Where does Calithera Biosciences, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Calithera Biosciences, Inc. ranks #10,569 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 Calithera Biosciences, Inc. hold?

Calithera Biosciences, Inc. holds 29 US utility patents granted between 2017 and 2022, spanning 13 technology areas.

What is Calithera Biosciences, Inc.'s Innovation Score?

Calithera Biosciences, 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 Calithera Biosciences, Inc. focus on?

Calithera Biosciences, Inc.'s top technology area is A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations) with 23 patents, ranking #848 of 6,058 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

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

Calithera Biosciences, Inc.'s recent grant velocity is +42% 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 Calithera Biosciences, Inc.'s patents?

Calithera Biosciences, Inc.'s patents average 30.0 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 Calithera 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 US Corporation

Calithera Biosciences, Inc.

USPTO PatentsView assignee record - 29 granted patents across 13 technology areas, recorded in grant years 2017–2022. 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: A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Calithera ranks #10,569 of 49,997 tracked US assignees by granted-patent volume, with 29 patents across 13 technology areas.

#10,569
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.4/100): 30.0
avg claims per patent: +42%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R10569 · US Corporation #10,569 · 29 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-DENSE · TYPE-USCORP · VEL-UP · BOOK-FULL

GRANTS-SMALL 29 grants
UPPER-Q #10,569/49,997
PHOTO-FINISH C3 Nano
CPC-FOCUS A61P · 13 areas
INNOV-PAR 40.4/100
CLAIMS-DENSE 30.0 claims/avg
TYPE-USCORP US Corporation
VEL-UP +42% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: C3 Nano, Inc. (±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 Calithera’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 11.7 pts (29%) Velocity 0.9 pts (2%) Breadth 12.7 pts (32%) Claim depth 15.0 pts (37%)

Qualcomm Incorporated · highest

85
Calithera Biosciences · this assignee

40
Fluid Equipment… · near

40
GE Healthcare AS · near

40
Mesoblast Internatio… · near

40
Personics Holdings · near

40
3D Lighting… · lowest

7

What this shows Calithera'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 Calithera?

Each dot is one of Calithera’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). Calithera’s own 30.0 claims/patent is ABOVE the 13.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Calithera's grants concentrate

Calithera Biosciences, Inc. is a focused PatentsView assignee: 13 CPC subclasses with 79.3% of grants classified under A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations). Peak complete grant year is 2019 (9 grants) versus a trough of 1 in 2017. By volume, Calithera sits between C.N.R.S. and China Communication Technology Co., Ltd..

Calithera's three-year grant acceleration

From 2019–2021 to 2022–2024, Calithera Biosciences, Inc. moved from 23 to 3 grants (0.13x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

C N R S

29
C3 Nano

29
C4 Therapeutics

29
Calgon Carbon

29
Cbrite

29
Celltrion

29
Centre Leon Berard

29
China Communicati…

29
Calithera Bioscie… ◀

29

What this shows Calithera holds 29 patents at rank #10,570, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Calithera

By rank, the assignees closest to #10,570 in granted patent volume.

Leaders in A61P (Specific Therapeutic Activity OF Chemical Compounds OR Me…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Calithera, neither rank-band nor same-CPC leaders (those blocks stay above). In A61P (Specific Therapeutic Activity OF Chemical Compounds OR Me…), Calithera ranks #848 of 6,058 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (40 here).

Fluid Equipment Development Company, LLC 40 Personics Holdings, LLC 40 Mesoblast International Sàrl 40 GE Healthcare AS 40

Calithera'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 · 2017–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Calithera Biosciences, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	3.4%
2018	2	6.9%
2019	9	31.0%
2020	6	20.7%
2021	8	27.6%
2022	3	10.3%

Which technologies does Calithera Biosciences, Inc. patent most?

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 23

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 20

C07K - Peptides 10

C07D - Heterocyclic Compounds 10

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 8

C07H - SUGARS; Derivatives THEREOF; NUCLEOSIDES; NUCLEOTIDES; Nucleic Acids 5

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 5

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 3

C07C - Acyclic OR Carbocyclic Compounds 3

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy 2

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 1

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 1

A61B - DIAGNOSIS; SURGERY; Identification 1

Top 13 of 13 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

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

Calithera Biosciences, Inc.'s lead technology class is A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations), 79.3% of its portfolio - see every assignee active in that class. Explore A61P
Ranked #10,569 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Calithera Biosciences, Inc. against C.N.R.S., 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.