Patents by Inventor Silvia Napierski

Silvia Napierski 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).

  • Patent number: 4082564
    Abstract: Crosslinked macroreticular and gel-type quaternary ammonium acrylamide anion exchange resins which possess a potential for hydrophobic bonding and thereby display a high affinity for slightly ionized or unionized refractory color bodies as well as for the more easily removed color bodies in aqueous sugar solutions are provided.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: April 4, 1978
    Assignee: Rohm and Haas Company
    Inventors: William Fries, Silvia Napierski
  • Patent number: 4082701
    Abstract: Crosslinked macroreticular and gel-type quaternary ammonium acrylamide anion exchange resins which possess a potential for hydrophobic bonding and thereby display a high affinity for slightly ionized or unionized refractory color bodies as well as for the more easily removed color bodies in aqueous sugar solutions are provided.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: April 4, 1978
    Assignee: Rohm and Haas Company
    Inventors: William Fries, Silvia Napierski