Franz Bohlender
61Patents
11h-index
22Co-inventors
78Inventor score
Filing activity: Sep 30, 1987 → Dec 6, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5057672A | Radiator having PTC electric resistance heating elements and spring-biased fin arrangement | Electricity | 41 | Expired |
| US4814584A | Profiled PCT heater for heating a tubular member | Electricity | 30 | Expired |
| US6392207B1 | Electric heating device, especially for use in motor vehicles | Electricity | 21 | Expired |
| US6093909A | Flow heater | Electricity | 18 | Expired |
| US5990459A | System for controlling a plurality of resistive heating elements | Physics | 18 | Expired |
| US6472645B1 | Air heating device | Electricity | 16 | Expired |
| US5562844A | Ptc heater radiator with frame members applying pressure to heaters | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6402943B1 | Diesel filter system | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6720536B2 | Electric heating device | Electricity | 13 | Expired |
| US8946599B2 | Electric heating device | Electricity | 12 | Active |
| US7012225B2 | Electric heating apparatus with housing | Electricity | 11 | Expired |
| US7667166B2 | Heat-generating element of a heating device | Electricity | 11 | Active |
| US8637796B2 | Electrical heating device and heat generating element of an electrical heating device | Performing Operations; Transporting | 10 | Active |
| US7098426B2 | Electric heating device with heating zones | Electricity | 9 | Expired |
| US7026584B2 | Electric heater with housing | Performing Operations; Transporting | 9 | Expired |
| US6919535B2 | Electric heating for motor vehicles | Electricity | 9 | Expired |
| US7777161B2 | Heat-generating element of a heating device | Electricity | 9 | Active |
| US9234677B2 | Electric heating device, in particular for motor vehicles | Electricity | 9 | Active |
| US9161391B2 | Electrical heating device | Electricity | 9 | Active |
| US8183505B2 | Heat-generating element for an electric heating device and method for the manufacture of the same | Electricity | 8 | Active |
| US7676144B2 | Heat-generating element of a heating device | Electricity | 8 | Active |
| US8174831B2 | Heating circuit and electronics assembly | Performing Operations; Transporting | 8 | Active |
| US6897416B2 | Air current interruption detection responsive to consumed PTC heater power | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7667165B2 | Electric heating device for motor vehicles | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US10429099B2 | Electric heating device and PTC heating element for such | Electricity | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.