Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784644 | Valve, catheter and method for preventing the introduction of air into the body of a patient | Philip N. Sawyer, Lester F. Miller | 1988-11-15 |
| 4722725 | Methods for preventing the introduction of air or fluid into the body of a patient | Philip N. Sawyer | 1988-02-02 |
| 4684364 | Safety arrangement for preventing air embolism during intravenous procedures | Philip N. Sawyer | 1987-08-04 |
| 4568333 | Valve arrangement especially suitable for preventing introduction of air into vascular systems | Philip N. Sawyer | 1986-02-04 |