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GOODKNIGHT ALVA L

Overview
  • Total Patents
    15
About

GOODKNIGHT ALVA L has a total of 15 patent applications. Its first patent ever was published in 1905. It filed its patents most often in United States and Canada. Its main competitors in its focus markets transport and machines are CALEB SMITH BRAGG, GRAHAM JOHN M and PENDRY WILLIAM A.

Patent filings in countries

World map showing GOODKNIGHT ALVA Ls patent filings in countries
# Country Total Patents
#1 United States 10
#2 Canada 5

Patent filings per year

Chart showing GOODKNIGHT ALVA Ls patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Transport
#2 Machines

Top inventors

# Name Total Patents
#1 Goodknight Alva L 15

Latest patents

Publication Filing date Title
US2101708A Air brake mechanism
US2077788A Air brake mechanism
US2077787A Air brake mechanism
US1835999A Air brake mechanism
US1736910A Air-brake mechanism
US1073038A Self-adjusting brake-shoe.
US943778A Air-brake-adjusting device for loaded and empty cars.
US869837A Air-brake system.
CA103644A Air brake
US847936A Air-brake mechanism.
CA98976A Air brake
CA95578A Air brake
US813090A Air-brake mechanism.
CA93432A Air brake
CA327030A Air brake mechanism