Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4307729 | Optical digitizer for measuring spirometer output | Russell F. Hart, Gerald A. Brumm | 1981-12-29 | $3,069,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4307729 | Optical digitizer for measuring spirometer output | Russell F. Hart, Gerald A. Brumm | 1981-12-29 | $3,069,000 |