Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8004527 | Self-centering zoom bar graph | William Culpi, John M. Rickman | 2011-08-23 |
| 7979938 | Changing amplitude of movement by changing the drive frequency of a toothbrush brushhead | Ronald C. Lilley, Scott E. Hall, John W. Pace, Joseph W. Grez | 2011-07-19 |