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DOUBLE BODY BOLSTER CO

Overview
  • Total Patents
    74
About

DOUBLE BODY BOLSTER CO has a total of 74 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United States. Its main competitors in its focus markets transport are NAT STEEL CAR LTD, SHEFFIELD GEORGE HARRISON and BETTENDORF WILLIAM P.

Patent filings in countries

World map showing DOUBLE BODY BOLSTER COs patent filings in countries
# Country Total Patents
#1 United States 74

Patent filings per year

Chart showing DOUBLE BODY BOLSTER COs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Transport

Top inventors

# Name Total Patents
#1 Pflager Harry M 36
#2 Westlake Charles T 21
#3 Howard Clarence H 20
#4 Frede Charles F 17
#5 Johnson Boone V H 4
#6 Shallenberger Charles S 3
#7 Clarence H Howard 1
#8 Pulliam Oswald S 1
#9 Flager Harry M 1
#10 Dath Charles E 1

Latest patents

Publication Filing date Title
US1099376A Trailer-truck frame for locomotives.
US1105300A Six-wheel car-truck.
US1102620A Center-bolster for six-wheel car-trucks.
US1107857A Equalizing car-truck.
US1105299A Car-frame construction.
US1105265A Support for axle-driven light-generators.
US1068529A Car-truck.
US1080206A Six-wheel-car-truck brake.
US1068657A Dynamo-suspension bar for car-trucks.
US1080557A Truck construction.
US1080556A Truck construction.
US1080559A Truck construction.
US1080558A Truck construction.
US1080555A Truck construction.
US1073706A Car end frame.
US1080163A Car-frame construction.
US1072646A Car end frame.
US1056445A Car-frame construction.
US1097819A Truck-frame.
US1072645A Car-truck.