Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660807 | Process for the removal of HCN from gas mixtures | Wolfgang Forg, Michael Heisel, Dietrich Maschmeyer, Robert J. Walter | 1997-08-26 |
| 5413627 | Process for the selective removal of inorganic and/or organic sulfur compounds | Heiner Landeck | 1995-05-09 |
| 5133954 | Process for regenerating a scrubbing agent loaded with H.sub.2 S and/or COS | Gunter Weber | 1992-07-28 |
| 4938783 | Process for the purification of crude gases with simultaneous production of synthesis gas and fuel gas | Horst Weiss | 1990-07-03 |
| 4881960 | Fractionation of a hydrocarbon mixture | Elmar Diehl | 1989-11-21 |
| 4810267 | Scrubbing of gas to recover light hydrocarbons | Heiner Landeck | 1989-03-07 |
| 4797140 | Scrubbing of gas to recover light hydrocarbons | Heiner Landeck | 1989-01-10 |
| 4780115 | Process for removing undesirable components from gases | — | 1988-10-25 |
| 4713940 | Process for obtaining C.sub.2+ or C.sub.3+ hydrocarbons from gaseous mixtures | Friedrich Siegert | 1987-12-22 |
| 4690812 | Integrated production of ammonia and urea | Ulrich Schrader | 1987-09-01 |
| 4668488 | Process for the treatment of gases incurred in the manufacture of phosphorus | Heinz Karwat | 1987-05-26 |
| 4609384 | Multiple temperature level regeneration of CO.sub.2 from physical solvent | Horst Weiss | 1986-09-02 |
| 4592766 | Parallel stream heat exchange for separation of ethane and higher hydrocarbons from a natural or refinery gas | Paul Kumman | 1986-06-03 |
| 4533373 | Separation of CO.sub.2 and H.sub.2 S from hydrogen containing gas | Peter Butz, Tran A. Tvan | 1985-08-06 |
| 4530827 | Process for the simultaneous removal of H.sub.2 S, SO.sub.2 and elemental sulfur from gaseous mixtures | Michael Heisel | 1985-07-23 |
| 4478799 | Control of carbon monoxide partial pressure in sour gas absorption system | Georg Bengeser | 1984-10-23 |
| 4430316 | Scrubbing system yielding high concentration of hydrogen sulfide | Horst Weiss | 1984-02-07 |
| 4332596 | Energy efficient scrubbing of sulfur compounds from moist gaseous mixtures | Friedrich Siegert | 1982-06-01 |
| 4324567 | Separation of gaseous components from a gaseous mixture by physical scrubbing | Horst Weiss | 1982-04-13 |
| 4305733 | Method of treating natural gas to obtain a methane rich fuel gas | Walter Scholz, Hans Becker, Boris G. Bergo, Alexander I. Grizenko, Alexej V. Frolov | 1981-12-15 |
| 4276057 | Process for treating pressurized gases to remove unwanted components | Hans Becker, Peter Grimm, Dieter Roth | 1981-06-30 |