Patents by Inventor Gregory M. Jamison

Gregory M. Jamison 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: 7622596
    Abstract: Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. The surfactants become soluble in water when anionic salts are formed through the deprotonation of the surfactant headgroups by the addition of potassium hydroxide. When either surfactant is exposed to temperature above about 60° C., the retro Diels-Alder reaction occurs, yielding hydrophilic and hydrophobic fragments or the aqueous solutions of the surfactants subsequently exhibit loss of all surface-active behavior.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: November 24, 2009
    Assignee: Sandia Corporation
    Inventors: James R. McElhanon, Blake A. Simmons, Thomas Zifer, Gregory M. Jamison, Douglas A. Loy, Kamyar Rahimian, Timothy M. Long, David R. Wheeler, Chad L. Staiger
  • Patent number: 7595349
    Abstract: Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. The surfactants become soluble in water when anionic salts are formed through the deprotonation of the surfactant headgroups by the addition of potassium hydroxide. When either surfactant is exposed to temperature above about 60° C., the retro Diels-Alder reaction occurs, yielding hydrophilic and hydrophobic fragments or the aqueous solutions of the surfactants subsequently exhibit loss of all surface-active behavior.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: September 29, 2009
    Assignee: Sandia Corporation
    Inventors: James R. McElhanon, Blake A. Simmons, Thomas Zifer, Gregory M. Jamison, Douglas A. Loy, Kamyar Rahimian, Timothy M. Long, David R. Wheeler, Chad L. Staiger
  • Patent number: 7378533
    Abstract: The present invention describes surfactants of formula (I), wherein R, RN, and m are defined herein, processes for their preparation, and methods for their decomposition.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: May 27, 2008
    Assignee: Sandia Corporation
    Inventors: James R. McElhanon, Gregory M. Jamison, Timothy M. Long, Douglas A. Loy, Kamyar Rahimian, Blake A. Simmons, Chad L. Staiger, David R. Wheeler, Thomas Zifer
  • Patent number: 7358221
    Abstract: A class of surfactant molecules whose structure includes regularly spaced unsaturation in the tail group and thus, can be readily decomposed by ring-closing metathesis, and particularly by the action of a transition metal catalyst, to form small molecule products. These small molecules are designed to have increased volatility and/or enhanced solubility as compared to the original surfactant molecule and are thus easily removed by solvent extraction or vacuum extraction at low temperature. By producing easily removable decomposition products, the surfactant molecules become particularly desirable as template structures for preparing meso- and microstructural materials with tailored properties.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: April 15, 2008
    Assignee: Sandia Corporation
    Inventors: Gregory M. Jamison, David R. Wheeler, Douglas A. Loy, Blake A. Simmons, Timothy M. Long, James R. McElhanon, Kamyar Rahimian, Chad L. Staiger
  • Patent number: 7351837
    Abstract: The present invention describes surfactants of formula (I), wherein R, RN, and m are defined herein, processes for their preparation, and methods for their decomposition.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: April 1, 2008
    Assignee: Sandia Corporation
    Inventors: James R. McElhanon, Gregory M. Jamison, Timothy M. Long, Douglas A. Loy, Kamyar Rahimian, Blake A. Simmons, Chad L. Staiger, David R. Wheeler, Thomas Zifer
  • Patent number: 7022861
    Abstract: Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. The surfactants become soluble in water when anionic salts are formed through the deprotonation of the surfactant headgroups by the addition of potassium hydroxide. When either surfactant is exposed to temperature above about 60° C., the retro Diels-Alder reaction occurs, yielding hydrophilic and hydrophobic fragments and the aqueous solutions of the surfactants subsequently exhibit loss of all surface-active behavior.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: April 4, 2006
    Assignee: Sandia National Laboratories
    Inventors: James R. McElhanon, Blake A. Simmons, Thomas Zifer, Gregory M. Jamison, Douglas A. Loy, Kamyar Rahimian, Timothy M. Long, David R. Wheeler, Chad L. Staiger
  • Patent number: 6593062
    Abstract: A method of making a stacked three-dimensional refractive index structure in photosensitive materials using photo-patterning where first determined is the wavelength at which a photosensitive material film exhibits a change in refractive index upon exposure to optical radiation, a portion of the surfaces of the photosensitive material film is optically irradiated, the film is marked to produce a registry mark. Multiple films are produced and aligned using the registry marks to form a stacked three-dimensional refractive index structure.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: July 15, 2003
    Assignee: Sandia Corporation
    Inventors: Barrett George Potter, Jr., Kelly Simmons Potter, David R. Wheeler, Gregory M. Jamison