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KEROTEST MFG CORP

Overview
  • Total Patents
    82
About

KEROTEST MFG CORP has a total of 82 patent applications. Its first patent ever was published in 1964. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets mechanical elements, machines and engines, pumps and turbines are KITZ SCT CORP, EMERSON PROCESS MAN TIANJIN VALVES CO LTD and WU MEI.

Patent filings in countries

World map showing KEROTEST MFG CORPs patent filings in countries

Patent filings per year

Chart showing KEROTEST MFG CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Conley Richard W 27
#2 Tremblay Richard P 24
#3 Owoc James R 12
#4 Schmitt Edward L 10
#5 Bolam Charles W 7
#6 Caroleo Steven J 6
#7 Wrenshall Edward N 4
#8 Visalli Robert G 4
#9 Logan James E 4
#10 Daniels James R 3

Latest patents

Publication Filing date Title
US5951902A Method and apparatus for electrofusing thermoplastic
US5639394A Electrofusion formed valve assembly
US5586749A Composite polyethylene and transition valve
US5154396A Reinforced plastic valve
US5100103A Reinforced plastic valve
US4988077A Reinforced plastic valve
CA1291102C Reinforced plastic valve
US4546662A Actuator mechanism for double bent bellows sealed rotary valve
US4540019A Bellows sealed stem for rotary valve
US4516754A Bent bellows sealed rotary valve
CA1229837A Bellows sealed stem for rotary valve
CA1229586A Actuator mechanism for double bent bellows sealed rotary valve
EP0117610A2 Plastics flow control valve
IE840072L Rotary plug type service valve
EP0134866A2 On-off valve
US4513779A Metering valve
US4526341A Pneumatic shut-off valve
IE831063L Plastic valve and actuator
US4511120A Plastic service valve
US4488741A Compression coupling for service valve