Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5129414 | Expansible chamber device having variably restrained valve systems | Thomas R. Glass | 1992-07-14 |
| 5111843 | Expansible chamber device having variably restrained valve systems | Thomas R. Glass | 1992-05-12 |
| 4981068 | Expansible chamber device having variably restrained valve systems | Thomas R. Glass | 1991-01-01 |