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Charles River Laboratories International, Inc. (CRL)

NYSE: CRL · Services-Commercial Physical & Biological Research · Wilmington, MA · filing with the SEC since 1999
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Patents

US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026

62 patents granted to the 6 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to Charles River Laboratories International, Inc.’s names, not what it holds today.

Patents granted
62
36 utility, 26 design, 1976 to Dec 31, 2025
Granted in 2025
3
Against 3 in 2024 and 1 in 2023
Applications published
48
6 of them in 2025
Names they are printed under
6
a subsidiary, its own name
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Biotechnology7
Measurement1
Computer technology1
Analysis of biological materials1
Electrical machinery, apparatus, energy1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name6 counted
Charles River Laboratories, Inc. a subsidiary
US, as the owner printed on each patent
50 granted
10 published
Charles River Laboratories, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
23 published
Charles River Laboratories International, Inc. its own name
US, as the owner printed on each patent
6 granted
3 published
Charles River Laboratories International, Inc. its own name
named as the applicant on its applications, in US
0 granted
8 published
Cobra Biologics Ltd. a subsidiary
GB, as the owner printed on each patent
5 granted
3 published
CELSIS LTD. a subsidiary
GB, as the owner printed on each patent
1 granted
1 published
Names not counted (4)
Celsis International B.V.
Most of its patents print GB; this name counts in NL. 5 granted and 2 published under it are not counted.
Celsis International B.V.
Most of its patents print GB; this name counts in NL. 0 granted and 3 published under it are not counted.
Celsis International B.V.
Most of its patents print GB; this name counts in NL. 0 granted and 3 published under it are not counted.
Charles River ULC
Most of its patents print US; this name counts in CA. 0 granted and 1 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Nov 11, 2025D1,101,961CartridgeCharles River Laboratories International, Inc.
Mar 25, 202512,259,383Cho host cell protein assayBiotechnologyCharles River Laboratories International, Inc.
Mar 4, 202512,241,130Detection of infectious agents from environmental air dustBiotechnologyCharles River Laboratories International, Inc.
Dec 3, 202412,158,471Recombinant amebocyte lysate and uses thereofBiotechnologyCharles River Laboratories, Inc.
Dec 3, 202412,156,894Recombinantly-modified adeno-associated virus (rAAV) having improved packaging efficiencyBiotechnologyCharles River Laboratories, Inc.
Nov 5, 202412,135,330Articles and methods involving detection of bindingElectrical machinery, apparatus, energyCharles River Laboratories International, Inc.
Jun 27, 202311,685,773Method for mass humanization of rabbit antibodiesBiotechnologyCharles River Laboratories, Inc.
Mar 8, 202211,268,951CHO host cell protein assayBiotechnologyCharles River Laboratories International, Inc.
Jan 11, 202211,221,335Heat-treated limulus amebocyte lysatesAnalysis of biological materialsCharles River Laboratories, Inc.
Sep 21, 202111,124,581Method for mass humanization of non-human antibodiesComputer technologyCharles River Laboratories, Inc.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Nov 27, 20252025/0362290CHO HOST CELL PROTEIN ASSAYBiotechnologyCharles River Laboratories International, Inc.
Jul 3, 20252025/0220017CUSTOMER ACCESS MANAGEMENT SYSTEM AND METHODDigital communicationCharles River Laboratories International, Inc.
Jun 12, 20252025/0188549DETECTION OF INFECTIOUS AGENTS FROM ENVIRONMENTAL AIR DUSTBiotechnologyCharles River Laboratories International, Inc.
Mar 27, 20252025/0102517ARTICLES AND METHODS INVOLVING DETECTION OF BINDINGElectrical machinery, apparatus, energyCharles River Laboratories International, Inc.
Mar 13, 20252025/0085289RECOMBINANT AMEBOCYTE CLOTTING FACTORS AND USES THEREOFAnalysis of biological materialsCharles River Laboratories, Inc.
Jan 16, 20252025/0020509SPECTROPHOTOMETERS AND RELATED METHODSMeasurementCharles River Laboratories International, Inc.
Sep 5, 20242024/0294943METHOD FOR IMPROVING GENETIC ENGINEERING OF ADOPTIVE CELL THERAPIESBiotechnologyCharles River Laboratories, Inc.
May 9, 20242024/0150703AUTOMATED ENUMERATION SYSTEMBiotechnologyCharles River Laboratories, Inc.
Apr 18, 20242024/0125789HYBRID AMEBOCYTE LYSATE AND USES THEREOFAnalysis of biological materialsCharles River Laboratories, Inc.
Feb 8, 20242024/0044047RADICALLY DIVERSE HUMAN ANTIBODY LIBRARYBiotechnologyCharles River Laboratories, Inc.
What it applied for, 2024 to 2025: Biotechnology 5 · Analysis of biological materials 2 · Measurement 1 · Electrical machinery, apparatus, energy 1 · Digital communication 1.

A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.

SI Assistanton CRL · research, not advice