Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440306 | Large pore synthetic polymer membranes | Richard A. Morris, Robert Zepf | 2002-08-27 |
| 6277281 | Large pore synthetic polymer membranes | Richard A. Morris, Robert Zepf | 2001-08-21 |
| 6146747 | Highly porous polyvinylidene difluoride membranes | I-Fan Wang, Robert Zepf | 2000-11-14 |
| 6110369 | Large pore synthetic polymer membranes | Richard A. Morris, Robert Zepf | 2000-08-29 |
| 6110309 | Process of making a polyvinylidene difluoride membrane | I-Fan Wang, Robert Zepf | 2000-08-29 |
| 5979670 | Large pore synthetic polymer membranes | Richard A. Morris, Robert Zepf | 1999-11-09 |
| 5958989 | Highly asymmetric ultrafiltration membranes | I-Fan Wang, Richard A. Morris, Robert E. Kesting | 1999-09-28 |
| 5928774 | Highly asymmetric ultrafiltration membranes | I-Fan Wang, Richard A. Morris, Robert E. Kesting | 1999-07-27 |
| 5906742 | Microfiltration membranes having high pore density and mixed isotropic and anisotropic structure | I-Fan Wang, Rick Morris | 1999-05-25 |
| 5846422 | Large pore synthetic polymer membranes | Richard A. Morris, Robert Zepf | 1998-12-08 |
| 5834107 | Highly porous polyvinylidene difluoride membranes | I-Fan Wang, Robert Zepf | 1998-11-10 |
| 4774038 | Polyamide membranes | Jeffrey J. Porter | 1988-09-27 |