Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6899485 | Advanced cleaning system | Michael J. Hall, David J. Sayler | 2005-05-31 |
| 6893180 | Method of cleaning a surface | Michael J. Hall, James E. Rader, Boli Zhou, Karen S. Hefter, David J. Sayler +6 more | 2005-05-17 |
| D503836 | Cleaning head | Michael J. Hall, Robert W. Flagler, David J. Sayler | 2005-04-05 |