Learn more

LUNKENHEIMER CO

Overview
  • Total Patents
    92
About

LUNKENHEIMER CO has a total of 92 patent applications. Its first patent ever was published in 1897. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets mechanical elements, machines and civil engineering are SCARAMUCCI DOMER, KEROX MULTIPOLAR II KFT and LAMINAR FLUID CONTROLS INC.

Patent filings in countries

World map showing LUNKENHEIMER COs patent filings in countries
# Country Total Patents
#1 United States 84
#2 United Kingdom 4
#3 France 2
#4 Canada 1
#5 Germany 1

Patent filings per year

Chart showing LUNKENHEIMER COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lunken Edmund H 15
#2 Hehemann Frederick H 15
#3 Aull Jerome J 12
#4 Ritter Henry 10
#5 Bolton John W 6
#6 Weigand Sylvester A 4
#7 Urban John B 4
#8 Riopelle Earl F 3
#9 Monnig Anthony B 3
#10 Paptzun George J 3

Latest patents

Publication Filing date Title
US4057883A Method of assembling rotary ball valve
US3913610A Butterfly valve
US3921955A Positioning assembly for valve closure members
US3948480A Rotary ball valve
US3528448A Slurry valve
US3458171A Seat ring for ball valves
US3499467A Multiple flow-pattern valve
US3423661A Torque responsive overload actuator to stop drive and brake
GB1065860A Improvements in and relating to ball valves
GB1008878A Improvements in and relating to rotary fluid-control valves
US3146988A Seat ring for ball valves
US3047007A Ball valve
US2996075A Valve construction
US2947046A Method of making plastic laminated core boxes and patterns
US2950081A Rotary plug valve having replaceable seats
US2865596A Plastic valve
US2821474A Hard ductile alloy
US2656143A Flexible gate valve
US2635482A Valve handle
US2618013A Apparatus for forming pellets