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BARNHART VERN A

Overview
  • Total Patents
    16
About

BARNHART VERN A has a total of 16 patent applications. Its first patent ever was published in 1929. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering and machines are VADALA GIUSEPPE, STOUT ROBERT K and SAN MAURICE DE.

Patent filings in countries

World map showing BARNHART VERN As patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 7

Patent filings per year

Chart showing BARNHART VERN As patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines

Top inventors

# Name Total Patents
#1 Barnhart Vern A 16

Latest patents

Publication Filing date Title
US2875497A Apparatus for producing hollow structural clay building units
US2810286A Cored masonry brick
US2737801A Hollow structural clay building unit
US2660878A Hollow masonry building unit
US2199946A Building unit
US2123225A Building device
US2138015A Building unit
US2023987A Building brick
US2009217A Building block
CA513840A Hollow structural clay building unit
CA361447A Building brick
CA564345A Cored masonry brick
CA365565A Building block
CA500587A Hollow masonry building unit
CA328179A Hollow building block and wall
CA387587A Building unit