Where does Hirotsu BIO Science Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hirotsu BIO Science Inc. ranks #31,918 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Hirotsu BIO Science Inc. hold?

Hirotsu BIO Science Inc. holds 8 US utility patents granted between 2021 and 2025, spanning 5 technology areas.

What is Hirotsu BIO Science Inc.'s Innovation Score?

Hirotsu BIO Science Inc. has an Innovation Score of 40.4 out of 100 (top 36% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hirotsu BIO Science Inc. focus on?

Hirotsu BIO Science Inc.'s top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 8 patents, ranking #1,791 of 7,863 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

Is Hirotsu BIO Science Inc.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Hirotsu BIO Science Inc..

What does claim depth mean for Hirotsu BIO Science Inc.'s patents?

Hirotsu BIO Science Inc.'s patents average 8.1 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.

How is the Hirotsu BIO Science Inc. 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 2015–2025 USPTO PatentsView Foreign Corporation

Hirotsu BIO Science Inc.

USPTO PatentsView assignee record - 8 granted patents across 5 technology areas, recorded in grant years 2021–2025. 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: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hirotsu ranks #31,918 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 5 technology areas.

#31,918
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.4/100): 8.1
avg claims per patent

USPTO PatentsView assignee plate

Corpus R31918 · Foreign Corporation #31,918 · 8 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 8 grants
MID-PACK #31,918/49,997
PHOTO-FINISH Hill & Smith
CPC-NARROW G01N · 5 areas
INNOV-PAR 40.4/100
CLAIMS-PAR 8.1 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Hill & Smith Limited (±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 Hirotsu’s 40.4 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 7.6 pts (19%) Velocity 20.0 pts (50%) Breadth 7.9 pts (20%) Claim depth 4.9 pts (12%)

Qualcomm Incorporated · highest

85
Calithera Biosciences · near

40
Fluid Equipment… · near

40
Hirotsu BIO Science · this assignee

40
Luxsentek Microelect… · near

40
Personics Holdings · near

40
3D Lighting… · lowest

7

What this shows Hirotsu's Innovation Score is 40.4/100 (top 36% 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 Hirotsu?

Each dot is one of Hirotsu’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). Hirotsu’s own 8.1 claims/patent is at or below the 17.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Hirotsu vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Hirotsu's grants concentrate

Hirotsu BIO Science Inc. is a focused PatentsView assignee: 5 CPC subclasses with 100% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2022 (3 grants) versus a trough of 1 in 2021. By volume, Hirotsu sits between Hill & Smith Limited and Hogue, Inc..

Hirotsu's three-year grant acceleration

Hirotsu BIO Science Inc. shows 6 grants in 2022–2024 against only 1 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Hill & Smith

8
Hilverdaflorist B…

8
Himax Analogic

8
Hipra Scientific…

8
Hmicro

8
Hntb

8
Hogan Lovells Int…

8
Hogue

8
Hirotsu BIO Scien… ◀

8

What this shows Hirotsu holds 8 patents at rank #31,888, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hirotsu

By rank, the assignees closest to #31,888 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

Other assignees with the most granted patents in Hirotsu's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Hirotsu, neither rank-band nor same-CPC leaders (those blocks stay above). In G01N (Investigating OR Analysing Materials BY Determining Their…), Hirotsu ranks #1,791 of 7,863 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (40 here).

Luxsentek Microelectronics Corp. 40 Fluid Equipment Development Company, LLC 40 Calithera Biosciences, Inc. 40 Personics Holdings, LLC 40

Hirotsu's Innovation Score vs. every tracked assignee

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

40 Top 36% higher than 64% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Hirotsu BIO Science Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	12.5%
2022	3	37.5%
2023	2	25.0%
2024	1	12.5%
2025partial year	1	12.5%

Which technologies does Hirotsu BIO Science Inc. patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 8

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 3

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 1

G16H - Healthcare Informatics, i.e. Information AND Communication Technology [ICT] Specially Adapted FOR THE Handling OR Processing OF Medical OR Healthcare Data 1

G06T - Image Data Processing OR Generation, IN General 1

Top 5 of 5 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

Hirotsu BIO Science Inc.'s patent record in context - here's where to go next.

Hirotsu BIO Science Inc.'s lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 100% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #31,918 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hirotsu BIO Science Inc. against Hill & Smith Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.4/100 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.