Patents by Inventor Mark Witman

Mark Witman 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).

  • Publication number: 20070256255
    Abstract: A process for making a colored article of manufacture is disclosed. Accordingly an article of manufacture is first prepared of a material selected from the group consisting of metal, wood, glass, ceramic, masonry and polymeric materials. A polymeric coating (superstrate) is then applied to at least a portion of the surface of the article. At least a portion of the superstrate is brought into contact with a material system that contains (i) water, (ii) a carrier, (iii) a dye and (iv) a diol, under conditions calculated to bring about diffusion of said dye into said superstrate.
    Type: Application
    Filed: May 4, 2006
    Publication date: November 8, 2007
    Inventors: Mark Witman, Robert Pyles, Rick Archey, Joseph Ventura
  • Patent number: 4649168
    Abstract: The present invention relates to a process for the preparation of flame-resistant polycarbonate moulding compositions, which is characterized in that, besides the addition of alkali metal salts, there is incorporation of tetrafluoroethylene polymers as an intimate mixture with halogen-free graft polymers, these intimate mixtures being prepared by coagulation of the appropriate emulsion mixtures, and to the polycarbonate moulding compositions obtainable by the process according to the invention.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: March 10, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jurgen Kress, Ludwig Bottenbruch, Mark Witman, Klaus Kircher, Christian Lindner, Karl-Heinz Ott
  • Patent number: 4599395
    Abstract: Thermotropic fully-aromatic polyesters which contain sulphonic acid and/or metal sulphonate groups bound to the aromatic rings of the polyester, have improved mechanical properties.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: July 8, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Rudolf Dicke, Manfred Schmidt, Mark Witman, Aziz El-Sayed