Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5879413 | Cationic diazo dyes for the dyeing of hair | Francis C. P. McLoughlin, Roger G. J. C. Twigg | 1999-03-09 |
| 4192862 | Hairspray containing a hairspray resin and a drag reducing agent | — | 1980-03-11 |