Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4996141 | Monomethine compounds | Geoffrey E. Ficken, Douglas J. Edwards, Clive W. Mowforth, Trevor J. Maternaghan, Rolf Steiger | 1991-02-26 |
| 4287348 | Preparation of sulphoalkyl quaternary salts | Rainer Kitzing, Geoffrey E. Ficken | 1981-09-01 |