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DURO LAST INC

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    224,923
About

DURO LAST INC has a total of 14 patent applications. Its first patent ever was published in 1990. It filed its patents most often in Canada, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets machines, civil engineering and macromolecular chemistry and polymers are RUBEROIDWERKE AG, SIPLAST SOC NOUVELLE and GAF BUILDING MATERIALS.

Patent filings in countries

World map showing DURO LAST INCs patent filings in countries
# Country Total Patents
#1 Canada 7
#2 United States 6
#3 WIPO (World Intellectual Property Organization) 1

Patent filings per year

Chart showing DURO LAST INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fritz Todd D 3
#2 Hultz Robert C 2
#3 Traska Jeff 2
#4 Scott John R 2
#5 Hart Timothy L 2
#6 Hermanson Harry 2
#7 Grussing David R 2
#8 Black Cary K 2
#9 Gere Keith Allan 2
#10 Gere Keith 1

Latest patents

Publication Filing date Title
CA2888687A1 Injection-molded roofing membrane plate
CA2887827A1 Roofing pull-test frame assembly
WO2011156353A1 Method and apparatus for applying strips to surfaces
CA2757556A1 Roofing membrane
US2006070223A1 Roofing membrane puller and method of use
US7178306B2 Single ply roofing systems and methods of constructing them
US5829214A Methods of sealing roof drain pipes in single ply synthetic plastic roof cover systems and roof cover systems employing such drain pipe sealing assemblies
US5145617A Method of processing scrap roof-membrane sheet material comprising a flexible synthetic fabric substrate enveloped in a thermoplastic plastic envelope