Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372936 | Method for detecting biological activities in a specimen | Robert Fraatz, Hellfried Karpf | 1994-12-13 |
| 5266486 | Method and apparatus for detecting biological activities in a specimen | Robert Fraatz, Hellfried Karpf | 1993-11-30 |