Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867740 | Multiple-membrane flow control valve and implantable shunt system | — | 1989-09-19 |
| 4861331 | Implantable shunt system and method of assembly | Stephen W. Laguette, Alfons Heindl, Leanne M. Lintula | 1989-08-29 |
| 4816016 | Subcutaneous infusion reservoir and pump system | Rudolf R. Schulte, Alfons Heindl | 1989-03-28 |
| 4795437 | Siphon control device | Rudolf R. Schulte, Stephen W. Laguette | 1989-01-03 |