Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621022 | Expandable plastics granular material having at least one orifice | Werner Weber, Herman Groenendijk, Adrianus C. Poppelaars, Wilhelmus H. J. Janssen | 1986-11-04 |
| 4599269 | Foamable plastics granules and packaging material prepared therefrom | Werner Weber, Herman Groenendijk, Adrianus C. Poppelaars, Wilhelmus H. J. Janssen | 1986-07-08 |
| 4269895 | Free-flowing packing material of foamed plastics particles | Herbert Borchert, Walter Albert, Ulrich Schulte, Bruno Rapp | 1981-05-26 |