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WATSON JAMES A

Overview
  • Total Patents
    14
About

WATSON JAMES A has a total of 14 patent applications. Its first patent ever was published in 1897. It filed its patents most often in United States and Canada. Its main competitors in its focus markets mechanical elements, machines and engines, pumps and turbines are KLT CO LTD, SHIBAURA KYODO KOGYO KABUSHIKI and ETS TECALEMIT SA.

Patent filings in countries

World map showing WATSON JAMES As patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 3

Patent filings per year

Chart showing WATSON JAMES As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Watson James A 14
#2 Forbes Martin L 1
#3 Rose William H 1
#4 Fuller Matthew A 1
#5 Burns John 1
#6 Smith Mark V 1

Latest patents

Publication Filing date Title
US1591690A Oil-purifying apparatus for hydrocarbon engines
US1651495A Oil-purifying apparatus for hydrocarbon engines
US1608571A Oil-purifying apparatus for internal-combustion engines
US1630876A Oil-purifying apparatus for hydrocarbon engines
US1431347A Oil-purifying apparatus for hydrocarbon engines
US1359453A Oil-purifying apparatus for hydrocarbon-engines
US1431346A Oil-purifying apparatus for hydrocarbon engines
US1328022A Clutch
US714839A Apparatus for advertising or like purposes.
US747104A Vacuum despatch system.
CA204566A Oil purifying apparatus for hydro-carbon engines
CA312031A Automobile door lock
CA307045A Combined lock and door retainer