Patents by Inventor David Theiste
David Theiste 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).
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Patent number: 8547624Abstract: An electrical control system is disclosed for controlling a plurality of variable transmittance windows. The electrical control system comprises a master control circuit and user input circuits for supplying control signals representing transmittance levels for the variable transmission windows, and a plurality of slave window control circuits coupled to the master control circuit, user input circuits and the variable transmittance windows. Each slave window control circuit controls the transmittance of at least one of the variable transmission windows in response to control signals received from the master control circuit and/or user input circuits. Also disclosed are novel methods for the manufacture of an electrochromic device used in variable transmittance windows. Novel structural features for improving heat transfer away from the windows, shielding the window from external loads, and improving the electrical performance of the windows are also disclosed.Type: GrantFiled: June 29, 2011Date of Patent: October 1, 2013Assignee: Gentex CorporationInventors: Kevin L. Ash, Bradley L. Busscher, Robert R. Turnbull, George A. Neuman, David J. Cammenga, David A. Theiste
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Patent number: 8508832Abstract: An electro-optic system is provided that includes a front element a rear element, and an electro-optic medium, the electro-optic medium is adapted to be in at least a high transmittance state and a low transmittance state. The electro-optic system further includes a display device in optical communication with the electro-optic element, the display device including at least one light source and is configured to emit at least a first primary and a second primary, the first and second primaries each having a first hue (hab) when viewed through the electro-optic element in approximately the high transmittance state and a second hue (hab?) when viewed through the electro-optic element in approximately the low transmittance state, wherein a change in the first and second hues (?hab) for both first and second primaries is less than approximately 31 degrees.Type: GrantFiled: April 24, 2012Date of Patent: August 13, 2013Assignee: Gentex CorporationInventors: Kelvin L. Baumann, John A. VanderPloeg, David A. Theiste, Thomas F. Guarr, Henry A. Luten, George A. Neuman
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Publication number: 20130182308Abstract: A variable transmission electrochromic window including: first and second substantially transparent substrates having electrically conductive materials associated therewith; an electrochromic medium contained within a chamber positioned between the first and second substrates which includes at least one solvent, at least one anodic electroactive material, at least one cathodic electroactive material, and wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein the electrochromic window exhibits an Ev of less than approximately 20, and more preferably less than approximately 5, while in a low transmission state during normal daylight conditions.Type: ApplicationFiled: January 17, 2012Publication date: July 18, 2013Inventors: Thomas F. Guarr, David A. Theiste, Kevin L. Ash, David I. Driscoll, Henry A. Luten
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Publication number: 20120243067Abstract: An electro-optic system is provided that includes a front element a rear element, and an electro-optic medium, the electro-optic medium is adapted to be in at least a high transmittance state and a low transmittance state. The electro-optic system further includes a display device in optical communication with the electro-optic element, the display device including at least one light source and is configured to emit at least a first primary and a second primary, the first and second primaries each having a first hue (hab) when viewed through the electro-optic element in approximately the high transmittance state and a second hue (hab?) when viewed through the electro-optic element in approximately the low transmittance state, wherein a change in the first and second hues (?hab) for both first and second primaries is less than approximately 31 degrees.Type: ApplicationFiled: April 24, 2012Publication date: September 27, 2012Inventors: Kelvin L. Baumann, John A. VanderPloeg, David A. Theiste, Thomas F. Guarr, Henry A. Luten, George A. Neuman
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Patent number: 8228590Abstract: An electro-optic system is provided that includes a front element having first and second surfaces, a rear element including third and fourth surfaces, wherein the front and rear elements are sealably bonded together in a spaced-apart relationship to define a chamber, and an electro-optic medium contained in the chamber, and the electro-optic medium is adapted to be in at least a high transmittance state and a low transmittance state.Type: GrantFiled: August 9, 2010Date of Patent: July 24, 2012Assignee: Gentex CorporationInventors: Kelvin L. Baumann, John A. VanderPloeg, David A. Theiste, Thomas F. Guarr, Henry W. Luten, George A. Neuman
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Publication number: 20120033285Abstract: An electro-optic system is provided that includes a front element having first and second surfaces, a rear element including third and fourth surfaces, wherein the front and rear elements are sealably bonded together in a spaced-apart relationship to define a chamber, and an electro-optic medium contained in the chamber, and the electro-optic medium is adapted to be in at least a high transmittance state and a low transmittance state.Type: ApplicationFiled: August 9, 2010Publication date: February 9, 2012Inventors: Kelvin L. Baumann, John A. VanderPloeg, David A. Theiste, Thomas F. Guarr, Henry W. Luten, George A. Neuman
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Publication number: 20110255142Abstract: An electrical control system is disclosed for controlling a plurality of variable transmittance windows. The electrical control system comprises a master control circuit and user input circuits for supplying control signals representing transmittance levels for the variable transmission windows, and a plurality of slave window control circuits coupled to the master control circuit, user input circuits and the variable transmittance windows. Each slave window control circuit controls the transmittance of at least one of the variable transmission windows in response to control signals received from the master control circuit and/or user input circuits. Also disclosed are novel methods for the manufacture of an electrochromic device used in variable transmittance windows. Novel structural features for improving heat transfer away from the windows, shielding the window from external loads, and improving the electrical performance of the windows are also disclosed.Type: ApplicationFiled: June 29, 2011Publication date: October 20, 2011Inventors: Kevin L. Ash, Bradley L. Busscher, Robert R. Turnbull, George A. Neuman, David J. Cammenga, David A. Theiste
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Patent number: 7990603Abstract: An electrical control system is disclosed for controlling a plurality of variable transmittance windows. The electrical control system comprises a master control circuit and user input circuits for supplying control signals representing transmittance levels for the variable transmission windows, and a plurality of slave window control circuits coupled to the master control circuit, user input circuits and the variable transmittance windows. Each slave window control circuit controls the transmittance of at least one of the variable transmission windows in response to control signals received from the master control circuit and/or user input circuits. Also disclosed are novel methods for the manufacture of an electrochromic device used in variable transmittance windows. Novel structural features for improving heat transfer away from the windows, shielding the window from external loads, and improving the electrical performance of the windows are also disclosed.Type: GrantFiled: June 11, 2007Date of Patent: August 2, 2011Assignee: Gentex CorporationInventors: Kevin L. Ash, Bradley L. Busscher, Robert R. Turnbull, George A. Neuman, David J. Cammenga, David A. Theiste
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Patent number: 7855821Abstract: An electrochromic device having an electrochromic medium which includes a compound represented by the following formula: wherein R1-R10 are the same or different and comprise H, an alkyl, cycloalkyl, polycycloalkyl, heterocycloalkyl, aryl, alkaryl, aralkyl, alkoxy, alkenyl, and/or alkynyl group containing approximately 1 to approximately 50 carbon atom(s), wherein the carbon atom(s) 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; with the proviso that R2 and R7 each comprise at least two carbon atoms, at least one of R2 and R7 comprises less than 2 ? hydrogen atoms and is void of a benzyl group.Type: GrantFiled: August 25, 2008Date of Patent: December 21, 2010Assignee: Gentex CorporationInventors: Kelvin L. Baumann, Thomas F. Guarr, David A. Theiste
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Patent number: 7525714Abstract: 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: GrantFiled: December 26, 2006Date of Patent: April 28, 2009Assignee: Gentex CorporationInventors: David L Poll, Kevin L Ash, David A Theiste, Thomas F Guarr, William L Tonar
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Patent number: 7508568Abstract: 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: GrantFiled: March 7, 2007Date of Patent: March 24, 2009Assignee: Gentex CorporationInventors: Rongguang Lin, David A. Theiste, Thomas F. Guarr, Kathy E. Roberts
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Publication number: 20080316574Abstract: An electrochromic device having an electrochromic medium which includes a compound represented by the following formula: wherein R1-R10 are the same or different and comprise H, an alkyl, cycloalkyl, polycycloalkyl, heterocycloalkyl, aryl, alkaryl, aralkyl, alkoxy, alkenyl, and/or alkynyl group containing approximately 1 to approximately 50 carbon atom(s), wherein the carbon atom(s) 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; with the proviso that R2 and R7 each comprise at least two carbon atoms, at least one of R2 and R7 comprises less than 2? hydrogen atoms and is void of a benzyl group.Type: ApplicationFiled: August 25, 2008Publication date: December 25, 2008Inventors: Kelvin L. Baumann, Thomas F. Guarr, David A. Theiste
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Patent number: 7450291Abstract: 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: GrantFiled: July 10, 2007Date of Patent: November 11, 2008Assignee: Gentex CorporationInventors: Thomas F. Guarr, Frederick T. Bauer, David A. Theiste
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Publication number: 20070285759Abstract: An electrical control system is disclosed for controlling a plurality of variable transmittance windows. The electrical control system comprises a master control circuit and user input circuits for supplying control signals representing transmittance levels for the variable transmission windows, and a plurality of slave window control circuits coupled to the master control circuit, user input circuits and the variable transmittance windows. Each slave window control circuit controls the transmittance of at least one of the variable transmission windows in response to control signals received from the master control circuit and/or user input circuits. Also disclosed are novel methods for the manufacture of an electrochromic device used in variable transmittance windows. Novel structural features for improving heat transfer away from the windows, shielding the window from external loads, and improving the electrical performance of the windows are also disclosed.Type: ApplicationFiled: June 11, 2007Publication date: December 13, 2007Inventors: Kevin Ash, Bradley Busscher, Robert Turnbull, George Neuman, David Cammenga, David Theiste
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Publication number: 20070258128Abstract: 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: ApplicationFiled: July 10, 2007Publication date: November 8, 2007Inventors: Thomas Guarr, Frederick Bauer, David Theiste
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Publication number: 20070195398Abstract: 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: ApplicationFiled: March 7, 2007Publication date: August 23, 2007Inventors: Rongguang Lin, David Theiste, Thomas Guarr, Kathy Roberts
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Patent number: 7256924Abstract: 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: GrantFiled: January 30, 2006Date of Patent: August 14, 2007Assignee: Gentex CorporationInventors: Thomas F. Guarr, Frederick T. Bauer, David A. Theiste
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Publication number: 20070103763Abstract: 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: ApplicationFiled: December 26, 2006Publication date: May 10, 2007Inventors: David Poll, Kevin Ash, David Theiste, Thomas Guarr, William Tonar
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Patent number: 7193764Abstract: 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: GrantFiled: September 20, 2004Date of Patent: March 20, 2007Assignee: Gentex CorporationInventors: Rongguang Lin, David Theiste, Thomas F. Guarr, Kathy E. Roberts
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Patent number: 7154657Abstract: 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: GrantFiled: November 14, 2005Date of Patent: December 26, 2006Assignee: Gentex CorporationInventors: David L. Poll, Kevin L. Ash, David A. Theiste, Thomas F. Guarr, William L. Tonar