Patented mechanical rotary toothbrush technology with a unique perpendicular gear mechanism

I am the owner of Vietnamese Invention Patent No. 37521 covering a novel mechanical toothbrush technology. Unlike conventional manual toothbrushes, this invention utilizes a unique perpendicular gear mechanism that enables the brush head to rotate directly on the tooth surface while the user simply brushes horizontally, which is the most common brushing habit worldwide. The rotation is generated entirely through a mechanical transmission system, requiring no electricity, batteries, or motors. This technology is designed to improve cleaning performance while preserving the simplicity, convenience, and affordability of a manual toothbrush. The value of this invention extends beyond a single toothbrush design. Its core strength lies in the patented mechanical principle that converts horizontal brushing motion into rotational cleaning motion, creating a technology platform that may be adapted for a variety of future oral care products. A functional prototype has been developed, and the invention has been granted a Vietnamese patent. I am currently seeking partners interested in patent licensing, technology transfer, joint product development, patent acquisition, or other mutually beneficial commercialization opportunities. I would be pleased to provide additional technical information and discuss potential collaboration with interested organizations.