Patents by Inventor W. Thomas Ruckle

W. Thomas Ruckle 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).

  • Toilet bowl cleaner
    Patent number: 4522738
    Abstract: Toilet bowl cleaners having inner and outer water-soluble envelopes are disclosed. The inner envelope contains a basic material and the outer envelope contains both the inner envelope and an acidic material. In use, the outer envelope dissolves and thereby releases the acidic material to clean the toilet bowl. The inner envelope then dissolves thereby releasing the basic material contained therein to neutralize the toilet bowl water.
    Type: Grant
    Filed: April 26, 1983
    Date of Patent: June 11, 1985
    Inventors: David J. Magid, W. Thomas Ruckle