Patents by Inventor Russell M. Bimber

Russell M. Bimber 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).

  • Preparation of ketones
    Patent number: 4570021
    Abstract: Disclosed is a method for the preparation of ketones by a catalytic vapor phase reaction of using reactants such as ketones with carboxylic acids and/or carboxylic acid precursors. An example of such a reaction is that of acetone with pivalic acid over a ceria-alumina catalyst at a temperature of nearly 470.degree. C. to produce pinacolone.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: February 11, 1986
    Assignee: SDS Biotech Corporation
    Inventors: Richard L. Cryberg, Russell M. Bimber
  • Preparation of ketones
    Patent number: 4528400
    Abstract: Disclosed is a method for the preparation of ketones by a catalytic vapor phase reaction of using reactants such as ketones with carboxylic acids and/or carboxylic acid precursors. An example of such a reaction is that of acetone with pivalic acid over a ceria-alumina catalyst at a temperature of nearly 470.degree. C. to produce pinacolone.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: July 9, 1985
    Assignee: SDS Biotech Corporation
    Inventors: Richard L. Cryberg, Russell M. Bimber
  • Synthesis of pyridazinone pharmaceutical intermediates using diketene reactant
    Patent number: 4286091
    Abstract: Valuable pyridazinone intermediates to pharmaceutically useful compounds can be prepared in surprisingly high yields by the reaction of the corresponding monohydrazone with diketene, preferably in the presence of a basic catalyst. In an especially preferred embodiment, p,p'-dichlorobenzil monohydrazone and diketene are reacted in a xylene solvent in the presence of triethylamine to afford 4-acetyl-5,6-bis(p-chlorophenyl)-2H-pyridazin-3-one, which can then be reacted with ethylene carbonate in the presence of potassium carbonate to afford the antihypertensive agent, 4-acetyl-5,6-bis(p-chlorophenyl)-2-(2'-hydroxyethyl)-2H-pyridazine-3-one.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: August 25, 1981
    Assignee: Diamond Shamrock Corporation
    Inventors: Russell M. Bimber, Russell Buchman, Michael F. DePompei, Larry J. Powers