Friedrich-Werner Thomas
21Patents
8h-index
22Co-inventors
75Inventor score
Filing activity: Dec 20, 1974 → Dec 30, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5047911A | Device for a unipolarly operated electrical circuit component | Electricity | 25 | Expired |
| US4843246A | Apparatus for detecting the position of incidence of a beam of charge carriers on a target | Performing Operations; Transporting | 17 | Expired |
| US4283260A | Method and system for regulating the discharge process in a cathode sputtering apparatus | Chemistry; Metallurgy | 14 | Expired |
| US4895631A | Process and apparatus for controlling the reactive deposit of coatings on substrates by means of magnetron cathodes | Electricity | 14 | Expired |
| US4194078A | Apparatus for regulating the depth of immersion of consumable electrodes in electroslag remelting furnaces | Electricity | 10 | Expired |
| US4748311A | Inverter with power supply to chopper through parallel resonant circuit tuned to twice the chopper frequency | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4075414A | Apparatus for regulating the immersion depth of electrodes in electrode-melting furnaces | Electricity | 10 | Expired |
| US4797897A | Apparatus for controlling the distance of a melting electrode from the surface of the melted material in a vacuum arc furnace | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5100111A | Device for the detection of the temperature course of a metal or metal alloy melt using measurement techniques | Physics | 7 | Expired |
| US4973818A | Device and method for the control and monitoring of an electron beam for metal working | Electricity | 7 | Expired |
| US4832496A | Method and apparatus for measuring the monocrystal diameter and the melt level during crucible drawing in the Czochralski process | Physics | 7 | Expired |
| US5022044A | Directly heatable crucible for induction melting furnaces | Electricity | 6 | Expired |
| US5051599A | Device for recognizing the impact site of a charge carrier beam on a target | Performing Operations; Transporting | 6 | Expired |
| US4995733A | Measurement sensor for the detection of temperatures in metal or alloy melts | Physics | 5 | Expired |
| US4700281A | Direct-current-alternating-current inverter comprising a load which gains by forcing an output voltage of the direct-current-alternating-current inverter having a defined wave shape and frequency | Electricity | 5 | Expired |
| US4823263A | Apparatus for controlling the operation of tipping a melting crucible | Performing Operations; Transporting | 5 | Expired |
| US4320305A | Method and voltage source for producing a smoothed voltage from three-phase current | Physics | 4 | Expired |
| US4787023A | Power supply apparatus | Electricity | 3 | Expired |
| US4314182A | System for controlling the power of a high-voltage electron beam generator | Electricity | 3 | Expired |
| US3952139A | Circuit arrangement for supplying electrode melting furnaces | Chemistry; Metallurgy | 1 | Expired |
| US11441290B2 | Quick-hitch for construction vehicle tools | Fixed Constructions | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.