Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4672673 | Artificial larynx | Philip Katz, Henry S. Brenman, Harold Schwartz | 1987-06-09 |
| 4550427 | Artificial larynx | Philip Katz, Henry S. Brenman, Harold Schwartz | 1985-10-29 |
| 4539698 | Replaceable saliva barrier for intra-oral larynx | Philip Katz, Henry S. Brenman, Harold Schwartz | 1985-09-03 |
| 4539699 | Replaceable battery pack for intra-oral larynx | Philip Katz, Henry S. Brenman, Harold Schwartz | 1985-09-03 |
| 4502150 | Artificial larynx | Philip Katz, Henry S. Brenman, Harold Schwartz | 1985-02-26 |
| 4473905 | Artificial larynx | Philip Katz, Henry S. Brenman, Harold Schwartz | 1984-09-25 |