Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4941942 | Method of manufacturing a mask support of sic for x-ray lithography masks | Angelika Bruns, Margret Harms, Holger Luthje | 1990-07-17 |
| 4606803 | Method of manufacturing a mask for the production of patterns in lacquer layers by means of X-ray lithography | Holger Luthje, Angelika Bruns, Margret Harms | 1986-08-19 |
| 4555460 | Mask for the formation of patterns in lacquer layers by means of X-ray lithography and method of manufacturing same | Margret Harms, Angelika Bruns, Holger Luthje | 1985-11-26 |
| 4468799 | Radiation lithography mask and method of manufacturing same | Margret Harms, Holger Luthje | 1984-08-28 |