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BIRMINGHAM BOLT CO

Overview
  • Total Patents
    28
About

BIRMINGHAM BOLT CO has a total of 28 patent applications. Its first patent ever was published in 1979. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets civil engineering, mechanical elements and machine tools are APPLIC SCIENT TECH IND ET COMM, SCOTT JAMES J and LUDWIG VANWERSCH.

Patent filings in countries

World map showing BIRMINGHAM BOLT COs patent filings in countries
# Country Total Patents
#1 United States 12
#2 Canada 4
#3 Australia 2
#4 United Kingdom 2
#5 India 2
#6 Japan 2
#7 Mexico 2
#8 Republic of Korea 1
#9 South Africa 1

Patent filings per year

Chart showing BIRMINGHAM BOLT COs patent filings per year from 1900 to 2020

Focus technologies

# Technology
#1 Shafts
#2 Nails
#3 Punching metal

Top inventors

# Name Total Patents
#1 White Claude C 18
#2 Carr Frederick 14
#3 White Claude Carlos 4
#4 Kuroodo Shii Howaito 2
#5 Furederitsuku Kaa 2
#6 Wright Raymond L 1
#7 Schaffer Charles W 1
#8 Bast Bernard J 1
#9 Leonard Henry A 1
#10 Clark Carl A 1

Latest patents

Publication Filing date Title
US5073064A Method and apparatus for retorquing an installed mine roof bolt
US4859118A Mine roof support anchor and process for installing the same
US4876877A Portable tool for bending roof bolts for insertion in mine roof openings
CA1295138C Mine roof truss
CA1251960A Mine roof anchor assembly
US4764055A Resin reinforced expansion anchor system
US4749310A Mine roof truss
US4534679A Combination expansion shell and resin secured mine roof anchor assembly
US4534680A Combination expansion shell and resin secured mine roof anchor assembly
US4556344A Combination expansion shell and resin secured mine roof anchor assembly
US4483645A Combination expansion shell and resin secured mine roof anchor assembly
US4437795A Mine roof anchor assembly
US4342527A Support assembly for underground mine and tunnel roofs
US4347020A Mine roof bolt assembly