Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7449892 | Stray voltage detecting | Daniel C. Wiswell, Jianping Sun | 2008-11-11 |
| 4990860 | Apparatus for measuring the number of turns of a toroidal coil | — | 1991-02-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7449892 | Stray voltage detecting | Daniel C. Wiswell, Jianping Sun | 2008-11-11 |
| 4990860 | Apparatus for measuring the number of turns of a toroidal coil | — | 1991-02-05 |