Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1008582 | Pole connection for a window cleaning tool | William Harrington, Kai Hirsch | 2023-12-19 |
| D1007793 | Pole connection for a window cleaning tool | William Harrington, Kai Hirsch | 2023-12-12 |
| D981222 | Clamp for an extendable pole | William Harrington, Kai Hirsch | 2023-03-21 |
| D976506 | Pole connection for a window cleaning tool | William Harrington, Kai Hirsch | 2023-01-24 |