Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10287509 | Oil conditioning unit and process | Stephen R. David | 2019-05-14 |
| 9115318 | Hydrocracking process with integral intermediate hydrogen separation and purification | Ali Hasan Al-Abdulal, Vinod Ramaseshan | 2015-08-25 |
| 9017547 | Hydrogen purification for make-up gas in hydroprocessing processes | Ali H. Al-Abdulai | 2015-04-28 |
| 8968552 | Hydrotreating and aromatic saturation process with integral intermediate hydrogen separation and purification | Vinod Ramaseshan, Ali Hasan Al-Abdulal | 2015-03-03 |
| 6740226 | Process for increasing hydrogen partial pressure in hydroprocessing processes | Ali Hassan Al-Abdulal | 2004-05-25 |
| 5687584 | Absorption process with solvent pre-saturation | — | 1997-11-18 |
| 5681908 | Absorption process for rejection of reactor byproducts and recovery of monomers from waste gas streams in olefin polymerization processes | Robert H. Stodghill | 1997-10-28 |
| 5551972 | Absorption process without external solvent | Glenn C. Wood | 1996-09-03 |
| 5546764 | Absorption process for recovering ethylene and hydrogen from refinery and petrochemical plant off-gases | — | 1996-08-20 |
| 5521264 | Gas phase olefin polymerization process with recovery of monomers from reactor vent gas by absorption | Robert H. Stodghill | 1996-05-28 |
| 5462583 | Absorption process without external solvent | Glenn C. Wood | 1995-10-31 |
| 5326929 | Absorption process for hydrogen and ethylene recovery | Wilfred K. Lam, Dow W. Mullins | 1994-07-05 |
| 5224350 | Process for recovering helium from a gas stream | — | 1993-07-06 |
| 5220097 | Front-end hydrogenation and absorption process for ethylene recovery | Wilfred K. Lam, Don Mullins | 1993-06-15 |
| 4883514 | Processing nitrogen-rich gases with physical solvents | — | 1989-11-28 |
| 4883515 | Processing hydrocarbon gases with selected physical solvents | Freylon B. Coffey | 1989-11-28 |
| 4832718 | Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents | — | 1989-05-23 |
| 4743282 | Selective processing of gases containing olefins by the mehra process | — | 1988-05-10 |
| 4696688 | Conversion of lean oil absorption process to extraction process for conditioning natural gas | — | 1987-09-29 |
| 4692179 | Process for using alkyl substituted C8-C10 aromatic hydrocarbons as preferential physical solvents for selective processing of hydrocarbon gas streams | — | 1987-09-08 |
| 4680042 | Extractive stripping of inert-rich hydrocarbon gases with a preferential physical solvent | — | 1987-07-14 |
| 4623371 | Utilizing the Mehra process for processing and BTU upgrading of nitrogen-rich natural gas streams | — | 1986-11-18 |
| 4617038 | Process for using preferential physical solvents for selective processing of hydrocarbon gas streams | — | 1986-10-14 |
| 4601738 | Process for freeze protection and purification of natural gas liquid product streams produced by the Mehra process | — | 1986-07-22 |
| 4578094 | Hydrocarbon separation with a physical solvent | — | 1986-03-25 |