Patents by Inventor Dolores T. Rodriguez

Dolores T. Rodriguez 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).

  • Patent number: 6576601
    Abstract: A method that produces a powdered fabric cleaner is disclosed. The cleaner has a reduced level of fines. One introduces at least one particulate material and at least one liquid material into a mixing vessel to form a mixture, blends the mixture for a first period of time, chops the mixture for at least a portion of the first period of time, and thereafter blends the mixture without chopping for a second period of time. In one form the cleaning composition has at least 80% by weight of inorganic salt carrier particulates, 1-10% by weight of flow agent particulates, and 0.1-15% by weight of a liquid active material, such as a fragrance, a surfactant, a solvent, or a pesticide. At least 90.0% of the composition particulates have a particle size greater than 0.105 millimeters.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: June 10, 2003
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Thomas Mikic, Heather R. Schramm, Hans J. Weitkuhn, Dolores T. Rodriguez