Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6637998 | Self evacuating micro environment system | John Giles Langan, Wayne Thomas McDermott | 2003-10-28 |
| 6572681 | Purification of gases | Timothy Christopher Golden, Alexander Schwarz, Fred William Taylor | 2003-06-03 |
| 6514471 | Removing fluorine from semiconductor processing exhaust gas | Howard Paul Withers, Jr. | 2003-02-04 |
| 6352676 | Abatement of F2 using small particle fluidized bed | Howard Paul Withers, Jr. | 2002-03-05 |
| 6106790 | Abatement of NF.sub.3 using small particle fluidized bed | Howard Paul Withers, Jr. | 2000-08-22 |
| 6093379 | Purification of gases | Timothy Christopher Golden, Alexander Schwarz, Fred William Taylor | 2000-07-25 |
| 6074621 | Purification of gases | Alexander Schwarz, Timothy Christopher Golden | 2000-06-13 |
| 6032484 | Recovery of perfluorinated compounds from the exhaust of semiconductor fabs with recycle of vacuum pump diluent | Iosif Chernyakov, Alexander Schwarz, James H. C. Yang | 2000-03-07 |
| 5993760 | Bulk nitrogen purification process that requires no hydrogen in the regeneration | John Bruce Wallace, Jr. | 1999-11-30 |
| 5976222 | Recovery of perfluorinated compounds from the exhaust of semiconductor fabs using membrane and adsorption in series | James H. C. Yang, Iosif Chernyakov, Alexander Schwarz | 1999-11-02 |
| 5958356 | Method for removal of moisture from gaseous HCl | Chun Christine Dong, Timothy Christopher Golden | 1999-09-28 |
| 5955044 | Method and apparatus for making ultra-pure hydrogen | Jeffrey Lucht | 1999-09-21 |
| 5863852 | Regeneration of adsorbent beds | John Bruce Wallace, Jr. | 1999-01-26 |
| 5737941 | Method and apparatus for removing trace quantities of impurities from liquified bulk gases | Jose Rui Souto Machado, Alexander Schwarz | 1998-04-14 |
| 5730779 | Fluorochemical recovery and recycle using membranes | Iosif Chernyakov, Alexander Schwarz, James H. C. Yang | 1998-03-24 |
| 5706674 | Argon recovery from silicon crystal furnace | Zbigniew Tadeusz Fidkowski, Rakesh Agrawal | 1998-01-13 |
| 5637285 | Process for nitrogen trifluoride synthesis | Daniel G. Coronell, Howard Paul Withers, Jr., Andrew J. Woytek | 1997-06-10 |
| 5218003 | Liquid phase process for dimethyl ether synthesis | John J. Lewnard, James F. White, Bharat Bhatt | 1993-06-08 |
| 4980145 | Liquid phase carbon monoxide shift process | Robert B. Moore, Robert F. Weimer | 1990-12-25 |
| 4946477 | IGCC process with combined methanol synthesis/water gas shift for methanol and electrical power production | Alan T. Perka, Joseph Klosek, Robert B. Moore | 1990-08-07 |
| 4829039 | Activation of methanol/low temperature shift catalysts using soluble organo-metallic reducing agents | James F. White | 1989-05-09 |
| 4801574 | In-situ activation of CuO/ZnO/Al.sub.2 O.sub.3 catalysts in the liquid phase | Dennis M. Brown, Pradip Rao, George W. Roberts | 1989-01-31 |
| 4526614 | Method for recovering platinum in a nitric acid plant | Bahjat S. Beshty, W. Robert Hatfield, Hyo C. Lee, Ronald M. Heck | 1985-07-02 |
| 4497657 | Method for recovering platinum in a nitric acid plant | William R. Hatfield, Ronald M. Heck | 1985-02-05 |
| 4412859 | Method for recovering platinum in a nitric acid plant | W. Robert Hatfield, Ronald M. Heck | 1983-11-01 |