Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4519396 | Fetal heart rate monitor apparatus and method for combining electrically and mechanically derived cardiographic signals | Paul Lawrence Epstein, John S. Ballas, Jr., Joseph M. Van Horn | 1985-05-28 |
| 4489726 | Apparatus and method for qualitatively selecting between signals representative of a physiological characteristic | Paul Lawrence Epstein, John S. Ballas, Jr., Joseph M. Van Horn | 1984-12-25 |
| 4299234 | Fetal heart rate monitor apparatus and method for combining electrically and mechanically derived cardiographic signals | Paul Lawrence Epstein, John S. Ballas, Jr., Joseph M. Van Horn | 1981-11-10 |