Patents by Inventor Robert R. Dorsch

Robert R. Dorsch 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: 7169588
    Abstract: A new polypropylene terephthalate composition is provided. The polypropylene terephthalate is comprised of 1,3-propanediol and terephthalate. The 1,3-propanediol is produced by the bioconversion of a fermentatble carbon source, preferable glucose. The resulting polypropylene terephthalate is distinguished from petrochemically produced polymer on the basis of dual carbon-isotopic fingerprinting which indicates both the source and the age of the carbon.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: January 30, 2007
    Assignees: E. I. du Pont de Nemours and Company, Genencor International, Inc.
    Inventors: Robert R. Burch, Robert R. Dorsch, Lisa Anne Laffend, Vasantha Nagarajan, Charles Nakamura
  • Publication number: 20030082756
    Abstract: A new polypropylene terephthalate composition is provided. The polypropylene terephthalate is comprised of 1,3-propanediol and terephthalate. The 1,3-propanediol is produced by the bioconversion of a fermentatble carbon source, preferable glucose. The resulting polypropylene terephthalate is distinguished from petrochemically produced polymer on the basis of dual carbon-isotopic fingerprinting which indicates both the source and the age of the carbon.
    Type: Application
    Filed: August 5, 2002
    Publication date: May 1, 2003
    Inventors: Robert R. Burch, Robert R. Dorsch, Lisa Anne Laffend, Vasantha Nagarajan, Charles Nakamura
  • Patent number: 6428767
    Abstract: A new polypropylene terephthalate composition is provided. The polypropylene terephthalate is comprised of 1,3-propanediol and terephthalate. The 1,3-propanediol is produced by the bioconversion of a fermentatble carbon source, preferable glucose. The resulting polypropylene terephthalate is distinguished from petrochemically produced polymer on the basis of dual carbon-isotopic fingerprinting which indicates both the source and the age of the carbon.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: August 6, 2002
    Assignees: E. I. du Pont de Nemours and Company, Genencor International, Inc.
    Inventors: Robert R. Burch, Robert R. Dorsch, Lisa Anne Laffend, Vasantha Nagarajan, Charles Nakamura
  • Publication number: 20010039373
    Abstract: A method is disclosed for the management of pharmaceutical dosage. The method involves transmitting medical data from a patient monitoring station via an electronic link to a centralized processing station where the data is analyzed and used to adjust pharmaceutical dosage which is provided to the patient in a personalized dosage delivery system. Optionally, analyzed data may be further enhanced at a data enhancement station where analyzed data from a multiplicity of central processing stations is accumulated and processed. Enhanced data may then be used to further refine the pharmaceutical dosage, alter the pharmaceutical being used, or develop new findings about the metabolic effects of the pharmaceutical.
    Type: Application
    Filed: March 30, 2001
    Publication date: November 8, 2001
    Inventors: Scott D. Cunningham, Robert R. Dorsch
  • Patent number: 4152591
    Abstract: Apparatus and method for on-stream chemical element monitoring wherein a multiplicity of sample streams are flowed continuously through individual analytical cells and fluorescence analyses are performed on the sample streams in sequence, together with a method of controlling the time duration of each analysis as a function of the concomitant radiation exposure of a preselected perforate reference material interposed in the sample-radiation source path.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: May 1, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Orman R. Averitt, Robert R. Dorsch
  • Patent number: 3937577
    Abstract: An acyclic Zeeman effect atomic absorption spectrometer viewing the sample analyzed continuously and simultaneously with two linear orthogonally polarized radiation beams preselected as to wavelength to effectively cancel out, upon logarithmic ratioing of their electrical analogs, the contribution of adulterants to the mass determination of a trace element in analysis and thereafter obtaining the ratio of the integrated value of the monitored sample logarithmic ratio signal with that of a stored standard sample integrated logarithmic ratio signal as a measure of the concentration of trace element present.
    Type: Grant
    Filed: May 15, 1974
    Date of Patent: February 10, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert R. Dorsch