Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5256336 | Stable aqueous dispersions of fluorescent brightening agents of the coumarine type and method of preparing same | Thomas B. Beamish | 1993-10-26 |
| 5122304 | Stable aqueous dispersions of fluorescent brightening agents of the coumarine type and method of preparing same | Thomas B. Beamish | 1992-06-16 |