Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776964 | Sealing mat for closing reaction tubes | Bartholomeus Wilhelmus Kramer, Cornelis Johannes Verton | 2004-08-17 |
| 6270728 | Test tube with optically readable coding | Bartholomeus Wilhelmus Kramer | 2001-08-07 |
| 5111948 | Cap assembly and method for producing such an assembly | — | 1992-05-12 |