Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6031030 | Production process | Paul Kerwin, Arthur Stark Walls, Kenneth Grant Dykes | 2000-02-29 |
| 5964929 | Process for the production of ink concentrates | Paul Kerwin, Arthur Stark Walls, Kenneth Grant Dykes | 1999-10-12 |
| 5776238 | Production of pigments | Paul Kerwin, Arthur Stark Walls | 1998-07-07 |
| 5614013 | Pigment compositions | Gordon Mitchell, Iain Frank Fraser | 1997-03-25 |
| 5449774 | Production of beta form pigmentary copper phthalocyanine | Ian A. Lambie, Michael McFarlane | 1995-09-12 |
| 5279654 | Phthalocyanine pigment compositions | David Keirs, Ian A. Lambie | 1994-01-18 |
| 5250111 | Pigment compositions | Michael D. McFarland | 1993-10-05 |
| 5212221 | Stabilized phthalocyanine pigment compositions | Michael McFarlane | 1993-05-18 |
| 4981888 | Resin compositions | Colin D. Campbell | 1991-01-01 |
| 4920217 | Production of dimethylaminomethyl copper phthalocyanine | Ian A. Lambie, Paul I. W. Yarrow, Colin D. Campbell | 1990-04-24 |
| 4801634 | Production of pigmentary copper phthalocyanine | John D. Stewart, Arthur Stark Walls | 1989-01-31 |
| 4801638 | Production of pigmentary copper phthalocyanine | John D. Stewart, Arthur Stark Walls | 1989-01-31 |
| 4694078 | Production of pigmentary copper phthalocyanine | John D. Stewart, Arthur Stark Walls | 1987-09-15 |
| 4512866 | Titanium-lead anode for use in electrolytic processes employing sulfuric acid | — | 1985-04-23 |
| 4426262 | Promotion of Pt-Ir catalytic electrodes with lead, tantalum, ruthenium and oxygen | Herbert Myers | 1984-01-17 |
| 4364814 | Apparatus for the production of aqueous alkali metal hypochlorite | — | 1982-12-21 |
| 4313766 | Process for the production of a pigment composition | Ronald Barraclough | 1982-02-02 |
| 4293513 | Method of making honeycomb structures | Herbert Myers, Muriel Abrash | 1981-10-06 |
| 4252565 | Stabilized phthalocyanines | Alexander M. Irvine, Christopher J. Bridge | 1981-02-24 |
| 4186066 | Electrolysis cathodes with Ag-Ti intermetallic coating | — | 1980-01-29 |