Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6880798 | Sensing and control of valve flow rate | David Leo Hart | 2005-04-19 |
| 4223476 | Blocking toy vehicle | Robert A. Jackman | 1980-09-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6880798 | Sensing and control of valve flow rate | David Leo Hart | 2005-04-19 |
| 4223476 | Blocking toy vehicle | Robert A. Jackman | 1980-09-23 |