Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216945 | Apparatus for preparation of a flavoring agent | Sven Heyland, Karl Rolli, Jaak J. Sihver | 1993-06-08 |
| 4965085 | Preparation of a seasoning | Sven Heyland, Karl Rolli, Jaak J. Sihver | 1990-10-23 |
| 4879130 | Process for preparation of a flavoring agent | Sven Heyland, Karl Rolli, Jaak J. Sihver | 1989-11-07 |