Toothbrush head with means to direct and collect radiation
US6862771B1 · kind B1 · utility
104Cited by
10References
13Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Aug 2, 1999 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Aug 2, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/425
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A toothbrush head suitable to direct incident radiation toward a surface of a tooth and to collect emitted radiation from the surface of the tooth, being made at least in past of a material which is transparent to the incident and/or emitted radiation. In preferred embodiments the head includes one or more radiation guiding cores of transparent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.