Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6297346 | Mixtures of cyclic oligocarbonates, their production and use | Burkhard Kohler, Yun Chen, Harald Pielartzik, Robert J. Kumpf | 2001-10-02 |
| 6156871 | Mixtures of cyclic oligocarbonates, their production and use | Burkhard Kohler, Yun Chen, Harald Pielartzik, Robert J. Kumpf | 2000-12-05 |
| 5786440 | Mixtures of cyclic oligocarbonates and their manufacture | Burkhard Kohler, Yun Chen, Harald Pielartzik, Robert J. Kumpf | 1998-07-28 |
| 5726273 | Heat-curable compositions based on cyclic isocyanate addition reproducts | Douglas A. Wicks, Robert J. Kumpf, Sze-Ming Lee, Philip E. Yeske | 1998-03-10 |
| 5693722 | Method for modifying the backbone of polymeric resins | Burkhard Kohler, Robert J. Kumpf, Harald Pielartzik | 1997-12-02 |
| 5663274 | Heat-curable compositions based on cyclic isocyanate addition products | Sze-Ming Lee, Philip E. Yeske, Robert J. Kumpf, Douglas A. Wicks | 1997-09-02 |
| 5637655 | Method for modifying the backbone of polymeric resins | Robert J. Kumpf | 1997-06-10 |
| 5605979 | Method for modifying the backbone of polymeric resins | Robert J. Kumpf | 1997-02-25 |
| 5387629 | Phosphorus containing poly(arylene ether)s useful as oxygen plasma resistant films and in nonlinear optical applications | James E. McGrath, Carrington Duane Smith, Timothy L. Pickering | 1995-02-07 |