Toothbrush having soft and hard bristles together
US7134162B2 · kind B2 · utility
21Cited by
12References
2Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 22, 2003 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Jan 7, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S15/05
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a toothbrush having soft and hard bristles together. The toothbrush having soft and hard bristles with 6–10 mm in tapered length and 0.01–0.08 mm in diameter of end portions comprises: longer bristles(1) located at both edges; and shorter bristles(2) located at the central portion, wherein the bristles are generally in a semicircular form at their top portions when seen from a side, and a difference in length between the longer bristles(1) and the shorter bristles(2) is about 2–4 mm. The toothbrush can increase brushing efficiency and effectively remove foreign matters between teeth and inside periodontal pockets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.