Patents by Inventor Barry P. Lederman

Barry P. Lederman 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).

  • High efficacy aerosol antiperspirant composition
    Patent number: 5368842
    Abstract: The present invention embraces an aerosol antiperspirant composition which comprises a suspension of about 5 to 15% high efficacy aluminum salt in powder form in about 15 to 35% volatile silicone and about 40 to 80% liquefied hydrocarbon propellant with about 0.7 to 1.5% hydrophobic colloidal silica suspending agent and about 0.15 to 0.35% hydrophilic colloidal silica suspending agent. The composition of the present invention has superior antiperspirant efficacy and avoids the use of materials which have an adverse effect on efficacy, namely oil soluble emollient esters such as isopropyl myristate and polar agents such as ethanol.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: November 29, 1994
    Assignee: The Gillette Company
    Inventors: Barry P. Lederman, David T. Callaghan