Patents by Inventor David John Hesse

David John Hesse 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).

  • Multiphase reaction process using microchannel technology
    Patent number: 8383872
    Abstract: The disclosed invention relates to a process for conducting a multiphase reaction in a microchannel. The process comprises: forming a multiphase reaction mixture comprising a first reactant and a second reactant; the first reactant comprising at least one liquid; the second reactant comprising at least one gas, at least one liquid, or a combination of at least one gas and at least one liquid; the first reactant forming a continuous phase in the multiphase reaction mixture; the second reactant forming gas bubbles and/or liquid droplets dispersed in the continuous phase; and reacting the first reactant with the second reactant in a process microchannel in the presence of at least one catalyst to form at least one product.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: February 26, 2013
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, David John Hesse, Paul Neagle, Micheal Jay Lamont, Francis P. Daly, Kai Tod Paul Jarosch, Richard Stevenson, Laura J. Silva
  • Multiphase mixing process using microchannel process technology
    Patent number: 7816411
    Abstract: The disclosed invention relates to a process for making a multiphase mixture, comprising: flowing a first fluid stream through a process microchannel, the first fluid stream comprising at least one liquid and/or at least one gas, the process microchannel having an apertured section; flowing a second fluid stream through the apertured section into the process microchannel in contact with the first fluid stream to form the multiphase mixture, the second fluid stream comprising at least one gas and/or at least one microbody-forming material, the first fluid stream forming a continuous phase in the multiphase mixture, the second fluid stream forming a discontinuous phase dispersed in the continuous phase.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: October 19, 2010
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Laura J. Silva, David John Hesse, Michael Alan Marchiando, Micheal Jay Lamont, Dongming Qiu, Terence Andrew Dritz, Kristina M. Pagnotto, Richard Stevenson, Steven T. Perry, Maddalena Fanelli, Ravi Arora, Bin Yang, Sean Patrick Fitzgerald, Timothy J. Sullivan, Kai Tod Paul Jarosch, Thomas Yuschak
  • MULTIPHASE MIXING PROCESS USING MICROCHANNEL PROCESS TECHNOLOGY
    Publication number: 20100068366
    Abstract: The disclosed invention relates to a process for making a multiphase mixture, comprising: flowing a first fluid stream through a process microchannel, the first fluid stream comprising at least one liquid and/or at least one gas, the process microchannel having an apertured section; flowing a second fluid stream through the apertured section into the process microchannel in contact with the first fluid stream to form the multiphase mixture, the second fluid stream comprising at least one gas and/or at least one microbody-forming material, the first fluid stream forming a continuous phase in the multiphase mixture, the second fluid stream forming a discontinuous phase dispersed in the continuous phase.
    Type: Application
    Filed: November 23, 2009
    Publication date: March 18, 2010
    Inventors: Anna Lee Tonkovich, Laura J. Silva, David John Hesse, Michael Alan Marchiando, Micheal Jay Lamont, Dongming Qiu, Terrence Andrew Dritz, Kristina M. Pagnotto, Richard Stevenson, Steven T. Perry, Maddalena Fanelli, Ravi Arora, Bin Yang, Sean Patrick Fitzgerald, Timothy J. Sullivan, Kai Tod Paul Jarosch, Thomas Yuschak
  • Multiphase mixing process using microchannel process technology
    Patent number: 7622509
    Abstract: The disclosed invention relates to a process for making a multiphase mixture, comprising: flowing a first fluid stream through a process microchannel, the first fluid stream comprising at least one liquid and/or at least one gas, the process microchannel having an apertured section; flowing a second fluid stream through the apertured section into the process microchannel in contact with the first fluid stream to form the multiphase mixture, the second fluid stream comprising at least one gas and/or at least one microbody-forming material, the first fluid stream forming a continuous phase in the multiphase mixture, the second fluid stream forming a discontinuous phase dispersed in the continuous phase.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: November 24, 2009
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Laura J. Silva, David John Hesse, Michael Alan Marchiando, Michael Jay Lamont, Dongming Qiu, Terence Andrew Dritz, Kristina M. Pagnotto, Richard Stevenson, Steven T. Perry, Maddalena Fanelli, Ravi Arora, Bin Yang, Sean Patrick Fitzgerald, Timothy J. Sullivan, Kai Tod Paul Jarosch, Thomas Yuschak
  • Process for producing hydrogen peroxide using microchannel technology
    Patent number: 7029647
    Abstract: This invention relates to a process for making hydrogen peroxide in a microchannel reactor. The process comprises flowing a process feed stream and a staged addition feed stream in a process microchannel in contact with each other to form a reactant mixture comprising O2 and H2, and contacting a catalyst with the reactant mixture in the process microchannel to convert the reactant mixture to a product comprising hydrogen peroxide; transferring heat from the process microchannel to a heat exchanger; and removing the product from the process microchannel.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: April 18, 2006
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Kai Tod Paul Jarosch, David John Hesse