Patents by Inventor Robert W. Trimmer

Robert W. Trimmer 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).

  • Nitro or nitroso substituted polyhalogenated phenolsulfonephthaleins as protein indicators in biological samples
    Patent number: 5187104
    Abstract: The present invention provides a novel group of protein error indicators including nitro or nitroso substituent groups in the B and C rings of a partially halogenated triphenylmethane compound.
    Type: Grant
    Filed: June 6, 1991
    Date of Patent: February 16, 1993
    Assignee: Miles Inc.
    Inventors: Paul F. Corey, Angela A. Michaels, Lois J. Proud, Michael Salvati, Robert W. Trimmer, Ronald G. Sommer
  • Device and method for preparation of a control solution for ketone determination.
    Patent number: 4529704
    Abstract: A device for preparing a control solution for ketone analysis is disclosed, as well as a method for preparing it. The device comprises a carrier vehicle incorporated with an ester of a .beta.-ketoalkanoic acid, and a hydrolyzing substance capable of converting the ester to the corresponding .beta.-ketoalkanoic acid. The ester has the structure ##STR1## in which R is a lower alkyl group and R' is an aliphatic or cyclic group having 1 to about 7 carbon atoms. The method comprises contacting a predetermined volume of solvent with the device.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: July 16, 1985
    Assignee: Miles Laboratories, Inc.
    Inventors: Robert W. Trimmer, William I. White
  • Test for esterase activity in a liquid sample
    Patent number: 4499185
    Abstract: A composition, test device and method for determining the presence of leukocytes, esterase and/or esterase activity in a test sample is disclosed. The composition comprises an ester which, when cleaved by esterolytic activity, produces a detectable response such as color formation. In addition the composition comprises the compound 3-quinuclidinol. The device is prepared by incorporating a carrier matrix, such as paper, with the composition. The method comprises contacting a test sample with the device and observing a detectable response.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: February 12, 1985
    Assignee: Miles Laboratories, Inc.
    Inventors: A. Christopher Skjold, Lonnie R. Stover, Robert W. Trimmer