Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9637930 | Removable reversible handrail assistance device | Michael Joseph Grudzien | 2017-05-02 |
| 8925155 | Removable handrail assistance device | Michael Joseph Grudzien | 2015-01-06 |