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DAVID T SIEGEL

Overview
  • Total Patents
    27
About

DAVID T SIEGEL has a total of 27 patent applications. Its first patent ever was published in 1940. It filed its patents most often in United States and Canada. Its main competitors in its focus markets electrical machinery and energy, machines and machine tools are KAHO KAGI KOFUN YUGENKOSHI, KOHRING WILBUR M and SCHONBERGER MILTON.

Patent filings in countries

World map showing DAVID T SIEGELs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Canada 13

Patent filings per year

Chart showing DAVID T SIEGELs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Berkelhamer Louis H 9
#2 Harry Chanowitz 4
#3 Lense Herbert E 3
#4 Chanowitz Harry 3
#5 Gray Gordon E 2
#6 Ellin Fredrick I 2
#7 Isaac Ellin Fredrick 1
#8 Oliver Upton Lee 1
#9 Upton Lee O 1
#10 Runtz Jean W 1

Latest patents

Publication Filing date Title
US3141118A Electrolytic capacitor unit
US2880296A Electrical resistor and method of making same
US2844692A Pile resistor
US2660653A Resistor and method of manufacture
US2675453A Apparatus for manufacture of welded terminal resistors
US2683567A Resistor winding
US2628300A Resistor
US2647192A Electrical element
US2666120A Welding method and article produced thereby
US2479557A Rheostat structure and method of molding
US2623145A Resistor structure and method of manufacture
US2479556A Welding method and apparatus
US2460807A Welding apparatus
US2298735A Electric motor
CA560859A Apparatus for making precision resistors
CA410043A Dummy antenna resistor
CA548202A Resistor
CA559128A Resistor and method of manufacture
CA585342A Welded terminal resistor and manufacture thereof
CA417609A Electric motor