Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5728853 | Chemical process | John Campbell, Raymond F. Dalton | 1998-03-17 |
| 5557003 | Alkylphenoxy substituted bis (thio phosphoryl) amines | John Campbell, Raymond F. Dalton | 1996-09-17 |
| 5502250 | Bis(dialkylthiophosphoryl)amines as metal extractants | John Campbell, Raymond F. Dalton | 1996-03-26 |
| 5433855 | Process for extracting metal values from aqueous solution | John Campbell, Raymond F. Dalton | 1995-07-18 |
| 5393431 | Process for extracting metals | John Campbell, Raymond F. Dalton | 1995-02-28 |
| 5342937 | Heterocyclic thione | Peter W. Austin, Peter A. Tasker, Derek Thorp | 1994-08-30 |
| 5308595 | Process for the extraction of gallium | Stephen William Leeming | 1994-05-03 |
| 5258524 | Bis-bibenzimidazole composition | Derek Thorp, Raymond F. Dalton | 1993-11-02 |
| 5254695 | Substituted triazoles | David Stewart, Anthony J. Nelson | 1993-10-19 |
| 5183940 | Poly-(n-[2-hydroxybenzyl])-1,2-diaminoethanes | Stephen William Leeming | 1993-02-02 |
| 5074911 | Heterocyclic thione | Peter W. Austin, Peter A. Tasker, Derek Thorp | 1991-12-24 |
| 4923686 | Process for the extraction of metal values | Raymond F. Dalton, Raymond R. Price, David Stewart | 1990-05-08 |
| 4879388 | Extraction of metal values | David Stewart, Anthony J. Nelson | 1989-11-07 |
| 4822880 | Process for the extraction of metal values and novel metal extractants | David P. Devonald, Anthony J. Nelson, David Stewart | 1989-04-18 |
| 4775763 | Metal extractants | Raymond F. Dalton, Raymond R. Price, David Stewart | 1988-10-04 |
| 4696801 | Process for the extraction of metal values with bisimidazole metal extractants | David P. Devonald, Anthony J. Nelson, David Stewart | 1987-09-29 |
| 4683310 | Pyridine dicarboxylic ester metal extractants | Raymond F. Dalton, Raymond R. Price, David Stewart | 1987-07-28 |
| 4675172 | Triazolopyrimidine extractants | Anthony J. Nelson | 1987-06-23 |
| 4581220 | Process for the extraction of metal values and novel metal extractants | Anthony J. Nelson, David Stewart | 1986-04-08 |
| 4525330 | Process for the extraction of metal values and novel metal extractants | Raymond F. Dalton, Raymond R. Price, David Stewart | 1985-06-25 |
| 4257944 | Process for the manufacture of cyano azo dyes | James S. Hunter, John Robert Lawson, John Moore | 1981-03-24 |
| 4222935 | Process for the manufacture of aromatic nitriles | Antony Greenall, Raymond R. Price | 1980-09-16 |