Patents by Inventor Robert D. Lundbeeg

Robert D. Lundbeeg 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).

  • Novel polyampholyte compositions possessing high degrees of acid, base, or salt tolerance in solution
    Patent number: 4837288
    Abstract: Intramolecular polymer complexes synthesized from acrylamide, sodium styrene sulfonate, and methacrylamidopropyltrimethylammonium chloride, having viscosity-polymer concentration relationships that are invarient with the addition of high levels of acid, base, or salt to the fresh water system. These complexes possess a "balance" between conventional polyelectrolyte and polyampholyte behavior.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: June 6, 1989
    Assignee: Exxon Research & Engineering Company
    Inventors: Dennis G. Peiffer, Robert D. Lundbeeg