| 5215554 |
Membranes having enhanced selectivity and method of producing such membranes |
Paul W. Kramer, Donald J. Stookey, Jay Henis, Erwin R. Stedronsky |
1993-06-01 |
| 4880441 |
Asymmetric gas separation membranes having graded density skins |
Robert E. Kesting, Alfred K. Fritzsche, Alan Handerman, Clint A. Cruse, Raymond F. Malon |
1989-11-14 |
| 4871494 |
Process for forming asymmetric gas separation membranes having graded density skins |
Robert E. Kesting, Alfred K. Fritzsche, Alan C. Handermann, Clint A. Cruse, Raymond F. Malon |
1989-10-03 |
| 4793830 |
Process for producing high quality gas for instrumentation application using gas separation membranes |
Arthur W. Rice, John J. Freeman |
1988-12-27 |
| 4783202 |
Polyphosphazene membrane separation of polar from non-polar fluids |
Menahem Kraus |
1988-11-08 |
| 4783201 |
Gas dehydration membrane apparatus |
Arthur W. Rice |
1988-11-08 |
| 4728346 |
Permeation modified asymmetric gas separation membranes having graded density skins |
— |
1988-03-01 |
| 4728345 |
Multicomponent gas separation membranes having polyphosphazene coatings |
— |
1988-03-01 |
| 4710204 |
Polyphosphazene gas separation membranes |
Menahem Kraus |
1987-12-01 |