Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6869463 | Method for rapid activation or preconditioning of porous gas purification substrates | Jeffrey J. Spiegelman, Joshua T. Cook | 2005-03-22 |
| 6664111 | Fluorescence based oxygen sensor systems | James G. Bentsen, Ralph R. Roberts, Orlin B. Knudson, Michael John Rude | 2003-12-16 |
| 6645898 | Method for purification of lens gases used in photolithography | Jeffrey J. Spiegelman | 2003-11-11 |
| 6638341 | Method for rapid activation or preconditioning of porous gas purification substrates | Jeffrey J. Spiegelman, Joshua T. Cook | 2003-10-28 |
| 6524544 | Self-regenerative process for contaminant removal from ammonia | Jeffrey J. Spiegelman | 2003-02-25 |
| 6408849 | Recovery and purification of gases used in medical processes | Jeffrey J. Spiegelman, Peter K. Shogren, Joshua T. Cook | 2002-06-25 |
| 6391090 | Method for purification of lens gases used in photolithography | Jeffrey J. Spiegelman | 2002-05-21 |
| 6361696 | Self-regenerative process for contaminant removal from liquid and supercritical CO2 fluid streams | Jeffrey J. Spiegelman, Peter K. Shogren, Joshua T. Cook | 2002-03-26 |
| 6241955 | Method and apparatus for purification of hydride gas streams | — | 2001-06-05 |
| 6059859 | Method, composition and apparatus for water removal from non-corrosive gas streams | Jeffrey J. Spiegelman | 2000-05-09 |
| 5910292 | Method for water removal from corrosive gas streams | Jeffrey J. Spiegelman | 1999-06-08 |