| 5958989 |
Highly asymmetric ultrafiltration membranes |
I-Fan Wang, Jerome F. Ditter, Richard A. Morris |
1999-09-28 |
| 5928774 |
Highly asymmetric ultrafiltration membranes |
I-Fan Wang, Jerome F. Ditter, Richard A. Morris |
1999-07-27 |
| 5685991 |
Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same |
Peter J. Degen, John Mischenko, III, Moira H. Bilich, Trevor A. Staff |
1997-11-11 |
| 5480554 |
Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same |
Peter J. Degen, John Mischenko, III, Moira H. Bilich, Trevor A. Staff |
1996-01-02 |
| 4880441 |
Asymmetric gas separation membranes having graded density skins |
Alfred K. Fritzsche, Milton K. Murphy, Alan Handerman, Clint A. Cruse, Raymond F. Malon |
1989-11-14 |
| 4871494 |
Process for forming asymmetric gas separation membranes having graded density skins |
Alfred K. Fritzsche, Milton K. Murphy, Alan C. Handermann, Clint A. Cruse, Raymond F. Malon |
1989-10-03 |
| 4477598 |
High strength nylon blend membranes |
— |
1984-10-16 |
| 4450126 |
High strength nylon blend membranes |
— |
1984-05-22 |
| 4333972 |
Highly anisotropic membranes |
— |
1982-06-08 |
| 4280970 |
Polyoxyethylene grafted membrane materials with grafting links derived from a diisocyanate |
— |
1981-07-28 |
| 4220477 |
Flexible microporous cellulosic membranes and methods of formation and use thereof |
— |
1980-09-02 |
| 4219517 |
Process for spinning dense hollow fiber cellulosic membrane |
— |
1980-08-26 |