Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5223712 | Closed loop ionization apparatus for detecting trace gases | Horst Adams, Dirk Hoffmeyer | 1993-06-29 |
| 4264141 | Method and arrangement of apparatus for frequency shifting a monochromatic narrow bandwidth light beam | Karl Guers | 1981-04-28 |