Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6151748 | Carpeting and surface cleaning apparatus | Robert E. Earhart, Jr., Grant K. Halls | 2000-11-28 |
| D414099 | Tool handle | Daniel J. Cisneros | 1999-09-21 |
| D403228 | Tool handle | Daniel J. Cisneros | 1998-12-29 |
| D393791 | Tool handle | Daniel J. Cisneros | 1998-04-28 |
| 5568916 | Quick set and release clamping device | Robert R. Gibbons | 1996-10-29 |
| 4894102 | Method for refinishing building panels | Donald W. Harrison | 1990-01-16 |
| 4740257 | Ceiling tile covering system | Donald W. Harrison | 1988-04-26 |
| 4666540 | Method of refurbishing building panels | — | 1987-05-19 |
| D255951 | Solids separation scoop for use in cleaning pet litter | Robert R. Gibbons, D. Harrison Miller | 1980-07-15 |
| 4191589 | Method and apparatus for cleaning carpets and surfaces using cleaning fluid | Robert R. Gibbons | 1980-03-04 |