Patents by Inventor Debra S. Marzec

Debra S. Marzec 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: 4772414
    Abstract: Described is an aqueous bleaching composition comprising (a) hypochlorite-yielding bleaching agent, e.g., sodium hypochlorite, (b) alkaline reagent, e.g., sodium hydroxide, and (c) alkyl poly (ethyleneoxy) sulfonate corresponding to the general formula, RO(C.sub.2 H.sub.4 O).sub.n-1 CH.sub.2 CH.sub.2 SO.sub.3 M, wherein R is an alkyl group having from 6 to 30 carbon atoms, n is a number from about 3 to about 20, and M is alkali metal. Optionally, additional miscellaneous materials such as abrasives, builder compounds, etc. may be present to provide a disinfecting cleansing composition.
    Type: Grant
    Filed: July 24, 1986
    Date of Patent: September 20, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Debra S. Marzec, Robert C. McQueen
  • Patent number: 4530742
    Abstract: Disclosed are electrodes, e.g., cathodes useful for the preparation of alkali metal halates. The electrodes comprise a substrate selected from the group consisting of titanium, steel, copper, nickel and silver and, in one embodiment, a coating of a Group VIII metal oxide selected from the group consisting of ruthenium, cobalt, rhodium, iridium, nickel, palladium and platinum. In a further embodiment, the coating also contains at least one Group IV metal oxide, e.g., titanium and tin.
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: July 23, 1985
    Assignee: PPG Industries, Inc.
    Inventors: William W. Carlin, Debra S. Marzec