Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5507809 | Multi-valved voice prosthesis | — | 1996-04-16 |
| 5300119 | Delivery system | — | 1994-04-05 |
| 5064433 | Voice prosthesis insertion assemblies | Frederick L. Coe | 1991-11-12 |
| 4993920 | Air mattress pumping and venting system | Barry A. Harkleroad | 1991-02-19 |
| 4911716 | Surgical implant for a voice prosthesis | Mark I. Singer | 1990-03-27 |
| 4773412 | Speaking tracheostomy tube | — | 1988-09-27 |
| 4614516 | Voice prosthesis device | Mark I. Singer | 1986-09-30 |
| 4586931 | Auto actuatable switch, speech simulator and method for tracheotomized individuals | Mark I. Singer, Barry A. Harkleroad | 1986-05-06 |
| 4435853 | Voice prosthesis device and placement tool therefor | Mark I. Singer | 1984-03-13 |