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HAIR ROBERTA A

Overview
  • Total Patents
    17
About

HAIR ROBERTA A has a total of 17 patent applications. Its first patent ever was published in 1984. It filed its patents most often in Canada, United States and Germany. Its main competitors in its focus markets civil engineering are AEBERLI HEINRICH, DIRECTIA DE DRUMURI SI PODURI and KYUKEN KK.

Patent filings in countries

World map showing HAIR ROBERTA As patent filings in countries
# Country Total Patents
#1 Canada 8
#2 United States 7
#3 Germany 1
#4 WIPO (World Intellectual Property Organization) 1

Patent filings per year

Chart showing HAIR ROBERTA As patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Construction of roads

Top inventors

# Name Total Patents
#1 Hair Roberta A 17

Latest patents

Publication Filing date Title
CA2094007A1 Interlocking paving stone for covering the ground and the like
CA2085933A1 Interlocking slab element and ground surface cover
US5201843A Interlocking paving stone for open drainage ground cover pattern
US5286139A Interlocking paving stone for closed and open drainage patterns
US5173003A Interlocking slab element and ground surface cover
US5108219A Interlocking paving stone
US4973192A Interlocking paving stone and ground cover formed thereof
CA1318167C Interlocking slab element and ground surface cover
US4544305A Interlocking slab element for covering the ground and the like