Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › PTC air heater employing triangular PTC heating elements

PTC air heater employing triangular PTC heating elements

US Patent 4876436 · Granted Oct 24, 1989

Estimated economic value: $25,393,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Acoustic enclosure for motor vehicle2017
Method of treatment analysis with particle imaging2015
Vehicle audio system surround modes2011
Vehicle audio system surround modes2010
Reproducing center channel information in a vehicle multichannel audio system2009
Dielectric mounting system2001
Dual temperature hair curler utilizing a pair of PTC heaters1989
PTC heater device1989
Quick reset motor starting device1989
PTC thermistor heating device1989
PTC thermistor heating device1989
Carburetor deicer1988