Issued Patents All Time
Showing 26–50 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8747980 | Hollow fiber apparatus and use thereof for fluids separations and heat and mass transfers | Stephen Etter, Nathaniel Ching | 2014-06-10 |
| 6923846 | Method of preparing composite gas separation membranes from perfluoropolymers | Joyce K. Nelson, James Timothy Macheras | 2005-08-02 |
| 6814780 | Hollow fiber membrane gas separation cartridge and gas purification assembly | Scott Andrew Bartholomew, Salvatore Giglia, Bradley Quinn Johnson | 2004-11-09 |
| 6790263 | Polymide gas separation membranes | Yong Ding, Joyce K. Nelson | 2004-09-14 |
| 6776820 | Integral hollow fiber membrane gas dryer and filtration device | Scott Andrew Bartholomew, Salvatore Giglia, Bradley Quinn Johnson | 2004-08-17 |
| 6755894 | Hollow fiber membrane gas separation cartridge and gas purification assembly | Scott Andrew Bartholomew, Salvatore Giglia, Bradley Quinn Johnson | 2004-06-29 |
| 6740140 | Hollow fiber membrane system assembly with an internal reflux system | Salvatore Giglia, Bradley Quinn Johnson | 2004-05-25 |
| 6740728 | Methods for the preparation of polyesters, poly(ester amide)s and poly(ester imide)s and uses of the materials obtained therefrom | Yong Ding | 2004-05-25 |
| 6723152 | Gas separation using membranes formed from blends of perfluorinated polymers | Yong Ding, Johann Katz Leroux, Joyce K. Nelson | 2004-04-20 |
| 6716270 | Polyimide amic acid salts and polyimide membranes formed therefrom | Yong Ding, Joyce K. Nelson, James Timothy Macheras | 2004-04-06 |
| 6540813 | Method of preparing composite gas separation membranes from perfluoropolymers | Joyce K. Nelson, James Timothy Macheras | 2003-04-01 |
| 6497747 | Production and use of improved polyimide separation membranes | Yong Ding, Joyce K. Nelson | 2002-12-24 |
| 5964925 | Sulfonated polyimide gas separation membranes | Yurdagul F. Ozcayir, Gertrud Goetz | 1999-10-12 |
| 5910274 | Method of preparing membranes from blends of polymers | James Timothy Macheras, Joyce K. Nelson | 1999-06-08 |
| 5897729 | Process of making a structure enhancing hollow fiber module | Salvatore Giglia, Patrick Nicolas, Cheryl Ford | 1999-04-27 |
| 5891572 | Method of preparing membranes from blends of polymers | James Timothy Macheras, Joyce K. Nelson | 1999-04-06 |
| 5871680 | Method and apparatus for spinning hollow fiber membranes | James Timothy Macheras, Thomas Anthony Bolan | 1999-02-16 |
| 5837033 | Hollow fiber membrane separation apparatus | Salvatore Giglia | 1998-11-17 |
| 5733657 | Method of preparing membranes from blends of polymers | James Timothy Macheras, Joyce K. Nelson | 1998-03-31 |
| 5725633 | Sulfonated polyimide gas separation membranes | Yurdagul F. Ozcayir, Gertrud Goetz | 1998-03-10 |
| 5702601 | Structure enhancing hollow fiber module | Salvatore Giglia, Patrick Samuel Nicholas, Jr., Cheryl Ford | 1997-12-30 |
| 5618334 | Sulfonated polyimide gas separation membranes | Yurdagul F. Ozcayir, Gertrud Goetz | 1997-04-08 |
| 5443728 | Method of preparing membranes from blends of polyetherimide and polyimide polymers | James Timothy Macheras, Joyce K. Nelson | 1995-08-22 |
| 5411662 | Fluid separation assembly having an purge control valve | Patrick Nicolas, Salvatore Giglia, David R. Thompson | 1995-05-02 |
| 5364454 | Fluid separation composite membranes prepared from sulfonated aromatic polymers in lithium salt form | Joyce K. Nelson | 1994-11-15 |