PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

National University Corporation Tokai National Higher Education AND Research System

USPTO PatentsView assignee record - 94 granted patents across 103 technology areas, active 2020–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B82Y (SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES).

Explore the portfolio See the ranking
94
Total patents granted
103
CPC technology areas
10.4
Avg claims per patent
-
5-year filing velocity

The verdict

National holds 94 US patents across 103 technology areas, rank #3,854 of 50,000 tracked assignees.

#3,854
of 50,000 US assignees by volume
Top 1%
by Innovation Score (67.0/100)
10.4
avg claims per patent

Portfolio overview

National University Corporation Tokai National Higher Education AND Research System has been granted 94 US utility patents between 2020 and 2025, placing National University Corporation Tokai National Higher Education AND Research System at rank #3,854 across all assignees tracked by PlainPatent. This portfolio spans 103 distinct Cooperative Patent Classification (CPC) subclasses, averaging 10.4 claims per patent with primary concentration in B82Y (SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES). As a Foreign Corporation, National University Corporation Tokai National Higher Education AND Research System is one of the broader-portfolio assignees in the PatentsView dataset. By volume, National sits between MBIT Wireless, Inc. (94 patents, rank #3,850) and SUN Yat-sen University (94 patents, rank #3,858) - the closest US assignees by grant volume. The composite Innovation Score of 67.0/100 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. Historical data spans 2020 through 2025, with 94 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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 Tokai National Higher Education AND Research System's 10.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark National University Corporation Tokai National Higher Education AND Research System against peers pursuing similar technology classes.

Who files at National's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows National holds 94 patents at rank #3,854, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

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

Companies ranked near National

By rank, the assignees closest to #3,854 in granted patent volume.

Leaders in B82Y (Specific USES OR Applications OF Nanostructures)

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, filing velocity, technology breadth, and claim depth (0–100)

67 Top 1% higher than 99% 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%). Below this entry. 60–70: 1,537 US assignees (3%). This entry sits in this band. 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

0102030 202020212022202320242025 23
USPTO utility patent grants by year · 2020–2025

Grants by year

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

View data table
National University Corporation Tokai National Higher Education AND Research System patent grants by year, 2015–2025
Year Patents Granted Share of Period
2020 4 4.3%
2021 5 5.3%
2022 13 13.8%
2023 22 23.4%
2024 27 28.7%
2025 23 24.5%

Which technologies does National University Corporation Tokai National Higher Education AND Research System patent most?

Top 15 of 103 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Diversified
Claim Depth Simple

Where it ranks

Overall rank by patents

#3,854

Across all tracked assignees

Innovation Score

67.0 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 Tokai National Higher Education AND Research System hold?
National University Corporation Tokai National Higher Education AND Research System holds 94 US granted patents filed between 2020 and 2025, spanning 103 technology areas.
What is National University Corporation Tokai National Higher Education AND Research System's Innovation Score?
National University Corporation Tokai National Higher Education AND Research System has an Innovation Score of 67.0 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 Tokai National Higher Education AND Research System focus on?
National University Corporation Tokai National Higher Education AND Research System's top technology area is B82Y (SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES) with 19 patents. The company has filed patents in 103 CPC subclasses total.
Is National University Corporation Tokai National Higher Education AND Research System's patent filing rate increasing or decreasing?
Insufficient historical data is available to calculate a velocity trend for National University Corporation Tokai National Higher Education AND Research System.
What does claim depth mean for National University Corporation Tokai National Higher Education AND Research System's patents?
National University Corporation Tokai National Higher Education AND Research System's patents average 10.4 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the National University Corporation Tokai National Higher Education AND Research System 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.

How to use this portfolio

National's 94 grants land it in the top 1% 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 #3,854 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in B82Y - see who else leads that technology area. B82Y 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.

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

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.