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MARSHALL AND WILLIAMS CORP

Overview
  • Total Patents
    21
About

MARSHALL AND WILLIAMS CORP has a total of 21 patent applications. Its first patent ever was published in 1959. It filed its patents most often in Canada, United States and United Kingdom. Its main competitors in its focus markets chemical engineering, machines and textiles and paper are BEVIS IND INC, MARSHALL & WILLIAMS CORP and MARSHALL & WILLIAMS CO.

Patent filings in countries

World map showing MARSHALL AND WILLIAMS CORPs patent filings in countries
# Country Total Patents
#1 Canada 10
#2 United States 7
#3 United Kingdom 3
#4 France 1

Patent filings per year

Chart showing MARSHALL AND WILLIAMS CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nash John C 7
#2 Crandon Nash John 7
#3 Hyatt Frederick 2
#4 Pendleton Pyam L 1

Latest patents

Publication Filing date Title
US3243844A Longitudinal web stretching machine
US3179977A Multiple hinged rail joint
US3180002A Auxiliary closing mechanism for tenter clips
US3179976A Apparatus for stretching webs
US3120688A Auxiliary closing mechanisms for tenter clips
US3058191A Two piece tenter clip
US3023479A Tenter clip gate
CA680560A Tenter clip jaw
CA667397A Two piece tenter clip
CA771385A Positively driven variable speed mechanism
CA704804A Longitudinal web stretching machine
CA667769A Tenter clip gate
CA675932A Tenter clip with auxiliary closing mechanism
CA721001A Multiple hinged rail joint
CA706085A Apparatus for stretching webs
CA734294A Heat exchange roll
CA716254A Two piece tenter clip