Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871547 | Polyaddition silicone elastomer dosage forms for the controlled release of iodine values | Guy Cyprien, Alain Fisch, Johnny Haggiage, Thierry Prazuck, Ghislaine Torres | 1989-10-03 |
| 4866149 | Process for catalytic treatment of a polysilazane containing on average at least two hydrocarbon groups having aliphatic unsaturation per molecule | Jean-Jacque Lebrun | 1989-09-12 |
| 4861844 | Cationic catalysis process for the treatment of a polysilazane containing on average at least two .tbd.SiH groups per molecule | Jean-Jacques Lebrun | 1989-08-29 |