Patents by Inventor Luis dela Cruz

Luis dela Cruz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dispensing device
    Patent number: 4110853
    Abstract: This invention provides a dispensing device for toilet bowl tanks. It dispenses in liquid form a normally solid purifying and disinfecting material. It may be hung directly in the toilet tank. It comprises a container having a bottom part for water entry into a chamber to dissolve the purifying and disinfecting material therein. It features a check valve arrangement for facilitating the water entry.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: September 5, 1978
    Inventor: Luis dela Cruz