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Graham Holdings Company (GHC)

NYSE: GHC · Services-Educational Services · Arlington, VA · filing with the SEC since 1994
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Grade6.2
◀ Past 7.3● Present 6.9▶ Future 4.0
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Patents

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

231 patents granted to the 19 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 Graham Holdings Company’s names, not what it holds today.

Patents granted
231
126 utility, 105 design, 1976 to Dec 31, 2025
Granted in 2025
7
Against 8 in 2024 and 7 in 2023
Applications published
85
3 of them in 2025
Names they are printed under
19
a subsidiary, its own name, a former 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
Electrical machinery, apparatus, energy8
Measurement1
Furniture, games1
Control1
Basic materials chemistry1
Thermal processes and apparatus1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name19 counted
Group Dekko, Inc. a subsidiary
US, as the owner printed on each patent
132 granted
30 published
Code 3, Inc. a subsidiary
US, as the owner printed on each patent
57 granted
27 published
Graham Holdings Company its own name
US, as the owner printed on each patent. 1 more under the same name are not counted (printed in AU)
15 granted
2 published
Kaplan, Inc. a subsidiary
US, as the owner printed on each patent
5 granted
3 published
LEAF GROUP LTD. a subsidiary
named as the applicant on its applications, in US
0 granted
8 published
Forney Corporation a subsidiary
US, as the owner printed on each patent
6 granted
1 published
Code 3, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
4 published
JoyceDayton Corporation a subsidiary
US, as the owner printed on each patent
4 granted
0 published
THE WASHINGTON POST a former name
US, as the owner printed on each patent
1 granted
3 published
Hoover Treated Wood Products a subsidiary
US, as the owner printed on each patent
3 granted
0 published
Walrus, Inc. a subsidiary
US, as the owner printed on each patent
3 granted
0 published
Anakin LLC a subsidiary
US, as the owner printed on each patent
2 granted
0 published
Group Dekko, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
2 published
Kaplan, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
2 published
Slate Group, LLC a subsidiary
US, as the owner printed on each patent
1 granted
1 published
C3 PO, LLC a subsidiary
US, as the owner printed on each patent
1 granted
0 published
Celtic Healthcare, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
1 published
Celtic Healthcare, Inc. a subsidiary
US, as the owner printed on each patent
0 granted
1 published
Forney, L.P. a subsidiary
US, as the owner printed on each patent
1 granted
0 published
Names not counted (4)
Endor, LLC
Most of its patents print DE; this name counts in US. 9 granted and 2 published under it are not counted.
Endor, LLC
Most of its patents print DE; this name counts in US. 0 granted and 2 published under it are not counted.
Out of the Box S.A.
Most of its patents print SG; this name counts in AR. 0 granted and 1 published under it are not counted.
Vader, LLC
Most of its patents print AU; this name counts in US. 1 granted and 0 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Dec 23, 2025D1,106,960Hermaphroditic electrical terminal for an electrical receptacleGroup Dekko, Inc.
Nov 25, 2025D1,103,110Hermaphroditic electrical terminal for an electrical receptacleGroup Dekko, Inc.
Nov 25, 2025D1,102,875Bezel faceplate for an electrical receptacleGroup Dekko, Inc.
Nov 25, 2025D1,102,874Faceplate for an electrical receptacleGroup Dekko, Inc.
Jul 22, 2025D1,085,021Electrical receptacle with in-line power unitGroup Dekko, Inc.
Jul 1, 2025D1,081,584Electrical receptacle for a desktop/work surfaceGroup Dekko, Inc.
Jul 1, 2025D1,081,577Electrical receptacle for a desktop/work surfaceGroup Dekko, Inc.
Dec 3, 2024D1,053,142Electrical housingGroup Dekko, Inc.
Dec 3, 202412,158,268High-capacity igniterThermal processes and apparatusForney Corporation
Sep 17, 2024D1,042,351Electrical plugGroup Dekko, Inc.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Oct 9, 20252025/0316963ELECTRICAL MODULES WITH REVERSIBLE CONNECTION ARRANGEMENTElectrical machinery, apparatus, energyGroup Dekko, Inc.
Oct 9, 20252025/0316937ELECTRICAL MODULE WITH HERMAPHRODITIC CONNECTION ARRANGEMENTElectrical machinery, apparatus, energyGroup Dekko, Inc.
Oct 9, 20252025/0316927LATCHING ARRANGEMENT FOR MATING ELECTRICAL MODULESElectrical machinery, apparatus, energyGroup Dekko, Inc.
May 4, 20232023/0140425STACKING OUTLET ENCLOSURESElectrical machinery, apparatus, energyGroup Dekko, Inc. · patent 11,646,536 granted from it
May 4, 20232023/0133279ELECTRICAL POWER COUPLINGElectrical machinery, apparatus, energyGroup Dekko, Inc.
Apr 27, 20232023/0125858ELECTRICAL OUTLET BOARDAudio-visual technologyGroup Dekko, Inc.
Apr 20, 20232023/0121766MODULAR ELECTRICAL RECEPTACLEElectrical machinery, apparatus, energyGroup Dekko, Inc. · patent 12,088,035 granted from it
Apr 20, 20232023/0117394SNAP ON FACEPLATE FOR AN ELECTRICAL RECEPTACLEElectrical machinery, apparatus, energyGroup Dekko, Inc. · patent 12,046,849 granted from it
Dec 8, 20222022/0390108HIGH-CAPACITY IGNITERThermal processes and apparatusForney Corporation · patent 12,158,268 granted from it
Jul 14, 20222022/0224092MOUNTING BRACKET ASSEMBLY FOR AN ELECTRICAL RECEPTACLE SYSTEMElectrical machinery, apparatus, energyGroup Dekko, Inc. · patent 11,527,875 granted from it
What it applied for, 2024 to 2025: Electrical machinery, apparatus, energy 3.

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 GHC · research, not advice