Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5015683 | Bis(1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-amine derivatives and stabilized compositions | Ramanathan Ravichandran | 1991-05-14 |
| 5015682 | Oligomeric N-hydrocarbyloxy hindered amine light stabilizers | — | 1991-05-14 |
| 5015678 | Stabilizers derived from N-hydroxy hindered amines by Michael addition reactions | Raymond Seltzer, Ramanathan Ravichandran | 1991-05-14 |
| 4921962 | Process for preparing N-hydrocarbyloxy derivatives of sterically hindered amines | Michael Ackerman | 1990-05-01 |
| 4831134 | N-hydroxy hindered amine stabilizers | Ronald A. E. Winter | 1989-05-16 |