Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5747403 | Organophilic, quaternary phosphonium ion-exchanged smectite clays | Stephen A. Boyd | 1998-05-05 |
| 5635075 | Method of removing organic contaminants from air and water with organophilic, quaternary phosphonium ion-exchanged smectite clays | Stephen A. Boyd | 1997-06-03 |
| 5587084 | Method of removing organic contaminants from air and water with organophilic, quaternary phosphonium ion-exchanged smectite clays | Stephen A. Boyd | 1996-12-24 |