Patents by Inventor Robert W. Bearman

Robert W. Bearman 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).

  • Active Grignard electrode
    Patent number: 4002548
    Abstract: The method of continuously monitoring the concentration of Grignard reactant in the "Freeport Process" cell for producing organolead compounds which comprises utilizing a reference half cell consisting of an electrode in anhydrous ether solution with a platinum group sample electrode in a solution of process Grignard reactant and adjusting upwardly the concentration of Grignard when it falls below a value of 0.02M. Also included in the invention are preferred reference half cells utilizing lead and zinc in anhydrous solvent selected from glycol diethers, such as diethylether of tetraethylene glycol (DETEG) and optionally tetrahydrofuran (THF) as a stripping solvent.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: January 11, 1977
    Assignee: Nalco Chemical Company
    Inventors: Charles L. Baimbridge, James R. Minderhout, Robert W. Bearman, Donald E. Carpenter