
of 49,997 US assignees by volume: Top 10%
by Innovation Score (52.3/100): 9.5
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5388 · Foreign Corporation #5,388 · 64 grants

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

GRANTS-SMALL 64 grants
UPPER-Q #5,388/49,997
PHOTO-FINISH Narrative Science
CPC-WIDE Y02E · 85 areas
INNOV-PAR 52.3/100
CLAIMS-PAR 9.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Narrative Science 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 National’s 52.3 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 14.4 pts (28%) Velocity 7.2 pts (14%) Breadth 25.0 pts (48%) Claim depth 5.7 pts (11%)

Qualcomm Incorporated · highest

85
Ambit Microsystems… · near

52
AON Risk Services… · near

52
Evolution Engineering · near

52
National University… · this assignee

52
Plaid · near

52
3D Lighting… · lowest

7

What this shows National's Innovation Score is 52.3/100 (top 10% 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 9.5 claims/patent is at or below the 10.5 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.

How National's grant cadence moved

Between 2020–2024, National University Corporation Yokohama National University received 50 grants versus 10 in 2015–2019 (+400% equal-window velocity, top decile growth). Across complete PatentsView years, output peaked in 2021 at 15 grants and bottomed in 2015 at 1. Lead class Y02E accounts for 18.8% of the portfolio across 85 subclasses. Volume neighbours: Nisshinbo Holdings Inc. (#5,384) and Oxilio Ltd (#5,392).

National's three-year grant acceleration

From 2019–2021 to 2022–2024, National University Corporation Yokohama National University moved from 25 to 27 grants (1.08x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Nisshinbo Holdings

64
Narrative Science

64
National Chi Nan…

64
National Products

64
Nokian Tyres

64
Ojjo

64
Otto Bock Healthc…

64
Oxilio

64
National Universi… ◀

64

What this shows National holds 64 patents at rank #5,388, 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 #5,388 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.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for National, neither rank-band nor same-CPC leaders (those blocks stay above). In Y02E (Reduction OF Greenhouse GAS [GHG] Emissions), National ranks #1,089 of 5,963 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (52 here).

Plaid, Inc. 52 Ambit Microsystems (SHANGHAI) Ltd. 52 Evolution Engineering Inc. 52 AON Risk Services, Inc. OF Maryland 52

Similar claim depth

Nearest assignees by average claims per patent (9.5 here).

Eugene Technology Co., Ltd. 9.5 avg Sugino Machine Limited 9.5 avg Sumida Corporation 9.5 avg Korea Institute OF Civil Engineering AND Building Technology 9.5 avg

National's Innovation Score vs. every tracked assignee

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

52 Top 10% higher than 90% 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 Yokohama National University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	1.6%
2016	4	6.3%
2017	2	3.1%
2018	1	1.6%
2019	2	3.1%
2020	8	12.5%
2021	15	23.4%
2022	12	18.8%
2023	5	7.8%
2024	10	15.6%
2025partial year	4	6.3%

Which technologies does National University Corporation Yokohama National University patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 12

C25B - Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor 8

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 8

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 7

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 6

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 6

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 6

G02B - Optical Elements, Systems OR Apparatus 5

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

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 4

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 4

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 4

Y02T - Climate Change Mitigation Technologies Related TO Transportation 4

G06F - Electric Digital Data Processing 3

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 3

Top 15 of 85 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 Yokohama National University's patent record in context - here's where to go next.

National University Corporation Yokohama National University's lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 18.8% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #5,388 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare National University Corporation Yokohama National University against Nisshinbo Holdings Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 52.3/100 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.