Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8940108 | Conduit cleaning apparatus | — | 2015-01-27 |
| 6775872 | Surface-traversing vehicle | Ernest Appleton | 2004-08-17 |
| 6769321 | Conduit traversing vehicle | Ernest Appleton | 2004-08-03 |
| 6431079 | Surface traversing vehicle | Ernest Appleton | 2002-08-13 |
| 6164397 | Vehicle for traversing external curved surfaces | Ernest Appleton | 2000-12-26 |