Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7762343 | Apparatus and method for handling pipe | Leendert Adriaan Marinus Sonneveld, Antonius Dimphena Maria Krijnen, Michael Antoon Herman Schats, Cornelis Wilhelmus Jacobus de Laat, Johannes Wilhelmus Henricus van Rijzingen | 2010-07-27 |
| 6845814 | Pipe-gripping structure having load rings | David Mason, Hans van Rijzingen, Anton Krijnen, Cornelis Wilhelmus Jacobus de Laat | 2005-01-25 |