Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6301793 | Equatorial sundial apparatus utilizing one or more concave cylindrical focusing mirrors | William Gottesman, Jerrold C. Manock | 2001-10-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6301793 | Equatorial sundial apparatus utilizing one or more concave cylindrical focusing mirrors | William Gottesman, Jerrold C. Manock | 2001-10-16 |