Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618480 | Process of making multifilament yarn, monofilament or film of polyethylene naphthalate | Christiaan Jurriaan Maria van den Heuvel, Hendrik Middeljans, Herman M. Heuvel | 1997-04-08 |