Patents by Inventor Merle E. Jacobs

Merle E. Jacobs 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).

  • Composition and process for producing pigmentation in hair or skin
    Patent number: 4453941
    Abstract: A composition and process for producing pigmentation in hair and skin is disclosed which employs non-mutagenic compounds to duplicate naturally occurring biosynthetic colors. The composition for imparting golden coloration comprises as active ingredients a solution of a tyrosine derivative having a side chain with a substituted amine group in admixture with certain compounds having a reactive nitrogen moiety, and is topically applied in the presence of an oxidant. The composition for imparting a dark coloration comprises as active ingredients a solution of tyrosine derivative having a side chain free for indole formation in admixture with certain compounds having a reactive nitrogen moiety, and is topically applied in the presence of an oxidant. Mixtures of the two compositions may be applied to impart proportionate intermediate colors.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: June 12, 1984
    Assignee: Board of Overseers of Goshen College
    Inventor: Merle E. Jacobs
  • Composition and process for producing pigmentation in hair or skin
    Patent number: 4390341
    Abstract: A composition and process for producing pigmentation in hair and skin is disclosed which employs non-mutagenic compounds to duplicate naturally occurring biosynthetic colors. The composition for imparting golden coloration comprises as active ingredients a solution of a tyrosine derivative having a side chain with a substituted amine group in admixture with certain compounds having a reactive nitrogen moiety, and is topically applied in the presence of an oxidant. The composition for imparting a dark coloration comprises as active ingredients s solution of tyrosine derivative having a side chain free for indole formation in admixture with certain compounds having a reactive nitrogen moiety, and is topically applied in the presence of an oxidant. Mixtures of the two compositions may be applied to impart proportionate intermediate colors.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: June 28, 1983
    Assignee: Board of Overseers of Goshen College
    Inventor: Merle E. Jacobs