Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6302056 | Device for coating substrates with a material vapor in negative pressure or vacuum | Brunhilde Hasse | 2001-10-16 |
| 4859222 | Method for the manufacture of a light wave guide | Hartmut Bauch, Peter Krause, Ulrike Jost, Ralf Kersten, Volker Paquet | 1989-08-22 |
| 4851025 | Process for producing a planar optical waveguide | Ralf Kersten | 1989-07-25 |
| 4765819 | Method for making planar lightwave guides | Ralf Kersten | 1988-08-23 |
| 4756734 | Methods of making planar lightwave guides | Ralf Kersten | 1988-07-12 |