Patents by Inventor Carmen Elligsen

Carmen Elligsen 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).

  • Method of electroplating glare-free nickel deposits
    Patent number: 5897763
    Abstract: A method of electrodepositing nickel and nickel alloys on a metal surface of a substrate wherein a Watts or other nickel deposition electrolyte is used as the bath in the presence of a conventional base brightener. According to the invention, an ethylene-oxide adduct or propylene-oxide adduct or ethyleneoxide/propylene-oxide adduct is added in an amount less than 5 mg/l and the deposition is carried out at 40 to 75.degree. C. and the concentration of the adduct and the temperature are so selected that during operation and with visual inspection there is no cloudiness nor any diffuse scattering of light incident upon the bath.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: April 27, 1999
    Assignee: LPW-Chemie GmbH
    Inventors: Carmen Elligsen, Gerd Schongen, Detlef Kowczyk