Where does National University Corporation Chiba University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), National University Corporation Chiba University ranks #3,505 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

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

National University Corporation Chiba University has an Innovation Score of 53.1 out of 100 (top 9% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does National University Corporation Chiba University focus on?

National University Corporation Chiba University's top technology area is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes) with 37 patents, ranking #584 of 7,163 assignees active in that subclass. Grants appear in 79 CPC subclasses total.

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

National University Corporation Chiba University's recent grant velocity is -31% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

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

National University Corporation Chiba University's patents average 10.7 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 Chiba University

Q: How many patents does National University Corporation Chiba University hold?

National University Corporation Chiba University holds 105 US utility patents granted between 2015 and 2024, spanning 79 technology areas.

Q: How is the National University Corporation Chiba 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 - 105 granted patents across 79 technology areas, recorded in grant years 2015–2024. 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: A61K (Preparations FOR Medical, Dental OR Toiletry Purposes).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, National ranks #3,505 of 49,997 tracked US assignees by granted-patent volume, with 105 patents across 79 technology areas.

#3,505
of 49,997 US assignees by volume: Top 9%
by Innovation Score (53.1/100): 10.7
avg claims per patent: -31%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R3505 · Foreign Corporation #3,505 · 105 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MID 105 grants
TOP-DECILE #3,505/49,997
PHOTO-FINISH LM WP Patent…
CPC-WIDE A61K · 79 areas
INNOV-PAR 53.1/100
CLAIMS-PAR 10.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -31% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: LM WP Patent Holding A/S (±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 53.1 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 16.1 pts (30%) Velocity 5.6 pts (11%) Breadth 25.0 pts (47%) Claim depth 6.4 pts (12%)

Qualcomm Incorporated · highest

85
Automotive Research… · near

53
Atlas Global · near

53
National University… · this assignee

53
STMicroelectronics… · near

53
Waters Ireland · near

53
3D Lighting… · lowest

7

What this shows National's Innovation Score is 53.1/100 (top 9% 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 10.7 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.

How National's grant cadence moved

Between 2020–2024, National University Corporation Chiba University received 43 grants versus 62 in 2015–2019 (-31% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2018 at 17 grants and bottomed in 2024 at 5. Lead class A61K accounts for 35.2% of the portfolio across 79 subclasses. Volume neighbours: LM WP Patent Holding A/S (#3,501) and Radware Ltd. (#3,509).

National's three-year grant acceleration

From 2019–2021 to 2022–2024, National University Corporation Chiba University moved from 32 to 27 grants (0.84x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,676. See the growth leaderboard.

LM WP Patent Hold…

105
Merial

105
Maxeon Solar Pte

105
Nanosys

105
Navitas Semicondu…

105
Prc-desoto Intern…

105
Raydium Semicondu…

105
Radware

105
National Universi… ◀

105

What this shows National holds 105 patents at rank #3,505, 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 #3,505 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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 A61K (Preparations FOR Medical), National ranks #584 of 7,163 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (53 here).

STMicroelectronics Design & Application S.R.O. 53 Atlas Global Technologies LLC 53 Waters Technologies Ireland Limited 53 Automotive Research & Testing Center 53

Similar claim depth

Nearest assignees by average claims per patent (10.7 here).

Shanghai Institute OF Microsystem AND Information Technology Chinese Academy OF Sciences 10.7 avg Screen Holdings Co., Ltd. 10.7 avg Taylor Made Group, LLC 10.7 avg Korea Institute OF Energy Research 10.7 avg

National's Innovation Score vs. every tracked assignee

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

53 Top 9% higher than 91% 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 · 2015–2024

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 Chiba University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	10	9.5%
2016	13	12.4%
2017	6	5.7%
2018	17	16.2%
2019	16	15.2%
2020	6	5.7%
2021	10	9.5%
2022	10	9.5%
2023	12	11.4%
2024	5	4.8%

Which technologies does National University Corporation Chiba University patent most?

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 37

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 31

C07K - Peptides 21

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 21

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 18

C12Q - Measuring OR Testing Processes Involving Enzymes, Nucleic Acids OR Microorganisms ; Compositions OR Test Papers THEREFOR; Processes OF Preparing Such COMPOSITIONS; Condition-responsive Control IN Microbiological OR Enzymological Processes 11

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 9

A61B - DIAGNOSIS; SURGERY; Identification 8

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 8

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 7

C07D - Heterocyclic Compounds 6

H04N - Pictorial Communication, e.g. Television 5

G06T - Image Data Processing OR Generation, IN General 5

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 5

C07C - Acyclic OR Carbocyclic Compounds 5

Top 15 of 79 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 Chiba University's patent record in context - here's where to go next.

National University Corporation Chiba University's lead technology class is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes), 35.2% of its portfolio - see every assignee active in that class. Explore A61K
Ranked #3,505 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare National University Corporation Chiba University against LM WP Patent Holding A/S, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 53.1/100 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.