Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866020 | Lithiated clays and uses thereof | Martin Atkins, James A. Ballantine, John H. Purnell | 1989-09-12 |
| 4838052 | Lock system | Chin-Jung Huang, Wen-Chyi Shyu | 1989-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866020 | Lithiated clays and uses thereof | Martin Atkins, James A. Ballantine, John H. Purnell | 1989-09-12 |
| 4838052 | Lock system | Chin-Jung Huang, Wen-Chyi Shyu | 1989-06-13 |