Patents by Inventor Thomas Guarr

Thomas Guarr 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).

  • Publication number: 20070258128
    Abstract: A multi-cell electrochromic device comprising: first and second electrochromic device sub-assemblies which each comprise; a first substantially transparent substrate having an electrically conductive material associated therewith and second substrate having an electrically conductive material associated therewith; and an electrochromic medium contained within a chamber positioned between the first and second substrates, wherein the electrochromic medium comprises: at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein the first and second electrochromic device sub-assemblies are in optical alignment, and further wherein the multi-cell electrochromic device exhibits a transmittance of less than approximately 1.5% in a low transmission state.
    Type: Application
    Filed: July 10, 2007
    Publication date: November 8, 2007
    Inventors: Thomas Guarr, Frederick Bauer, David Theiste
  • Publication number: 20070195398
    Abstract: The present invention is directed to an electrochemical medium for use in a reversible electrodeposition device including at least one solvent, at least one anodic electroactive material, at least one active metal; and optionally at least one redox buffer.
    Type: Application
    Filed: March 7, 2007
    Publication date: August 23, 2007
    Inventors: Rongguang Lin, David Theiste, Thomas Guarr, Kathy Roberts
  • Publication number: 20070103763
    Abstract: An electrochromic window assembly is disclosed that includes a first substrate and a second substrate that is maintained in a parallel and spaced relation from the first substrate by means of a window frame and spacer. The window assembly further includes an electrochromic device mounted within the airtight chamber formed between the first and second substrates. Electrochromic device 22 may be mounted so as to provide an air chamber between first substrate 12, which is the external substrate, and electrochromic device 22. At least one of the chambers formed between substrates 12 and 14 and electrochromic device 22 may be filled with an insulating gas such as argon. Also disclosed are novel methods for manufacture of an electrochromic device for incorporation into such a window assembly. A novel electrochromic device is also disclosed having electrical bus clips secured about the entire periphery of the electrochromic device.
    Type: Application
    Filed: December 26, 2006
    Publication date: May 10, 2007
    Inventors: David Poll, Kevin Ash, David Theiste, Thomas Guarr, William Tonar
  • Publication number: 20060268385
    Abstract: A multi-cell electrochromic device comprising: first and second electrochromic device sub-assemblies which each comprise; a first substantially transparent substrate having an electrically conductive material associated therewith and second substrate having an electrically conductive material associated therewith; and an electrochromic medium contained within a chamber positioned between the first and second substrates, wherein the electrochromic medium comprises: at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein the first and second electrochromic device sub-assemblies are in optical alignment, and further wherein the multi-cell electrochromic device exhibits a transmittance of less than approximately 1.5% in a low transmission state.
    Type: Application
    Filed: January 30, 2006
    Publication date: November 30, 2006
    Inventors: Thomas Guarr, Frederick Bauer, David Theiste
  • Publication number: 20060139726
    Abstract: An electrochromic medium for use in an electrochromic device comprising: at least one solvent; an anodic electroactive material; a cathodic electroactive material; wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and a self-healing, cross-linked polymer matrix.
    Type: Application
    Filed: February 16, 2006
    Publication date: June 29, 2006
    Inventors: Leroy Kloeppner, Thomas Guarr, Kevin Ash, Kathy Roberts, David Theiste
  • Publication number: 20060103911
    Abstract: An electrochromic device having an electrochromic medium comprising: a material represented by the following formula: wherein X comprises N—R10, O, or S; wherein R1-R10 are defined herein with the proviso that at least one of R5 and R10 comprises an alkyl, cycloalkyl, polycycloalkyl, heterocycloalkyl, aryl, alkaryl, aralkyl, alkoxy, alkenyl, and/or alkynyl group containing 4 to approximately 50 carbon atoms, wherein at least one of the carbon atoms may be a linking group to, or part of, a halogen, a N, O, and/or S containing moiety, and/or one or more functional groups comprising alcohols, esters, ammonium salts, phosphonium salts, and combinations thereof, and wherein at least one of R5 and R10 is void of any ? hydrogen atoms.
    Type: Application
    Filed: November 10, 2005
    Publication date: May 18, 2006
    Inventors: Kelvin Baumann, Thomas Guarr, Punam Giri, Mark Muyskens, Sue Franz
  • Publication number: 20060077511
    Abstract: An electrochromic window assembly is disclosed that includes a first substrate and a second substrate that is maintained in a parallel and spaced relation from the first substrate by means of a window frame and spacer. The window assembly further includes an electrochromic device mounted within the airtight chamber formed between the first and second substrates. Electrochromic device 22 may be mounted so as to provide an air chamber between first substrate 12, which is the external substrate, and electrochromic device 22. At least one of the chambers formed between substrates 12 and 14 and electrochromic device 22 may be filled with an insulating gas such as argon. Also disclosed are novel methods for manufacture of an electrochromic device for incorporation into such a window assembly. A novel electrochromic device is also disclosed having electrical bus clips secured about the entire periphery of the electrochromic device.
    Type: Application
    Filed: November 14, 2005
    Publication date: April 13, 2006
    Inventors: David Poll, Kevin Ash, David Theiste, Thomas Guarr, William Tonar
  • Publication number: 20060023290
    Abstract: An electrochromic medium for use in a tristate electrochromic device, comprising: (a) at least one solvent; (b) at least one anodic material; (c) at least one cathodic material, wherein both of the anodic and cathodic materials are electroactive and at least one of the anodic and cathodic materials is electrochromic; (d) wherein, in a first state, the electrochromic medium exhibits a maximum light transmission; (e) wherein, in a second state, variable attenuation occurs to a significant extent in one of visible radiation or near-infrared radiation without significant attenuation in the other; and (f) wherein, in a third state, variable attenuation occurs to a significant extent in the other spectral region.
    Type: Application
    Filed: September 27, 2005
    Publication date: February 2, 2006
    Inventors: Punam Giri, Thomas Guarr
  • Publication number: 20050280885
    Abstract: An electrochromic device comprising: (a) a first substantially transparent substrate having an electrically conductive material associated therewith; (b) a second substrate having an electrically conductive material associated therewith; (c) an electrochromic medium contained within a chamber positioned between the first and second substrates which comprises: (1) a solvent; (2) a cathodic electroactive material; (3) an anodic electroactive material, wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and (4) a color-stabilizing additive, wherein the color-stabilizing additive is electroactive within a normal operating voltage of the electrochromic device; and (d) means associated with the color-stabilizing additive for maintaining an at least nearly colorless electrochromic device while the electrochromic device is in an open circuit and/or zero potential state relative to the same device without the color-stabilizing additive.
    Type: Application
    Filed: April 1, 2005
    Publication date: December 22, 2005
    Inventors: Jeffrey Lomprey, Thomas Guarr
  • Publication number: 20050270620
    Abstract: According to the present invention, a rearview mirror comprises a first substrate having a front surface and a rear surface, a reflective coating disposed on a surface of the first substrate, and an electronic circuit component secured to the rear surface of the first substrate. The mirror element may be an electrochromic mirror element comprising a transparent second substrate positioned in front of the first substrate. The electronic component secured to the rear surface may be a component of a drive circuit for the electrochromic mirror element. The rearview mirror element may further comprise electrically conductive tracings provided on the rear surface of the first substrate electrically coupled to the electrical component. The tracings may be used to electrically couple the drive circuit to the electrodes of the electrochromic mirror element. The tracings may be deposited on the rear surface using numerous methods including inkjet printing techniques.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 8, 2005
    Inventors: Frederick Bauer, Robert Turnbull, Thomas Guarr, Leroy Kloeppner, David Eaton, Joel Stray, Barry Nelson
  • Publication number: 20050259310
    Abstract: An electrochromic medium for use in a tristate electrochromic device, comprising: (a) at least one solvent; (b) at least one anodic material; (c) at least one cathodic material, wherein both of the anodic and cathodic materials are electroactive and at least one of the anodic and cathodic materials is electrochromic; (d) wherein, in a first state, the electrochromic medium exhibits a maximum light transmission; (e) wherein, in a second state, variable attenuation occurs to a significant extent in one of visible radiation or near-infrared radiation without significant attenuation in the other; and (f) wherein, in a third state, variable attenuation occurs to a significant extent in the other spectral region.
    Type: Application
    Filed: April 1, 2005
    Publication date: November 24, 2005
    Inventors: Punam Giri, Thomas Guarr
  • Publication number: 20050117193
    Abstract: An electrochromic window assembly is disclosed that includes a first substrate and a second substrate that is maintained in a parallel and spaced relation from the first substrate by means of a window frame and spacer. The window assembly further includes an electrochromic device mounted within the airtight chamber formed between the first and second substrates. Electrochromic device 22 may be mounted so as to provide an air chamber between first substrate 12, which is the external substrate, and electrochromic device 22. At least one of the chambers formed between substrates 12 and 14 and electrochromic device 22 may be filled with an insulating gas such as argon. Also disclosed are novel methods for manufacture of an electrochromic device for incorporation into such a window assembly. A novel electrochromic device is also disclosed having electrical bus clips secured about the entire periphery of the electrochromic device.
    Type: Application
    Filed: January 10, 2005
    Publication date: June 2, 2005
    Inventors: David Poll, Kevin Ash, David Theiste, Thomas Guarr, William Tonar
  • Publication number: 20050111070
    Abstract: The present invention is directed to a reversible electrodeposition device comprising: a first substrate having an electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; a nucleation layer at least partially covering at least one of the electrically conductive materials of the first and second substrates; an electrochemical medium contained within a chamber positioned between the first and second substrates.
    Type: Application
    Filed: September 20, 2004
    Publication date: May 26, 2005
    Inventors: Rongguang Lin, David Theiste, Thomas Guarr, Kathy Roberts
  • Publication number: 20050078347
    Abstract: The present invention is directed to a reversible electrodeposition device comprising: a first substrate having an electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; a nucleation layer at least partially covering at least one of the electrically conductive materials of the first and second substrates; an electrochemical medium contained within a chamber positioned between the first and second substrates which comprises: at least one solvent; an anodic electroactive material; and cathodic electroactive material; and compositions and/or concentrations associated with the electrochemical medium which enhances the electrochemical performance of the electrodeposition device.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 14, 2005
    Inventors: Rongguang Lin, David Theiste, Thomas Guarr
  • Publication number: 20050012079
    Abstract: An electrochromic medium for use in an electrochromic device comprising: at least one solvent; an anodic electroactive material; a cathodic electroactive material, wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and a current-reducing additive, wherein the current-reducing additive comprises a polymer present in an effective concentration to materially reduce the current of the electrochromic medium upon application of an electrical potential, relative to an electrochromic medium without the current-reducing additive, while maintaining an electrochromic medium viscosity which facilitates acceptable production rates without a problematic degree of seal or other device component failure.
    Type: Application
    Filed: July 2, 2004
    Publication date: January 20, 2005
    Inventors: Kathy Roberts, Thomas Guarr