Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6415943 | Collapsible container | — | 2002-07-09 |
| 6354473 | Closing valve for a container | Hubertus Josef F. Hanssen, Edwin Nieuwenhuizen | 2002-03-12 |
| 6036046 | Collapsible container | — | 2000-03-14 |
| 5374383 | Method of forming an article consisting of a foam core and one or more covering layers | — | 1994-12-20 |
| 5192482 | Method of producing a local reinforcement in a sandwich structure | — | 1993-03-09 |
| 5186999 | Sandwich material provided with a local reinforcement | — | 1993-02-16 |
| 5128201 | Foamable foil and method of making same | — | 1992-07-07 |
| 5043127 | Method of making a shaped article from a sandwich construction | — | 1991-08-27 |
| 5032443 | Method of making an article from a thermoplastic sandwich material | Bartjan Rietdijk | 1991-07-16 |
| 4889763 | Sandwich material and the use thereof | — | 1989-12-26 |
| 4826723 | Sandwich construction and a method of making a sandwich construction | — | 1989-05-02 |