Patents by Inventor Mark J. Dales

Mark J. Dales 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).

  • Crosslinked gel ion exchange resin beads characterized by strain birefringence patterns
    Patent number: 4192921
    Abstract: Hard, infusible, discrete beads of crosslinked copolymer are prepared by free-radical catalyzed polymerization of a monomer mixture in aqueous dispersion wherein oxygen is incorporated in the monomer mixture. Ion exchange resins having improved mechanical strength are obtained by attaching functional groups to the copolymer.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: March 11, 1980
    Assignee: Rohm and Haas Company
    Inventor: Mark J. Dales