Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4583254 | Low tension waterbed mattress with aesthetic appearance | Charles P. Hall | 1986-04-22 |
| 4577356 | Waterbed mattress with baffle chambers | Charles P. Hall | 1986-03-25 |
| 4538311 | Self-sealing puncturable article | Charles P. Hall, Joseph Philipson | 1985-09-03 |
| 4392872 | Air bleeder valve for waterbed mattresses | Charles P. Hall | 1983-07-12 |
| 4386638 | Coupling for waterbed mattress valves | Charles P. Hall | 1983-06-07 |