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MONTANA SULPHUR & CHEM

Overview
  • Total Patents
    19
About

MONTANA SULPHUR & CHEM has a total of 19 patent applications. Its first patent ever was published in 1990. It filed its patents most often in United States and Canada. Its main competitors in its focus markets transport, machines and mechanical elements are SOUTHERN STEEL CO, CLESSE MANDET SA and VALICO PVBA.

Patent filings in countries

World map showing MONTANA SULPHUR & CHEMs patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 8

Patent filings per year

Chart showing MONTANA SULPHUR & CHEMs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zink Donald L 19
#2 Zink Donald G 13
#3 Schwartz John E 5

Latest patents

Publication Filing date Title
US5251658A Fluid apparatus with at least one tube well
US5211202A Fluid apparatus with pressure-tight recessed well
US5238022A Internal rotary valve actuator system
CA2053201A1 Fluid containment vessel with one or more recessed wells
CA2053215A1 Fluid apparatus with pressure-tight recessed well
CA2053043A1 Vapor space water hammer eliminator system for liquid transport apparatuses
CA2053116A1 Internal rotary valve actuator system
US5220943A Internal pump assembly
US5222517A Fluid containment vessel with one or more recessed wells
US5141013A Fluid containment apparatus
US5097976A Fluid containment apparatus with well closure assembly
US5303843A Fluid transport apparatus with water hammer eliminator system
US5228473A Internal safety valve system
US5285998A Internal valve for pressure fluid containment vessels