Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11827834 | Thermal pump refrigerants | Richard Powell | 2023-11-28 |
| 11459497 | Low GWP refrigerant blends | Richard Powell | 2022-10-04 |
| 10253233 | Non-ozone depleting and low global warming refrigerant blends | Richard Powell | 2019-04-09 |
| 9708522 | Refrigerant | Richard Powell | 2017-07-18 |
| 9624414 | Refrigerant | Richard Powell | 2017-04-18 |
| 9062237 | Refrigerant composition | Richard Powell | 2015-06-23 |
| 9023231 | Non ozone depleting and low global warming potential refrigerants for low temperature refrigeration | Richard Powell | 2015-05-05 |
| 8551354 | Refrigerant composition | Richard Powell | 2013-10-08 |
| 8465664 | Refrigerant composition | Richard Powell | 2013-06-18 |
| 7972528 | Refrigerant composition | Richard Powell | 2011-07-05 |
| 7922881 | Sputtering target with an insulating ring and a gap between the ring and the target | Eugene Y. Ivanov, Erich Theado, Harry W. Conard | 2011-04-12 |
| 7712514 | Sputter targets and methods of manufacturing same to reduce particulate emission during sputtering | Charles Wickersham, Alexander Leybovich, Lin Zhu | 2010-05-11 |
| 7087142 | Method for determining a critical size of an inclusion in aluminum or aluminum alloy sputtering target | Charles Wickersham, Alexander Leybovich, Lin Zhu | 2006-08-08 |
| 7063773 | High purity sputter targets with target end-of-life indication and method of manufacture | Eugene Y. Ivanov, David B. Smathers, Charles Wickersham | 2006-06-20 |
| 6991743 | Refrigerant for centrifugal compressors | Richard Powell, James Victor Thomas | 2006-01-31 |
| 6629419 | CFC 12 replacement refrigerant | Richard Powell, John Derek Capper, James Victor Thomas | 2003-10-07 |
| 6606868 | R 22 replacement refrigerant | Richard Powell, John Derek Capper, James Victor Thomas | 2003-08-19 |
| 6604368 | R 12 replacement refrigerant | Richard Powell, John Derek Capper, James Victor Thomas | 2003-08-12 |
| 4783379 | Explosive crystallization in metal/silicon multilayer film | Charles Wickersham | 1988-11-08 |