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JOHNSTON THOMAS A

Overview
  • Total Patents
    15
About

JOHNSTON THOMAS A has a total of 15 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States, Canada and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets mechanical elements, furniture and games and civil engineering are JIANGSU HAOKE TRANS TECH CO LTD, NANJING CHUANGLI TRANS MACHINERY CO LTD and ZF TRANSMISSION TECHNOLOGIES L.

Patent filings in countries

World map showing JOHNSTON THOMAS As patent filings in countries
# Country Total Patents
#1 United States 7
#2 Canada 3
#3 WIPO (World Intellectual Property Organization) 3
#4 EPO (European Patent Office) 2

Patent filings per year

Chart showing JOHNSTON THOMAS As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Johnston Thomas A 15
#2 Dill Charles 1
#3 Finley Thomas L 1

Latest patents

Publication Filing date Title
CA2220669A1 Continuously variable transmission utilizing variable viscous couplings
WO9635892A1 Continuously variable transmission utilizing variable viscous couplings
US5299985A Continuously variable transmission apparatus
US5030180A Variable transmission apparatus
US948610A Rod-packing.
US872132A Rod-packing.
CA111273A Rod packing
US795042A Rail-joint.
US779480A Metallic packing.
US676503A Clothes-drier.