US Patent 10549000 Handheld UV disinfectant unit

An ultraviolet (UV) light disinfectant unit is sized for portability and handheld use. The handheld UV light disinfectant unit includes a shell defining an interior cavity. A UV light is provided on an exterior of the shell. A transparent lens cap is provided over the UV light and is removably mounted to the shell. At least one writing instrument such as a pen and/or stylus is integrated into the handheld UV light disinfectant unit. The writing instrument is extendable away from the shell and retractable into the interior cavity. A slider button may be provided to slide the writing instrument between the retracted position and the extended position. A combination of a UV light and a writing instrument in a handheld device provides a user with a multiuse tool to accomplish tasks such as writing on publicly accessible screens that may make multiple steps of disinfecting desirable.