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R THOMAS & SONS COMPANY

Overview
  • Total Patents
    17
About

R THOMAS & SONS COMPANY has a total of 17 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, machines and thermal processes are PRYSMIAN POWER CABLES AND SYSTEMS USA LLC, ROCKBESTOS SURPRENANT CABLE CORP and WPFY INC.

Patent filings in countries

World map showing R THOMAS & SONS COMPANYs patent filings in countries
# Country Total Patents
#1 United States 17

Patent filings per year

Chart showing R THOMAS & SONS COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Marvin Richard H 5
#2 Sleeman Harold P 4
#3 Blanchard Vincent Harold 2
#4 Eckert Grandon E 2
#5 Buckley Lorenzo C 2
#6 Holmes Henry R 1
#7 Parker Sleeman Harold 1
#8 Edward Kauffman Abram 1
#9 Mason Albert G 1

Latest patents

Publication Filing date Title
US2154387A Electric insulator
US1760786A Coupling for insulators
US1733067A Insulator
US1896189A Apparatus for protecting power-line insulators
US1854083A Apparatus for protecting supporting insulators on power lines
US1734167A Suspension insulator fitting
US1947321A Arcing horn for insulators
US1690989A Multiple-string insulator suspension
US1641815A Method and apparatus for finishing insulators
US1566070A Sagger
US1587480A Strain clamp
US1755032A Insulator
US1708876A Insulator
US1471907A Machine for heading porcelain tubes and the like
US1525407A High-voltage switch
US1526168A Insulator link
US1441990A Insulator connector