Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11284702 | Side brush with bristles at different lengths and/or angles for use in a robot cleaner and side brush deflectors | Frederick Karl Hopke, Alden Kelsey, David T. BARKER, Daniel R. DER MARDEROSIAN, Sandy Chai-Jen Wang | 2022-03-29 |
| 10813631 | Non-metallic retractor device with a ratchet arm | Michael Bohl, Zachary Hanze, Kevin Baumann, Megan Pottinger | 2020-10-27 |
| 10772616 | Non-metallic retractor device with swivel retractor arms | Michael Bohl, Zachary Hanze, Kevin Baumann, Megan Pottinger | 2020-09-15 |