Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7096977 | Pipe running tool | Daniel Juhasz, George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst +1 more | 2006-08-29 |
| 6938709 | Pipe running tool | Daniel Juhasz, George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst +1 more | 2005-09-06 |
| 4898142 | Combustion engine with fuel injection system, and a spray valve for such an engine | Gerrit J. Beunk, Frits Van Den Elst, Arie Van Der Ploeg | 1990-02-06 |