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HEMPHILL CHARLES WAYNE

Overview
  • Total Patents
    12
About

HEMPHILL CHARLES WAYNE has a total of 12 patent applications. Its first patent ever was published in 1970. It filed its patents most often in United States, Austria and Belgium. Its main competitors in its focus markets civil engineering and environmental technology are GIMAC SPA, NITTA NAOMASA and CALDERWOOD JAMES A.

Patent filings in countries

World map showing HEMPHILL CHARLES WAYNEs patent filings in countries
# Country Total Patents
#1 United States 3
#2 Austria 1
#3 Belgium 1
#4 Germany 1
#5 France 1
#6 Italy 1
#7 Japan 1
#8 Mexico 1
#9 Norway 1
#10 Sweden 1

Patent filings per year

Chart showing HEMPHILL CHARLES WAYNEs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Environmental technology

Focus technologies

# Technology
#1 Dredging
#2 Garbage disposal

Top inventors

# Name Total Patents
#1 Hemphill Charles Wayne 6
#2 Chiyaaruzu Uein Henpuhiru 1

Latest patents

Publication Filing date Title
ATA540077A Digging tool for excavators in the shape of a spoon
US4098013A Digging tooth with replaceable cutting edge
US4117611A Digging teeth for an excavating bucket
US3625374A Apparatus for disposing of refuse