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BRIEN WILLIAM J O

Overview
  • Total Patents
    12
About

BRIEN WILLIAM J O has a total of 12 patent applications. Its first patent ever was published in 1973. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets medical technology, measurement and civil engineering are EASYTEM CO LTD, GERLITZ JONATHAN and FLYBY S R L.

Patent filings per year

Chart showing BRIEN WILLIAM J Os patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 O'Brien William J 11
#2 St Louis Russell A 1
#3 Underwood Joseph E Jr 1
#4 Heller Anton H 1
#5 Heller Executrix Julia 1
#6 Ciraulo James N 1

Latest patents

Publication Filing date Title
AU4604597A Tooth color matching system
US5242305A Method and composition for removing mercury vapor from dental restorations
US5188481A Asphalt heating unit
US5120217A Asphalt reclamation unit with discharge feed and improved hot air flow
US4467815A Apparatus for measuring conditional characteristics of a body part
CA1026294A Rotary steam engine
US3890071A Rotary steam engine