Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6321405 | Push brush cleaner | Richard E. Whittaker, Thomas R. Whittaker | 2001-11-27 |
| 6311354 | Push brush cleaner | Richard E. Whittaker, Thomas R. Whittaker | 2001-11-06 |
| 5427283 | Dispenser for powder or granular material | Richard E. Whittaker, Robert Teal Back | 1995-06-27 |