Patents by Inventor Ridiger Lang

Ridiger Lang 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).

  • Animal litter and process for the production thereof
    Patent number: 4736706
    Abstract: Animal litter made from or in conjunction with a porous, odor-preventing material with a clearly defined pH-value, characterized in that the pH-value of the porous inorganic material in aqueous suspension is betwen approximately 7 and 9, preferably 7.5 and 8.5, that the porous inorganic material has a zinc content of 0.1 to 2.0% by weight and that the water-soluble zinc proportion of the porous inorganic material is 0.01 to 100 ppm, as well as a process for the production thereof.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: April 12, 1988
    Assignee: Mars, Inc.
    Inventor: Ridiger Lang