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HOPP HAROLD P

Overview
  • Total Patents
    25
About

HOPP HAROLD P has a total of 25 patent applications. Its first patent ever was published in 1960. It filed its patents most often in United States, Japan and Mexico. Its main competitors in its focus markets mechanical elements, electrical machinery and energy and machines are DUFFY CHARLES HUGH, DREXLER FRITZ and MCFALL THURLOW E.

Patent filings in countries

World map showing HOPP HAROLD Ps patent filings in countries
# Country Total Patents
#1 United States 9
#2 Japan 4
#3 Mexico 4
#4 Germany 3
#5 Belgium 2
#6 Canada 2
#7 United Kingdom 1

Patent filings per year

Chart showing HOPP HAROLD Ps patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hopp Harold P 18
#2 Harorudo Pii Hotsupu 4
#3 Bohm Rudolf 3

Latest patents

Publication Filing date Title
GB2079873A A method of installing a captive spark plug gasket with low profile locking lugs
JPS5717589A Method of mounting gasket on spark plug
BE884079A Captive type spark plug seal with lowered locking projections and method for installing the same.
US4241491A Method of installing captive type spark plug gasket with low profile locking tabs
DE2916370A1 Spark-plug captive joint driving tool - has undulating curved driving surface to flatten locking flange into undercut zone
JPS55141082A Tool for mounting gasket at ignition plug
US4168839A Means and method for installing captive type spark plug gaskets
US4064612A Locking type gasket for spark plugs having fully threaded shanks and tool therefor
US4003120A Captive type spark plug gasket and tool for installing same
US3948532A Captive type sparkplug gasket
US3332141A Method of installing gaskets in captive relation on spark plugs
US3299504A Method of applying spark plug gaskets
US3156477A Spark plug gasket and tool therefor
US3099456A Thread forming sparkplug gaskets
CA693380A Thread forming spark plug gaskets
CA698173A Means and method for forming non-planar articles