Where does Aptose Biosciences Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Aptose Biosciences Inc. ranks #38,841 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 Aptose Biosciences Inc. hold?

Aptose Biosciences Inc. holds 6 US utility patents granted between 2015 and 2022, spanning 9 technology areas.

What is Aptose Biosciences Inc.'s Innovation Score?

Aptose Biosciences Inc. has an Innovation Score of 34.1 out of 100 (46th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Aptose Biosciences Inc. focus on?

Aptose Biosciences Inc.'s top technology area is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes) with 6 patents, ranking #3,449 of 7,163 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

Is Aptose Biosciences Inc.'s patent grant rate increasing or decreasing?

Aptose Biosciences Inc.'s recent grant velocity is +0% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Aptose Biosciences Inc.'s patents?

Aptose Biosciences Inc.'s patents average 22.3 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 Aptose Biosciences 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

Aptose Biosciences Inc.

USPTO PatentsView assignee record - 6 granted patents across 9 technology areas, recorded in grant years 2015–2022. 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, Aptose ranks #38,841 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 9 technology areas.

#38,841
of 49,997 US assignees by volume: 46th percentile
by Innovation Score (34.1/100): 22.3
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R38841 · Foreign Corporation #38,841 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-DENSE · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #38,841/49,997
PHOTO-FINISH Aprinoia Therapeutics
CPC-NARROW A61K · 9 areas
INNOV-THIN 34.1/100
CLAIMS-DENSE 22.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Aprinoia Therapeutics 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 Aptose’s 34.1 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 6.7 pts (20%) Velocity 3.3 pts (10%) Breadth 10.6 pts (31%) Claim depth 13.4 pts (39%)

Qualcomm Incorporated · highest

85
Aptose Biosciences · this assignee

34
3D Lighting… · lowest

7

What this shows Aptose's Innovation Score is 34.1/100 (46th percentile 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 Aptose?

Each dot is one of Aptose’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). Aptose’s own 22.3 claims/patent is ABOVE the 11.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Aptose's grants concentrate

Aptose Biosciences Inc. is a focused PatentsView assignee: 9 CPC subclasses with 100% of grants classified under A61K (Preparations FOR Medical, Dental OR Toiletry Purposes). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2015. By volume, Aptose sits between Aprinoia Therapeutics Limited and AR2 Products LLC.

Aptose's three-year grant acceleration

Aptose Biosciences Inc. shows 1 grants in 2022–2024 against only 2 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.

Aprinoia Therapeu…

6
APT Advanced Poly…

6
Aptamir Therapeut…

6
Apterna

6
Aqua Storage Reta…

6
Aquaoptics

6
Aquasolution

6
AR2 Products

6
Aptose Biosciences ◀

6

What this shows Aptose holds 6 patents at rank #38,669, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Aptose

By rank, the assignees closest to #38,669 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Aptose's Innovation Score vs. every tracked assignee

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

34 46th percentile higher than 46% 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 · 2015–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Aptose Biosciences Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	16.7%
2017	1	16.7%
2018	1	16.7%
2021	2	33.3%
2022	1	16.7%

Which technologies does Aptose Biosciences Inc. patent most?

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 6

C07D - Heterocyclic Compounds 6

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 6

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 2

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 1

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 1

E05B - LOCKS; Accessories THEREFOR; Handcuffs 1

A23B - Preservation OF Foods, Foodstuffs OR Non-alcoholic BEVERAGES; Chemical Ripening OF Fruit OR Vegetables 1

A01N - Preservation OF Bodies OF Humans OR Animals OR Plants OR Parts Thereof ; Biocides, e.g. AS Disinfectants, AS Pesticides OR AS Herbicides ; Pest Repellants OR ATTRACTANTS; Plant Growth Regulators 1

Top 9 of 9 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

Aptose Biosciences Inc.'s patent record in context - here's where to go next.

Aptose Biosciences Inc.'s lead technology class is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes), 100% of its portfolio - see every assignee active in that class. Explore A61K
Ranked #38,841 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Aptose Biosciences Inc. against Aprinoia Therapeutics Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 34.1/100 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.