Learn more

KENNEDY JOHN M

Overview
  • Total Patents
    23
About

KENNEDY JOHN M has a total of 23 patent applications. Its first patent ever was published in 1976. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets civil engineering and machines are HUAINAN RUNCHENG TECHNOLOGY CO, PROIZV OB ARMTSVETMET N and SIB G PK EXI GORNOGO MASH SIBG.

Patent filings in countries

World map showing KENNEDY JOHN Ms patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 6
#3 Australia 3
#4 South Africa 3
#5 United Kingdom 2

Patent filings per year

Chart showing KENNEDY JOHN Ms patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Kennedy John M 23
#2 Kennedy William R 23
#3 William R Kennedy 1
#4 John M Kennedy 1

Latest patents

Publication Filing date Title
AU2004222798A1 Mine ventilation panel system
US4820081A Head seal for a mine stopping
US4695035A Jack for installing a mine stopping
US4523406A Door frame and door assembly for a mine stopping
US4484837A Mine stopping lap-over panel clamp
US4478535A Mine stopping with man door and door frame assembly
US4483642A Mine stopping and method of and jack for installing same
US4373294A Door for a mine stopping having knife-edge hinges
US4118894A Door frame and door assembly for a mine stopping
US4082331A Door for a mine stopping