PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

National University Corporation Yokohama National University

USPTO PatentsView assignee record — 64 granted patents across 85 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION).

Explore the portfolio See the ranking
64
Total patents granted
85
CPC technology areas
9.5
Avg claims per patent
+440%
5-year filing velocity

The verdict

National holds 64 US patents across 85 technology areas — rank #5,388 of 50,000 tracked assignees.

#5,388
of 50,000 US assignees by volume
Top 10%
by Innovation Score (52.3/100)
9.5
avg claims per patent
+440%
filing velocity, last 5 yrs

Portfolio overview

National University Corporation YOKOHAMA National University has been granted 64 US utility patents between 2015 and 2025, placing National University Corporation YOKOHAMA National University at rank #5,388 across all assignees tracked by PlainPatent. This portfolio spans 85 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.5 claims per patent with primary concentration in Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION). As a Foreign Corporation, National University Corporation YOKOHAMA National University is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 52.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 54 grants, compared with 10 in the 2015–2019 window — a +440% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. National University Corporation YOKOHAMA National University's 9.5 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 85 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark National University Corporation YOKOHAMA National University against peers pursuing similar technology classes.

How does National compare?

Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀

patents

What this shows National holds 64 patents — placing it at rank #5,388 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.

Source USPTO PatentsView — granted utility patents As of 2015–2025

National's Innovation Score vs. every tracked assignee

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

52 Top 10% higher than 90% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). Below this entry. 50–60: 5,058 US assignees (10%). This entry sits in this band. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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

05101520 20152016201720182019202020212022202320242025 4
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%
2025 4 6.3%

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

Top 15 of 85 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Multi-domain
Claim Depth Simple
Velocity Accelerating

Where it ranks

Overall rank by patents

#5,388

Across all tracked assignees

Innovation Score

52.3 out of 100

View all rankings →

Data Source

USPTO PatentsView — US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does National University Corporation YOKOHAMA National University hold?
National University Corporation YOKOHAMA National University holds 64 US granted patents filed between 2015 and 2025, spanning 85 technology areas.
What is National University Corporation YOKOHAMA National University's Innovation Score?
National University Corporation YOKOHAMA National University has an Innovation Score of 52.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does National University Corporation YOKOHAMA National University focus on?
National University Corporation YOKOHAMA National University's top technology area is Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION) with 12 patents. The company has filed patents in 85 CPC subclasses total.
Is National University Corporation YOKOHAMA National University's patent filing rate increasing or decreasing?
National University Corporation YOKOHAMA National University's recent filing velocity is +440% compared to the prior five-year period. This indicates accelerating innovation.
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 relatively simple claim structure, typical for focused inventions.
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.

Learn More

How Innovation Score Works

Understand the four dimensions behind the composite score
How to Read Patent Data

Plain-English guide to CPC codes, claims, and metrics
Patent Moat Analysis

How companies use patents as competitive barriers

How to use this portfolio

National's 64 grants land it in the top 10% by Innovation Score — but volume alone doesn't tell you where the strength sits.

  • Read that count against the largest US assignees before treating it as dominance — National ranks #5,388 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in Y02E — see who else leads that technology area. Y02E leaders
  • Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity — not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Explore the patent dataset

Y02E technology

National University Corporation YOKOHAMA National University's primary CPC class — all holders and yearly trends
Top 50 patent holders

See where National University Corporation YOKOHAMA National University ranks among the largest US patent assignees
All technology classes

Browse every CPC technology area by patent activity
How the score works

The four dimensions behind the Innovation Score

Related

All companies → | All technologies → | Rankings →
Data sourced from USPTO PatentsView — official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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