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Patent applications and USPTO patent grants for Walther; Karl-Heinz.The latest application filed is for "method and device for producing and transferring diffractive microstructures to a printing material and printing press having the device".
Patent | Date |
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Method and device for producing and transferring diffractive microstructures to a printing material and printing press having the device Grant 9,573,359 - Fergen , et al. February 21, 2 | 2017-02-21 |
Method And Device For Producing And Transferring Diffractive Microstructures To A Printing Material And Printing Press Having The Device App 20140109782 - FERGEN; IMMANUEL ;   et al. | 2014-04-24 |
Method For Producing A Security Feature On A Flat Substrate App 20090274298 - SCHMITT-LEWEN; MARTIN ;   et al. | 2009-11-05 |
Device for drying printed sheets on offset printing presses Grant 4,449,453 - Staffer , et al. May 22, 1 | 1984-05-22 |
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