Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6919059 | Process and apparatus for recovering sulphur from a gas stream containing sulphide | Stephen Rhys Graville | 2005-07-19 |
| 6893620 | Process and apparatus for recovering sulphur from a gas stream containing hydrogen sulphide | Stephen Rhys Graville | 2005-05-17 |
| 6638057 | Partial oxidation of hydrogen sulphide | Stephen Rhys Graville, Jason S. Norman | 2003-10-28 |
| 6616908 | Treatment of a gas stream containing hydrogen sulphide | Stephen Rhys Graville | 2003-09-09 |
| 6531109 | Treatment of a combustible gas stream | Stephen Rhys Graville | 2003-03-11 |
| 6517801 | Treatment of gas streams containing hydrogen sulphide | Stephen Rhys Graville, Vijay Ramanand Balse | 2003-02-11 |
| 6506357 | Sulphur recovery | Stephen Rhys Graville | 2003-01-14 |
| 6352680 | Partial combustion of hydrogen sulphide | Stephen Rhys Graville, John Allen Wainford | 2002-03-05 |
| 6312651 | Apparatus for burning a combustible gas containing hydrogen sulfide | Stephen Rhys Graville | 2001-11-06 |
| 6042803 | Method of reacting hydrogen sulfide to produce sulfur | — | 2000-03-28 |
| 5486345 | Treatment of gases | — | 1996-01-23 |
| 5468458 | Treatment of gas streams | — | 1995-11-21 |
| 5352433 | An oxygen enhanced split feedstream sulfur recovery process | — | 1994-10-04 |
| 5294428 | Double combustion oxygen enhanced sulfur recovery process | — | 1994-03-15 |
| 4853206 | Treatment of waste material | — | 1989-08-01 |
| 4256721 | Combustion method and apparatus | Philip G. Blakey | 1981-03-17 |
| 4235858 | Processes for producing nitric acid by utilization of cold oxygen | Philip G. Blakey, Bryan Smith | 1980-11-25 |
| 4188793 | Condensation of vapor of organic liquids | William J. Grant, David John Graham | 1980-02-19 |
| 4183906 | Oxygen-enrichment columnar absorption process for making nitric acid | Philip G. Blakey | 1980-01-15 |