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HELLMAN HENRY

Overview
  • Total Patents
    20
About

HELLMAN HENRY has a total of 20 patent applications. Its first patent ever was published in 1904. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets civil engineering, machines and machine tools are V TECH AS, WEATHERFORD RIG SYSTEMS AS and JAMES A KAMMERDINER.

Patent filings in countries

World map showing HELLMAN HENRYs patent filings in countries
# Country Total Patents
#1 United States 18
#2 United Kingdom 2

Patent filings per year

Chart showing HELLMAN HENRYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines
#3 Machine tools

Top inventors

# Name Total Patents
#1 Hellman Henry 20
#2 Bayles Lewis Condict 19
#3 Bayles Lewis C 1

Latest patents

Publication Filing date Title
GB190704739A Improvements in and relating to Rock-drilling Machines.
US887801A Rock-drilling machine.
US881579A Water-supplying attachment for rock-drills.
US872996A Water-supplying attachment for rock-drilling machines.
US847286A Water-supplying attachemt for rock-drilling machines.
US850885A Means for mounting rock-drilling machines or engines.
US845952A Drill or bit rotating mechanism for rock-drilling machines or engines.
GB190515757A Improvements in Rock-drilling Machines
US832791A Rock-drilling machine or engine.
US829071A Rock-drilling machine or engine.
US872417A Rock-drilling machine or engine.
US888497A Rock-drilling machine or engine.
US872418A Rock-drilling machine or engine.
US834522A Rock-drilling machine or engine.
US797111A Rock-drill or rock-drilling machine.
US816090A Rock-drill or rock-drilling machine.
US819756A Rock-drilling machine.
US842953A Rock-drill.
US819755A Rock-drill.
US839586A Rock-drill.