Patents by Inventor Marc D. Donohue

Marc D. Donohue 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).

  • Method for extraction and purification of oils from microalgal biomass using high-pressure COas a solute
    Patent number: 9359580
    Abstract: The present invention provides methods for the isolation of oils from intact or lysed microorganisms in aqueous media with pressurized carbon dioxide as a solute. Such oils may be used for the production of biofuels. Also provided for are methods for harvesting and rupturing whole cell microorganisms in aqueous media with pressurized carbon dioxide as a solute.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: June 7, 2016
    Assignees: THE JOHNS HOPKINS UNIVERSITY, SYNAPTIC RESEARCH, LLC
    Inventors: Marc D. Donohue, Michael J. Betenbaugh, George A. Oyler, Julian N. Rosenberg
  • METHOD FOR EXTRACTION AND PURIFICATION OF OILS FROM MICROALGAL BIOMASS USING HIGH-PRESSURE CO2 AS A SOLUTE
    Publication number: 20140004605
    Abstract: The present invention provides methods for the isolation of oils from intact or lysed microorganisms in aqueous media with pressurized carbon dioxide as a solute. Such oils may be used for the production of biofuels.
    Type: Application
    Filed: August 16, 2011
    Publication date: January 2, 2014
    Applicants: SYNAPTIC RESEARCH LLC, THE JOHNS HOPKINS UNIVERSITY
    Inventors: Marc D. Donohue, Michael J. Betenbaugh, George A. Oyler, Julian N. Rosenberg
  • Method for spraying polymeric compositions with reduced solvent emission and enhanced atomization
    Patent number: 5290603
    Abstract: Methods are presented by which polymeric compositions, such as coating compositions, can be sprayed with compressed fluids, such as carbon dioxide, nitrous oxide, or ethane, at higher solids levels and with finer atomization to give improved spray application quality with reduced emission of solvent.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: March 1, 1994
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Kenneth A. Nielsen, David C. Busby, Marc D. Donohue, Charles W. Glancy
  • Supercritical fluids as diluents in liquid spray application of coatings
    Patent number: 5027742
    Abstract: A liquid coatings application process and apparatus is provided in which supercritical fluids, such as supercritical carbon dioxide fluid, are used to reduce to application consistency viscous coatings compositions to allow for their application as liquid sprays.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: July 2, 1991
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventors: Chinsoo Lee, Kenneth L. Hoy, Marc D. Donohue
  • Supercritical fluids as diluents in liquid spray application of coatings
    Patent number: 4923720
    Abstract: A liquid coatings application process and apparatus is provided in which supercritical fluids, such as supercritical carbon dioxide fluid, are used to reduce to application consistency viscous coatings compositions to allow for their application as liquid sprays.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: May 8, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Chinsoo Lee, Kenneth L. Hoy, Marc D. Donohue