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ROBINSON CLAY PRODUCT COMPANY

Overview
  • Total Patents
    19
About

ROBINSON CLAY PRODUCT COMPANY has a total of 19 patent applications. Its first patent ever was published in 1933. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets mechanical elements, machines and materials and metallurgy are PROIZV OB TYUMENGAZTEKHNOLOGIY, QUASSOWSKI KEMPF INGEBORG and INST GORNOJ MEK IM G A TSULUKI.

Patent filings in countries

World map showing ROBINSON CLAY PRODUCT COMPANYs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 7
#3 United Kingdom 2
#4 Germany 1

Patent filings per year

Chart showing ROBINSON CLAY PRODUCT COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Anderson Richard H 10
#2 Schaulin George M 4
#3 Hertzell Emanuel A 3
#4 Black Frank W 1
#5 Kenneth Hamlen Earle 1
#6 Hamlen Earle Kenneth 1
#7 Lindemann Robert E 1
#8 Anderson Richard Hugh 1

Latest patents

Publication Filing date Title
US3356778A Methods of making seals for pipe joints
US3185491A Seal for pipe joints
GB796681A Improvements in spigot and socket pipe joints
GB796680A Improvements relating to pipe joints
US2816782A Resilient toroidal push-type pipe joint
US2480577A Refractory material
US2396509A Acidproof cements
US2403364A Gasket
US2282282A Method and apparatus for manufacturing pipe
US2291348A Wall coping
US2032523A Pipe handling equipment
CA560772A Toroidal push-type pipe joint
CA354445A Wall coping
CA891588A Apparatus for pressing of clay pipe using an elastomeric mandrel
CA635795A Plastisol pipe joint and method of forming same
CA577176A Toroidal push-type pipe joint
CA414307A Wall coping
CA417439A Pipe manufacturing apparatus