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ROBERT L KAHN

Overview
  • Total Patents
    12
About

ROBERT L KAHN has a total of 12 patent applications. Its first patent ever was published in 1931. It filed its patents most often in United States and Canada. Its main competitors in its focus markets electrical machinery and energy, machines and audio-visual technology are WEINBERG MARTIN, SELBACH DIRK and A T T ADVANCED TRANSFORMER TEC.

Patent filings in countries

World map showing ROBERT L KAHNs patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 1

Patent filings per year

Chart showing ROBERT L KAHNs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bussey William H 5
#2 Goodwin Smith George 1
#3 Glukes Bernard R 1
#4 Bussey William Henry 1
#5 Harry Schagrin 1
#6 Weir Robert E 1
#7 Sherman Rubenstein 1
#8 Joseph Razek 1

Latest patents

Publication Filing date Title
US3373043A Method of packaging coffee and package
US2447796A Grid structure for electron discharge tubes
US2535232A Electrical apparatus
US2450170A Fitting
US2470975A Electrical apparatus
US2436742A Line cord transformer
US2436741A Vacuum tube voltmeter
US2439072A Amplifying coupling between a low resistance source and a high resistance circuit
US2300447A Animated sign
US2255141A Arc welder
US1995192A Cleaning iron or steel
CA464385A Electric apparatus