Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9878351 | Method of cleaning steps of an escalator | Michael Knight | 2018-01-30 |
| 8337625 | Escalator step cleaner | Michael Knight | 2012-12-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9878351 | Method of cleaning steps of an escalator | Michael Knight | 2018-01-30 |
| 8337625 | Escalator step cleaner | Michael Knight | 2012-12-25 |