Patents by Inventor Peter W. Lucker

Peter W. Lucker 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).

  • Vaginal contraceptive
    Patent number: 4277461
    Abstract: The contraceptive consists of a spermicidal active substance of the formula RCONH--(CH.sub.2 CH.sub.2 O).sub.n --H, in which R denotes a C.sub.5 -C.sub.19 -alkyl or -alkenyl radical and n has a value of 3 to 20, a mixture of an alkali metal bicarbonate and a water-soluble, solid, anhydrous mono- or poly-carboxylic acid having 2 to 6 carbon atoms, in a stoichiometric ratio, as a foam generator, and a polyethylene glycol, or mixture of polyethylene glycols, which melts at body temperature.
    Type: Grant
    Filed: December 20, 1979
    Date of Patent: July 7, 1981
    Inventors: Peter W. Lucker, Nikolaus Wetzelsberger