Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697593 | Method and apparatus for measuring blood oxygen levels | John M. Evans | 1987-10-06 |
| 4600015 | Patient monitoring apparatus and method | John M. Evans | 1986-07-15 |
| 4502490 | Patient monitoring equipment, probe for use therewith, and method of measuring anesthesia based on oesophagal contractions | John M. Evans | 1985-03-05 |