Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497900 | Effervescent base | Gerhard Gergely, Irmgard Gergely, Stefan Gergely | 2002-12-24 |
| 6432450 | Effervescent granules with delayed effervescent effect | Gerhard Gergely, Irmgard Gergely | 2002-08-13 |