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Friedrich W. Thomas
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Gelnhausen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Device for the detection of the temperature course of a metal or me...
Patent number
5,100,111
Issue date
Mar 31, 1992
Leybold Aktiengesellschaft
Friedrich W. Thomas
G01 - MEASURING TESTING
Information
Patent Grant
Device for recognizing the impact site of a charge carrier beam on...
Patent number
5,051,599
Issue date
Sep 24, 1991
Leybold Aktiengesellschaft
Ewald Benes
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Device for a unipolarly operated electrical circuit component
Patent number
5,047,911
Issue date
Sep 10, 1991
Leybold Aktiengesellschaft
Wolfgang Sperzel
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Directly heatable crucible for induction melting furnaces
Patent number
5,022,044
Issue date
Jun 4, 1991
Leybold Aktiengesellschaft
Friedrich-Werner Thomas
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Measurement sensor for the detection of temperatures in metal or al...
Patent number
4,995,733
Issue date
Feb 26, 1991
Leybold Aktiengesellschaft
Friedrich-Werner Thomas
G01 - MEASURING TESTING
Information
Patent Grant
Device and method for the control and monitoring of an electron bea...
Patent number
4,973,818
Issue date
Nov 27, 1990
Leybold Aktiengesellschaft
Harald Bittenbrunn
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process and apparatus for controlling the reactive deposit of coati...
Patent number
4,895,631
Issue date
Jan 23, 1990
Leybold Aktiengesellschaft
Peter Wirz
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Apparatus for detecting the position of incidence of a beam of char...
Patent number
4,843,246
Issue date
Jun 27, 1989
Leybold-Heraeus GmbH
Ewald Benes
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for measuring the monocrystal diameter and the...
Patent number
4,832,496
Issue date
May 23, 1989
Leybold-Heraeus GmbH
Friedrich W. Thomas
C30 - CRYSTAL GROWTH
Information
Patent Grant
Apparatus for controlling the operation of tipping a melting crucible
Patent number
4,823,263
Issue date
Apr 18, 1989
Leybold-Heraeus
Friedrich-Werner Thomas
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Apparatus for controlling the distance of a melting electrode from...
Patent number
4,797,897
Issue date
Jan 10, 1989
Leybold Aktiengesellschaft
Otto Stenzel
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Power supply apparatus
Patent number
4,787,023
Issue date
Nov 22, 1988
Leybold-Heraeus GmbH
Friedrich-Werner Thomas
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Inverter with power supply to chopper through parallel resonant cir...
Patent number
4,748,311
Issue date
May 31, 1988
Leybold Aktiengesellschaft
Friedrich-Werner Thomas
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Direct-current-alternating-current inverter comprising a load which...
Patent number
4,700,281
Issue date
Oct 13, 1987
Leybold-Heraeus GmbH
Gernot Thorn
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method and voltage source for producing a smoothed voltage from thr...
Patent number
4,320,305
Issue date
Mar 16, 1982
Leybold-Heraeus GmbH
Friedrich W. Thomas
G05 - CONTROLLING REGULATING
Information
Patent Grant
System for controlling the power of a high-voltage electron beam ge...
Patent number
4,314,182
Issue date
Feb 2, 1982
Leybold-Heraeus GmbH
Friedrich W. Thomas
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and system for regulating the discharge process in a cathode...
Patent number
4,283,260
Issue date
Aug 11, 1981
Leybold-Heraeus
Friedrich W. Thomas
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Apparatus for regulating the depth of immersion of consumable elect...
Patent number
4,194,078
Issue date
Mar 18, 1980
Leybold-Heraeus GmbH & Co. KG
Friedrich W. Thomas
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...