Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5489667 | Polyetheresteramides and process for making and using the same | Karl-Heinz Hapelt, Eduard De Jong | 1996-02-06 |
| 4774139 | Thermoplastic polymer | Karl-Heinz Hapelt | 1988-09-27 |
| 4483975 | Copolyetheresteramides, process for their production and their use for the heat-sealing of textiles | Eduard De Jong, Karl-Heinz Hapelt | 1984-11-20 |