Patents Examined by Margaret Eismann
  • Patent number: 5445755
    Abstract: Dye transfer inhibiting systems are disclosed, comprising an enzyme exhibiting peroxidase activity, a hydrogen peroxide source, an additional oxidizable substrate, and an accelerator preferably having the formula ##STR1## Detergent compositions free of linear alkylbenzenesulfonate containing the dye transfer inhibition system and typical detergent ingredients are also disclosed. More effective and efficient dye transfer inhibition of fugitive dyes is achieved by using the dye transfer inhibition system as a detergent additive or in a detergent composition matrix free of linear alkylbenzenesulfonate.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: August 29, 1995
    Assignee: The Procter & Gamble Company
    Inventors: Andre C. Convents, Alfred Busch, Isabelle M. C. De Groote, Don K. K. Liu
  • Patent number: 5183500
    Abstract: An electroless plating bath composition is produced by mixing stannous oxide, at least one member selected from the group consisting of lead oxide and lead perchlorate, perchloric acid, and thiourea. The composition thus obtained is ideal for electroless plating of a substrate of copper, particularly a substrate provided with a resist film.
    Type: Grant
    Filed: September 4, 1991
    Date of Patent: February 2, 1993
    Assignee: Kosaku & Co., Ltd.
    Inventors: Kazuhiro Fukuoka, Keiki Kiyohara, Tadayuki Konishi, Isao Miyatake, Masaji Hamamoto