Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6604367 | System for providing refrigeration for chemical processing | M. Mushtaq Ahmed | 2003-08-12 |
| 6415628 | System for providing direct contact refrigeration | M. Mushtaq Ahmed | 2002-07-09 |
| 6314757 | Cryogenic rectification system for processing atmospheric fluids | James R. Dray | 2001-11-13 |
| 5925158 | Gas recycle for float glass system | Joseph Alfred Weber, Dante Patrick Bonaquist | 1999-07-20 |
| 5888265 | Air separation float glass system | Dante Patrick Bonaquist, Joseph Alfred Weber | 1999-03-30 |
| 5775128 | Process for producing ammonia and recovering argon using low purity oxygen | Raymond Francis Drnevich | 1998-07-07 |
| 5771713 | Cryogenic rectification system for recovery of fluorine compounds | — | 1998-06-30 |
| 5626023 | Cryogenic rectification system for fluorine compound recovery using additive liquid | Yijian Jin | 1997-05-06 |
| 5546767 | Cryogenic rectification system for producing dual purity oxygen | James R. Dray, David R. Parsnick, Michael W. Wisz | 1996-08-20 |
| 5502969 | Cryogenic rectification system for fluorine compound recovery | Yijian Jin | 1996-04-02 |
| 5228297 | Cryogenic rectification system with dual heat pump | Raymond R. Olson, Jr. | 1993-07-20 |
| 5106399 | Argon purification system | — | 1992-04-21 |
| 4805414 | Process to recover hydrogen-free higher boiling synthesis gas component | — | 1989-02-21 |
| 4778498 | Process to produce high pressure methane gas | Thomas C. Hanson, Joseph Alfred Weber | 1988-10-18 |
| 4710212 | Process to produce high pressure methane gas | Thomas C. Hanson, Joseph Alfred Weber | 1987-12-01 |
| 4701200 | Process to produce helium gas | Thomas C. Hanson, Joseph Alfred Weber | 1987-10-20 |
| 4701201 | Process to produce cold helium gas for liquefaction | Thomas C. Hanson, Joseph Alfred Weber, Ravindra F. Pahade | 1987-10-20 |
| 4336045 | Acetylene removal in ethylene and hydrogen separation and recovery process | John B. Saunders | 1982-06-22 |
| 4291636 | Solid refuse disposal process | Victor Emmanuel Bergsten, Edward P. Eardley | 1981-09-29 |