Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10317136 | Onsite ultra high purity chemicals or gas purification | Timothy Edward Conway, Vladimir Yliy Gershtein, Brian M. Lindenmuth, Thomas M. Booth | 2019-06-11 |
| 9216364 | Onsite ultra high purity chemicals or gas purification | Timothy Edward Conway, Vladimir Yliy Gershtein, Brian M. Lindenmuth, Thomas M. Booth | 2015-12-22 |
| 6628116 | Process and apparatus to remove stimulated echo artifacts caused by interactions of a preparation sequence with a gradient echo sequence in MR imaging | Robert Alan Kraft | 2003-09-30 |
| 5934104 | Multiple column nitrogen generators with oxygen coproduction | Zbigniew Tadeusz Fidkowski, Donn Michael Herron | 1999-08-10 |
| 5768914 | Process to produce oxygen and argon using divided argon column | Jianguo Xu | 1998-06-23 |
| 5675749 | Method and apparatus for controlling show cycles in a data processing system | Jay A. Hartvigsen, James B. Eifert, Wallace B. Harwood, III | 1997-10-07 |
| 5355682 | Cryogenic air separation process producing elevated pressure nitrogen by pumped liquid nitrogen | Rakesh Agrawal, Bruce K. Dawson, Jianguo Xu | 1994-10-18 |
| 4983194 | Production of high purity argon | Roger M. McGuinness, Rakesh Agrawal, Steven L. Feldman | 1991-01-08 |
| 4867773 | Cryogenic process for nitrogen production with oxygen-enriched recycle | Robert M. Thorogood, Thomas M. Roden | 1989-09-19 |
| 4861351 | Production of hydrogen and carbon monoxide | David M. Nicholas, Joseph P. Bushinsky | 1989-08-29 |
| 4857082 | Membrane unit turn-down control system | Stephen Paul DiMartino, Sr., Ruth A. Davis | 1989-08-15 |
| 4749393 | Process for the recovery of hydrogen/heavy hydrocarbons from hydrogen-lean feed gases | Howard C. Rowles | 1988-06-07 |
| 4732596 | Gas separation process | David M. Nicholas, Thomas M. Roden, Joseph P. Bushinsky | 1988-03-22 |
| 4654047 | Hybrid membrane/cryogenic process for hydrogen purification | Stephen Paul DiMartino, Sr., David M. Nicholas | 1987-03-31 |