Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6262185 | Use of high-molecular polyester moulding materials | Thomas Heitz, Herbert Fisch, Erich Pellkofer, Georg Schneider | 2001-07-17 |
| 6232435 | Polyalkylene arylates containing a high proportion of carboxyl end groups | Thomas Heitz, Helmut Heel, Martin Klatt | 2001-05-15 |
| 6174970 | Method of reprocessing residues containing dihydroxy compounds | — | 2001-01-16 |
| 5854377 | Continuous preparation of thermoplastic polyesters | — | 1998-12-29 |
| 5789500 | Process for preparing residues containing dihydroxy compounds | — | 1998-08-04 |
| 5610231 | Preparation of thermoplastic polyesters | — | 1997-03-11 |
| 5561218 | Working up residues containing dihydroxy compounds | — | 1996-10-01 |
| 5496887 | Preparation of thermoplastic polyesters having a low content of terminal carboxyl groups | — | 1996-03-05 |