Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D638273 | Hobby knife with retractable blade | Michael Schumacher, Lisa R. Singer | 2011-05-24 |
| D638474 | Pencil sharpener | Hongjie Yang | 2011-05-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D638273 | Hobby knife with retractable blade | Michael Schumacher, Lisa R. Singer | 2011-05-24 |
| D638474 | Pencil sharpener | Hongjie Yang | 2011-05-24 |