USPTO 2015–2025 USPTO PatentsView Foreign Corporation

National University Corporation Hokkaido University

USPTO PatentsView assignee record - 262 granted patents across 140 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

262

Total patents granted

140

CPC technology areas

10.4

Avg claims per patent

-13%

5-year filing velocity

The verdict

National holds 262 US patents across 140 technology areas, rank #1,581 of 50,000 tracked assignees.

#1,581
of 50,000 US assignees by volume: Top 4%
by Innovation Score (58.7/100): 10.4
avg claims per patent: -13%
filing velocity, last 5 yrs

Portfolio overview

National University Corporation Hokkaido University has been granted 262 US utility patents between 2015 and 2025, placing National University Corporation Hokkaido University at rank #1,581 across all assignees tracked by PlainPatent. This portfolio spans 140 distinct Cooperative Patent Classification (CPC) subclasses, averaging 10.4 claims per patent with primary concentration in A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES). As a Foreign Corporation, National University Corporation Hokkaido University is one of the broader-portfolio assignees in the PatentsView dataset. By volume, National sits between Hisense International Co., Ltd. (262 patents, rank #1,577) and Ememory Technology Inc. (261 patents, rank #1,585) - the closest US assignees by grant volume. The composite Innovation Score of 58.7/100 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 122 grants, compared with 140 in the 2015–2019 window, a -13% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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 Hokkaido University'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 Hokkaido University against peers pursuing similar technology classes.

Hisense Internati…

262
Toyota CHUO Kenky…

262
Laitram L L C

262
Microjet Technolo…

262
The Lubrizol

262
Unisantis Singapo…

262
National Universi… ◀

262
Beth Israel Deaco…

261
Ememory Technology

261

What this shows National holds 262 patents at rank #1,581, 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 #1,581 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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)

59 Top 4% higher than 96% of 50,000 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 Hokkaido University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	39	14.9%
2016	28	10.7%
2017	27	10.3%
2018	21	8.0%
2019	25	9.5%
2020	17	6.5%
2021	17	6.5%
2022	29	11.1%
2023	27	10.3%
2024	17	6.5%
2025	15	5.7%

Which technologies does National University Corporation Hokkaido University patent most?

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 47

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 39

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 37

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 32

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 31

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 29

A61B - DIAGNOSIS; SURGERY; IDENTIFICATION 24

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 21

C07K - PEPTIDES 20

C07D - HETEROCYCLIC COMPOUNDS 20

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 19

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY 18

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 18

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 18

B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES 16

Top 15 of 140 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#1,581

Across all tracked assignees

Innovation Score

58.7 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 Hokkaido University hold?

National University Corporation Hokkaido University holds 262 US granted patents filed between 2015 and 2025, spanning 140 technology areas.

What is National University Corporation Hokkaido University's Innovation Score?

National University Corporation Hokkaido University has an Innovation Score of 58.7 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 Hokkaido University focus on?

National University Corporation Hokkaido University's top technology area is A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES) with 47 patents. The company has filed patents in 140 CPC subclasses total.

Is National University Corporation Hokkaido University's patent filing rate increasing or decreasing?

National University Corporation Hokkaido University's recent filing velocity is -13% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

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

National University Corporation Hokkaido University's patents average 10.4 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the National University Corporation Hokkaido 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.

How to use this portfolio

National's 262 grants land it in the top 4% 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 #1,581 of 50,000. Top 50 holders
Most of this portfolio concentrates in A61K - see who else leads that technology area. A61K 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

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.