Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599483 | Model pressurized reaction vehicle | Volkhard Seiffert | 2003-07-29 |
| 5012197 | Apparatus and method for determining the relative percentages of components in a mixture | Volkhard Seiffert, Klaus Bienert | 1991-04-30 |