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ROLLER SMITH COMPANY

Overview
  • Total Patents
    42
About

ROLLER SMITH COMPANY has a total of 42 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, measurement and machines are SHANGHAI JINGYI ELECTRICAL APPARATUS FACTORY CO LTD, SANGDO E&GC CO LTD and NAKAJIMA HIROKATSU.

Patent filings in countries

World map showing ROLLER SMITH COMPANYs patent filings in countries
# Country Total Patents
#1 United States 42

Patent filings per year

Chart showing ROLLER SMITH COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Roller Frank W 22
#2 Badeau Charles C 7
#3 Wood Joseph D 7
#4 Spurrier John R 2
#5 Bolsterli Arthur A 1
#6 Shire Harry I 1
#7 Sanborn John R 1
#8 Bean Horace D 1
#9 Hall Irving E 1
#10 Badeau Isaac F 1

Latest patents

Publication Filing date Title
US2328318A Circuit breaker contact
US2335103A Electric distribution system
US2208781A Electric control of distribution systems
US2129723A Circuit breaker
US2099639A Circuit breaker
US2028963A Circuit breaker
US1961573A Circuit breaker
US1871768A Operating mechanism for circuit breakers
US1974525A Circuit breaker
US1860054A Wall switch
US1767479A Circuit breaker
US1708900A Adjustable device for instruments
US1823471A Rail bond tester
US1804953A Measuring instrument
US1826024A Electric weighing apparatus
US1549970A Means for feeding and treating material
US1665223A Circuit breaker
US1659614A Wall circuit breaker
US1665113A Circuit breaker
US1596626A Electrical measuring instrument