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Patent applications and USPTO patent grants for Prange; Wilfried.The latest application filed is for "method for producing a sheet steel product protected against corrosion".
Patent | Date |
---|---|
Method for producing a sheet steel product protected against corrosion App 20090139872 - Weiher; Nicole ;   et al. | 2009-06-04 |
Process and apparatus for the continuous welding of strips guided in abutment by a laser beam Grant 5,204,505 - Prange , et al. April 20, 1 | 1993-04-20 |
Laser butt-welding device and method Grant 5,190,204 - Jack , et al. March 2, 1 | 1993-03-02 |
Process for the production of a shaped part from pieces of sheet metal of different thicknesses Grant 4,902,872 - Frings , et al. February 20, 1 | 1990-02-20 |
Apparatus for the continuous welding of strips and/or sheets Grant 4,872,940 - Strum , et al. October 10, 1 | 1989-10-10 |
Process for the production of a shaped parts from pieces of sheet metal of different thicknesses Grant 4,827,100 - Frings , et al. May 2, 1 | 1989-05-02 |
Process for the butt-welding of especially deep-drawable steel sheets or steel strips galvanized at least on one side Grant 4,650,954 - Frings , et al. March 17, 1 | 1987-03-17 |
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