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Preformed Line Products Company (PLPC)

Nasdaq: PLPC · Water, Sewer, Pipeline, Comm & Power Line Construction · Cleveland, OH · filing with the SEC since 2001
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Grade5.7
◀ Past 6.0● Present 5.6▶ Future 5.3
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Patents

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

129 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 Preformed Line Products Company’s names, not what it holds today.

Patents granted
129
128 utility, 1 design, 1976 to Dec 31, 2025
Granted in 2025
8
Against 9 in 2024 and 8 in 2023
Applications published
109
10 of them in 2025
Names they are printed under
6
its own name, a subsidiary
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, energy14
Optics10
Mechanical elements6
Transport6
Measurement2
Thermal processes and apparatus1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name6 counted
Preformed Line Products Co. its own name
US, as the owner printed on each patent
127 granted
29 published
PREFORMED LINE PRODUCTS CO. its own name
named as the applicant on its applications, in US
0 granted
78 published
Beijing PLP Conductor Line Products Co. Ltd. a subsidiary
CN, as the owner printed on each patent
1 granted
0 published
Beijing PLP Conductor Line Products Co., Ltd. a subsidiary
named as the applicant on its applications, in CN
0 granted
1 published
Preformed Line Products Company, an Ohio corporation its own name
US, as the owner printed on each patent
0 granted
1 published
The Republic of South Africa a subsidiary
ZA, as the owner printed on each patent
1 granted
0 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Nov 18, 202512,476,447Spacer arm corona shieldElectrical machinery, apparatus, energyPreformed Line Products Co.
Oct 14, 202512,443,001Extendable splice trayOpticsPreformed Line Products Co.
Oct 7, 202512,435,770Vibration damperMechanical elementsPreformed Line Products Co.
Jul 29, 202512,374,871Single component lock mechanism of a pedestalElectrical machinery, apparatus, energyPreformed Line Products Co.
Jul 15, 202512,358,087Spacer drone install systemTransportPreformed Line Products Co.
Jul 8, 202512,353,021Retrofit cover for fiber optic cable connectionOpticsPreformed Line Products Co.
Apr 29, 202512,288,653Cable enclosure and assemblyElectrical machinery, apparatus, energyPreformed Line Products Co.
Jan 7, 202512,187,428Drone installed hardwareTransportPreformed Line Products Co.
Nov 5, 202412,136,803Multi-line suspending bracketElectrical machinery, apparatus, energyPreformed Line Products Co.
Oct 15, 202412,119,634Clamp for suspending wireElectrical machinery, apparatus, energyPreformed Line Products Co.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Dec 11, 20252025/0377512SLACK STORAGE BASKET WALL EXPANDEROpticsPREFORMED LINE PRODUCTS CO.
Nov 20, 20252025/0357734SINGLE COMPONENT LOCK MECHANISM OF A PEDESTALElectrical machinery, apparatus, energyPREFORMED LINE PRODUCTS CO.
Nov 13, 20252025/0345889SPACER DRONE INSTALL SYSTEMTransportPREFORMED LINE PRODUCTS CO.
Jul 31, 20252025/0244549CABLE SUPPORT DEVICESOpticsPREFORMED LINE PRODUCTS CO.
Jul 31, 20252025/0244407REMOTE LINE MONITORING SYSTEM AND METHODMeasurementPREFORMED LINE PRODUCTS CO.
Jul 31, 20252025/0241292MODULAR UNIVERSAL BIRD PERCH DETERRENTOther special machinesPREFORMED LINE PRODUCTS CO.
Jun 5, 20252025/0183633CABLE RETAINER ASSEMBLIES AND CABLE ENCLOSURESElectrical machinery, apparatus, energyPREFORMED LINE PRODUCTS CO.
Mar 6, 20252025/0075452BOLLARD HOLDERCivil engineeringPREFORMED LINE PRODUCTS CO.
Jan 16, 20252025/0023337DEAD END CABLE FITTINGSElectrical machinery, apparatus, energyPREFORMED LINE PRODUCTS CO.
Jan 9, 20252025/0015573CABLE RETAINER ASSEMBLIES AND METHODS OF RETAINING CABLESElectrical machinery, apparatus, energyPREFORMED LINE PRODUCTS CO.
What it applied for, 2024 to 2025: Electrical machinery, apparatus, energy 10 · Optics 4 · Mechanical elements 1 · Civil engineering 1 · Other special machines 1 · Measurement 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 PLPC · research, not advice