Issued Patents All Time
Showing 25 most recent of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D854132 | Corrugated steel structure | Izak Nieuwoudt | 2019-07-16 |
| 9920988 | Main heat exchange system and method for reboiling | Vijayaraghavan S. Chakravarthy, Dante Patrick Bonaquist, Maulik R. Shelat, Karl K. Kibler | 2018-03-20 |
| 9453674 | Main heat exchange system and method for reboiling | Vijayaraghavan S. Chakravarthy, Dante Patrick Bonaquist, Maulik R. Shelat, Karl K. Kibler | 2016-09-27 |
| 8540878 | Structured packing module for mass transfer column and process involving same | Izak Nieuwoudt | 2013-09-24 |
| 8298412 | Structured packing module for mass transfer column and process involving same | Izak Nieuwoudt | 2012-10-30 |
| 7421856 | Cryogenic air separation with once-through main condenser | Vijayaraghavan S. Chakravarthy, Richard John Jibb, John Henri Royal | 2008-09-09 |
| 7081802 | System for cooling a power transformer | Dante Patrick Bonaquist, John Henri Royal | 2006-07-25 |
| 6742342 | System for cooling a power transformer | Dante Patrick Bonaquist, John Henri Royal | 2004-06-01 |
| 6666046 | Dual section refrigeration system | Richard John Jibb, Vijayaraghavan S. Chakravarthy | 2003-12-23 |
| 6578829 | Packing for mass transfer column | Christoph Ender, John Fredric Billingham, Neil Yeoman, Robert Kuratle, Kirk Walztoni +1 more | 2003-06-17 |
| 6478290 | Packing for mass transfer column | Christoph Ender, John Fredric Billingham, Neil Yeoman, Robert Kuratle, Kirk Walztoni +1 more | 2002-11-12 |
| 6393866 | Cryogenic condensation and vaporization system | Vijayaraghavan Srinivasan | 2002-05-28 |
| 6378332 | Packing with low contacting crimp pattern | John Fredric Billingham | 2002-04-30 |
| 6321567 | Structured packing system for reduced distillation column height | John Fredric Billingham | 2001-11-27 |
| 6314756 | Structured packing with asymmetric crimp pattern | John Fredric Billingham | 2001-11-13 |
| 6272884 | Rapid restart system for cryogenic air separation plant | John Fredric Billingham, Dante Patrick Bonaquist, James R. Dray, Robert A. Beddome | 2001-08-14 |
| 6212907 | Method for operating a cryogenic rectification column | John Fredric Billingham, Daniel Mark Seiler | 2001-04-10 |
| 6101841 | Cryogenic rectification system with high strength and high capacity packing | John Fredric Billingham | 2000-08-15 |
| 6079223 | Cryogenic air separation system for producing moderate purity oxygen and moderate purity nitrogen | Vijayaraghavan Srinivasan, Minish Mahendra Shah, Andrew Chun-Pong Lau | 2000-06-27 |
| 6044902 | Heat exchange unit for a cryogenic air separation system | Ravi Fulchand Pahade, Bayram Arman | 2000-04-04 |
| 5934105 | Cryogenic air separation system for dual pressure feed | Dante Patrick Bonaquist | 1999-08-10 |
| 5921109 | Method for operating a cryogenic rectification column | John Billingham, Daniel Mark Seiler | 1999-07-13 |
| 5901578 | Cryogenic rectification system with integral product boiler | Kenneth Kai Wong, Dante Patrick Bonaquist, Vijayaraghavan Srinivasan, John K. Howell, Jr. | 1999-05-11 |
| 5857357 | Column configuration and method for argon production | Dante Patrick Bonaquist | 1999-01-12 |
| 5836174 | Cryogenic rectification system for producing multi-purity oxygen | John Fredric Billingham, Dante Patrick Bonaquist | 1998-11-17 |