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HAMILTON WILLIAM S H

Overview
  • Total Patents
    19
About

HAMILTON WILLIAM S H has a total of 19 patent applications. Its first patent ever was published in 1933. It filed its patents most often in United States and Canada. Its main competitors in its focus markets electrical machinery and energy and machines are TRIFLUX SOC, CORE CONSULTING GROUP and LIGHT LTD E.

Patent filings in countries

World map showing HAMILTON WILLIAM S Hs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 6

Patent filings per year

Chart showing HAMILTON WILLIAM S Hs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Electrical machinery and energy
#2 Machines

Top inventors

# Name Total Patents
#1 Hamilton William S H 19

Latest patents

Publication Filing date Title
US2918605A Starting and operating fluorescent lamps in series
US2697801A Instant starting circuit for fluorescent lamps
US2729769A Starting and operating circuits for fluorescent lamps
US2714691A Starting and operating circuits for fluorescent lamps
US2743383A Starting and operating circuits for fluorescent lamps
US2729768A Starting and operating circuits for fluorescent lamps
US2703375A Starting and operating circuit for fluorescent lamps
US2687495A Starting and operating circuits for fluorescent lamps
US2717332A Starting and operating circuits for fluorescent lamps
US2714690A Starting and operating circuits for fluorescent lamps
US2717333A Starting and operating circuit for fluorescent lamp
US2667604A Starting and operating circuits for fluorescent lamps
US2021005A Control system for oil-electric locomotives
CA504206A Starting and operating circuits for fluorescent lamps
CA523604A Starting and operating circuit for fluorescent lamps
CA392125A Air conditioning and illuminating system for railway cars
CA358589A Oil-electric locomotive
CA523605A Starting and operating circuits for fluorescent lamps
CA532554A Starting and operating circuit for fluorescent lamps