Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5536831 | Obtaining caprolactam by cleavage of molten polycaprolactam | Michael Kopietz, Simon Jones, Ulrich Kalck, Claus-Ulrich Priester, Heinz Auer +3 more | 1996-07-16 | |
| 4880441 | Asymmetric gas separation membranes having graded density skins | Robert E. Kesting, Alfred K. Fritzsche, Milton K. Murphy, Clint A. Cruse, Raymond F. Malon | 1989-11-14 | $13,749,000 |