Colgate Palmolive Company

Xiang Ji Ding

Wen Jin Xi

Yu Liu

Kenneth Gerald Waguespack

Al Aquanza Sprosta

Yan Mei Ji

Douglas J Hohlbein

Guang Sheng Guo

Bo Zhang

David K Lee

Chi Shing Wong

Ji Yan Mei

Ran Zhang

An toothbrush having a handle and a head. The handle may include a first component and a second component covering at least a portion of the first component. The first and second components may be chemically compatible. The first and second components may both comprise a hard polyolefin. The first and second components may have different transparencies. In one aspect, the first component may be opaque and the second component may be transparent or semi-transparent. In some aspects, the handle may also include a third component comprising a thermoplastic elastomer. Furthermore, there may be at least one projection extending outwardly from an outer surface of the first component.

Toothbrush with visual and/or other sensory effects

Oral care implement

A toothbrush () having a combination of tapered and non-tapered cleaning elements () for enhanced cleaning effects and having a plurality of tapered bristle tufts of differing tuft configurations including, a first tapered bristle tuft () having a dome-shaped bristle tip profile () toward one end () of the head (), a second tapered bristle tuft () having an arcuate-shaped bristle configuration () toward an opposite end () of the head (), and a plurality of laterally-extending third tapered bristle tufts () arranged in an alternating fashion with non-tapered bristle tufts () and disposed between the first and second tapered bristle tufts ().

Toothbrush with enhanced cleaning effects

A method of manufacturing an oral care implement comprising: (a) providing a body comprising a handle portion and a head portion, the head portion having a hole extending there through from a first side to a second side; (b) providing a layer of first material on the handle portion and the head portion to form a subassembly comprising a handle section, comprising the handle portion and a first portion of the layer of first material, and a head section, comprising the head portion and a second portion of the layer of first material; and (c) then injection molding a second material onto the head section to form one or more oral care elements of the second material on the head section and a member of the second material in the hole, which member is unitary with the one or more oral care elements.

Oral care implement and method of manufacturing an oral care implement

Toothbrush

Portion of a toothbrush

Growing community of inventors

Yangzhou, China

Xiang Ji Ding