Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D937527 | Wheeled cart handle | Robert P. Irwin, Robert David Serra, Jacob A. Siegel, David Wai-Man Wong, Charles H. Wood | 2021-11-30 |
| 10953906 | Item-identifying carts | Nicholas McMahon, Robert P. Irwin, Jonathan Cohn, Jacob A. Siegel, Charles H. Wood +1 more | 2021-03-23 |