Toothbrush including a device for indicating brushing force
US9578957B2 · kind B2 · utility
6Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2011 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Dec 9, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A toothbrush that includes a piezochromic polymer or a proximity dye based polymer effective to emit an optical signal indicative of brushing force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.