Patents by Inventor Michael Wider

Michael Wider 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).

  • Printing ink with heat stabilizing and leveling additive
    Patent number: 6071334
    Abstract: An aqueous ink jet ink composition used in an inkjet printhead is formulated with a colorant and a leveling agent that promotes the resolubilization of residual ink deposited on the printhead. The leveling agent is ethylene glycol phenyl ether. The ethylene glycol phenyl ether also functions as a heat stabilizer to reduce fluctuations in composition viscosity.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: June 6, 2000
    Inventors: Michael Wider, Satyanarayana Nistala, James Lancaster
  • Compositions for preventing stress cracks in poly(alkylene terephthalate) articles and methods of use therefor
    Patent number: 5009801
    Abstract: Stress cracking in poly(alkylene terephthalate) articles of manufacture is prevented by applying to the article a hydrophilic-substituted aromatic hydrocarbon having either an alkyl or aryl side chain, such as, sodium xylene sulfonate. Preferably, the stress crack inhibitor is applied to the article in the form of an aqueous fatty acid-based lubricant.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: April 23, 1991
    Assignee: Diversey Corporation
    Inventors: Michael Wider, Charles Rossio, Christian Remus