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NAT CLAY PIPE RES CORP

Overview
  • Total Patents
    18
About

NAT CLAY PIPE RES CORP has a total of 18 patent applications. Its first patent ever was published in 1945. It filed its patents most often in Canada, United States and United Kingdom. Its main competitors in its focus markets machines, mechanical elements and measurement are AMERON INTERNAT, TAMPAS CLICK LTDA and HANCOCK BRICK & TILE CO.

Patent filings in countries

World map showing NAT CLAY PIPE RES CORPs patent filings in countries
# Country Total Patents
#1 Canada 9
#2 United States 8
#3 United Kingdom 1

Patent filings per year

Chart showing NAT CLAY PIPE RES CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Everhart John O 10
#2 Krill Karl E 4
#3 Dine Robert E 4
#4 Montgomery Earle T 4
#5 Levine Marvin B 2
#6 Everhart John Otis 2
#7 Der Beck Roland R Van 1
#8 Lund Harold Howard 1
#9 Otis Everhart John 1
#10 Howard Lund H 1

Latest patents

Publication Filing date Title
GB951848A Improvements in or relating to the measurement of consistency
US3070110A Consistency measuring and control system
US2759491A Coaxial conduit construction
US2766054A Threaded joint-sealing gasket rings for molded pipe
US2712679A Means for forming argillaceous pipe
US2671939A Method and apparatus for forming tubular ceramic bodies
US2618075A Apparatus for drying and conveying ceramic bodies
US2537659A Joint for pipe and conduits
US2445963A Flexible joint construction for ceramic pipe
CA725367A Consistency measuring and control system
CA479527A Joints for pipes and conduits
CA522218A Method and means for forming argillaceous pipe
CA533818A Coaxial conduit construction
CA512764A Method and apparatus for forming tubular ceramic bodies
CA490816A Apparatus for drying and conveying ceramic bodies
CA482186A Flexible joint construction for ceramic pipe
CA538135A Threaded joint-sealing gasket rings for molded pipe
CA527862A Compressible joint seal for molded pipe