CHICAGO TELEPHONE SUPPLY CO has a total of 122 patent applications. Its first patent ever was published in 1923. 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 HARDWICK HINDLE INC, MUCHER JOHN J and CADDOCK RICHARD E.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 116 | |
#2 | Canada | 6 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Machines | |
#3 | Audio-visual technology | |
#4 | Mechanical elements | |
#5 | Telecommunications | |
#6 | Machine tools |
# | Name | Total Patents |
---|---|---|
#1 | Schellenger Newton C | 97 |
#2 | Frost Herbert H | 6 |
#3 | Haselwood Willis E | 5 |
#4 | Arisman Mervin B | 4 |
#5 | Diener Riley M | 3 |
#6 | Draving Arthur M | 2 |
#7 | Stirling James A | 2 |
#8 | Irwin Ingham William | 2 |
#9 | George Pearson | 1 |
#10 | Lodge Edmund G | 1 |
Publication | Filing date | Title |
---|---|---|
US2524784A | Snap switch | |
US2437309A | Toroidal winding machine | |
US2352454A | Tab mounting variable resistor | |
US2320837A | Combination rheostat and switch | |
US2279065A | Switch construction | |
US2304479A | Combined switch and rheostat | |
US2286163A | Switch construction | |
US2313291A | Circuit controller | |
US2286162A | Switch construction | |
US2235902A | Switch | |
US2210842A | Switch construction | |
US2262821A | Electrical control device | |
US2177292A | Switch | |
US2276673A | Switch construction | |
US2245367A | Electrical control unit | |
US2257621A | Terminal construction | |
US2256628A | Combination electrical control assembly | |
US2177291A | Variable resistance device | |
US2212815A | Terminal construction | |
US2264955A | Switch construction |