Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8258434 | Heating apparatus for heat retaining hair clips | David Richmond, Howard Richmond, Henry K. Yu, Matthew W. Tivnon | 2012-09-04 |
| 7989735 | Heating apparatus for heat retaining hair clips | David Richmond, Howard Richmond, Henry K. Yu, Matthew W. Tivnon | 2011-08-02 |