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Markel Group Inc. (MKL)

NYSE: MKL · Fire, Marine & Casualty Insurance · Glen Allen, VA · 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

46 patents granted to the 7 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 Markel Group Inc.’s names, not what it holds today.

Patents granted
46
46 utility, 1976 to Dec 31, 2025
Granted in 2025
1
Against none in 2024 and 4 in 2023
Applications published
26
1 of them in 2025
Names they are printed under
7
a subsidiary, a former name
By yearGrantedApplications published
'10'11'12'13'14'15'16'17'18'20'21'22'23'24'25
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
Transport6
Mechanical elements2
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name7 counted
Cottrell, Inc. a subsidiary
US, as the owner printed on each patent
23 granted
7 published
Markel Corporation a former name
US, as the owner printed on each patent
19 granted
10 published
CapTech Ventures, Inc. a subsidiary
US, as the owner printed on each patent
1 granted
3 published
Cottrell, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
4 published
Metromont Corporation a subsidiary
US, as the owner printed on each patent
2 granted
1 published
CapTech Ventures, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
1 published
ELLICOTT DREDGE ENTERPRISES, LLC a subsidiary
US, as the owner printed on each patent
1 granted
0 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Mar 25, 202512,258,032System and method for cargo load height observationTransportCottrell, Inc.
Sep 12, 202311,752,914Trailer system for transport of unit load devicesTransportCottrell, Inc.
May 30, 202311,660,996Bridge apparatus and system for vehicle transportTransportCottrell, Inc.
Mar 21, 202311,608,001Retracting step systemTransportCottrell, Inc.
Jan 10, 202311,548,429Ratchet deviceMechanical elementsCottrell, Inc.
Jul 12, 202211,383,633Ratchet deviceMechanical elementsCottrell, Inc.
Apr 5, 202211,292,392Retracting step systemTransportCottrell, Inc.
Jul 13, 202111,059,411Bridge apparatus and system for vehicle transportTransportCottrell, Inc.
Oct 16, 201810,099,596Riser apparatus and system for vehicle transportTransportCottrell, Inc.
Mar 6, 20189,909,550Remote start/stop system and method for use with vehicle transport trailersTransportCottrell, Inc.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Jul 3, 20252025/0214603SYSTEM AND METHOD FOR CARGO LOAD HEIGHT OBSERVATIONTransportCottrell, Inc.
Jul 4, 20242024/0220673SYSTEM, DEVICE AND METHOD FOR INSTALLATION PROJECT VISUALIZATION AND APPROVALComputer technologyCapTech Ventures, Inc.
Apr 6, 20232023/0105738SYSTEM AND METHOD FOR CARGO LOAD HEIGHT OBSERVATIONTransportCottrell, Inc. · patent 12,258,032 granted from it
Nov 17, 20222022/0362655Method and Apparatus for Distant Location of an ObjectFurniture, gamesCapTech Ventures, Inc.
Oct 7, 20212021/0309140BRIDGE APPARATUS AND SYSTEM FOR VEHICLE TRANSPORTTransportCottrell, Inc. · patent 11,660,996 granted from it
Jun 25, 20202020/0198517BRIDGE APPARATUS AND SYSTEM FOR VEHICLE TRANSPORTTransportCottrell, Inc. · patent 11,059,411 granted from it
Apr 7, 20162016/0098882SYSTEM AND METHOD TO ENABLE RULES-RESTRICTED VENDING MACHINE PURCHASESIT methods for managementCapTech Ventures, Inc.
Feb 12, 20152015/0041389Fluoropolymer Hollow Fiber Membrane with Fluoro-copolymer and Fluoro -terpolymer bonded end portion(s)Other special machinesMarkel Corporation
Feb 13, 20142014/0042077Fluoropolymer Hollow Fiber Membrane with Fluoro-copolymer and Fluoro -terpolymer bonded end portion(s)Other special machinesMarkel Corporation · patent 9,908,088 granted from it
Feb 13, 20142014/0042076Fluoropolymer Hollow Fiber Membrane with Fluoro-copolymer and Fluoro -terpolymer bonded end portion(s)Other special machinesMarkel Corporation · patent 9,908,087 granted from it
What it applied for, 2024 to 2025: Computer technology 1 · Transport 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 MKL · research, not advice