Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11040226 | Serviceable cartridge assembly for respirator exhalation unit | David Wheatley, Patrick Hulbert | 2021-06-22 |
| 10279204 | Serviceable cartridge assembly for respirator exhalation unit | David Wheatley, Patrick Hulbert | 2019-05-07 |
| D338324 | Decorative attachment for an athletic shoe | Timothy John Canatella | 1993-08-17 |
| 4928346 | Hand-held vacuum cleaner with power brush | Donald E. Elson, Burton E. Gerke, Jr., Michael E. Bitzel, Bruce A. Wilder, William R. Lessig, III +2 more | 1990-05-29 |
| 4841594 | Cordless vacuum cleaner with power brush | Donald E. Elson, Burton E. Gerke, Jr., Michael E. Bitzel, Bruce A. Wilder, William R. Lessig, III +2 more | 1989-06-27 |
| 4414781 | Turbine sander | Colin Overy, Anthony J. Langenberg, Arthur G. Powell | 1983-11-15 |
| 4399638 | Switching system for an air-driven tool | R. Kent Nicholson | 1983-08-23 |
| 4300262 | Air-powered vacuum cleaner floor tool | Donald B. Morgan | 1981-11-17 |