Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618480 | Process of making multifilament yarn, monofilament or film of polyethylene naphthalate | Christiaan Jurriaan Maria van den Heuvel, Anton Peter De Weijer, Hendrik Middeljans | 1997-04-08 |
| 5466525 | Multifilament yarn of polyethylene naphthalate and method for producing said yarn | Christiaan J. Maria, Anton Peter De Weijer, Hendrik Middeljans | 1995-11-14 |