Kathy Roberts

6525861, Feb 25, 2003

Dec 10, 2001

10/012937

Kathy E. Roberts - East Grand Rapids MI
Thomas F. Guarr - Holland MI

Gentex Corporation - Zeeland MI

G02F 115

359265, 359272, 359273, 359275

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.

6545794, Apr 8, 2003

Dec 23, 2000

09/745639

Kevin L. Ash - Grand Rapids MI
William L. Tonar - Holland MI
Frederick T. Bauer - Holland MI
Kathy E. Roberts - East Grand Rapids MI
David A. Theiste - Byron Center MI

Gentex Corporation - Zeeland MI

G02F 1153

359270, 359265, 359267

An electrochromic device comprising: a first glass element having an electrically conductive material associated therewith, wherein said first element comprises a height (h ), a width (w ), a thickness (t ), an inner surface, and an outer surface; a second element having an electrically conductive material associated therewith, wherein said second element comprises a height (h ), a width (w ) , and a thickness (t ), an inner surface, and an outer surface; a cell spacing (c) which comprises a distance between said inner surface of said first element and said inner surface of said second element; a gelled electrochromic medium contained within a chamber positioned between said first and second elements; wherein (h ), (w ), (t ), (h ), (w ), (t ), and (c) are numerical values in millimeters; and wherein (h ), (w ), and (t ) of said first element, and (h ), (w ), and (t ) of said second element and (c) comprise numerical values such that the following inequality is satisfied:.

6635194, Oct 21, 2003

Aug 28, 2001

09/940944

Leroy J. Kloeppner - Jenison MI
Thomas F. Guarr - Holland MI
Kevin L. Ash - Grand Rapids MI
Kathy E. Roberts - East Grand Rapids MI

Gentex Corporation - Zeeland MI

G02F 1153

252583, 359265, 359267, 359272, 359273, 359275

An electrochromic medium for use in an electrochromic device comprising: at least one solvent; a cathodic electroactive material; an anodic electroactive material; wherein at least one of the cathodic and anodic electroactive materials is electrochromic; and a self-healing cross-linked polymer gel.

6700693, Mar 2, 2004

Oct 30, 2002

10/283506

Kathy E. Roberts - East Grand Rapids MI
Rongguang Lin - Holland MI
Kelvin L. Baumann - Holland MI
Thomas F. Guarr - Holland MI
David A. Theiste - Byron Center MI

Gentex Corporation - Zeeland MI

G02F 115

359265, 359267, 359268, 359275, 359271, 359273

An electrochromic device comprising: a first substantially transparent substrate having an electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; and an electrochromic medium contained within a chamber positioned between the first and second substrates which comprises: at least one solvent; an anodic material; a cathodic material, wherein both of the anodic and cathodic materials are electroactive and at least one of the anodic and cathodic materials is electrochromic, and wherein at least one of the anodic and cathodic materials is slow-diffusing; and an electron shuttle, wherein the electron shuttle serves to decrease switching time of the electrochromic device relative to the same without the electron shuttle.

6710906, Mar 23, 2004

Nov 13, 2001

10/054108

Thomas F. Guarr - Holland MI
Kathy E. Roberts - East Grand Rapids MI
Rongguang Lin - Holland MI
Kelvin L. Baumann - Holland MI
David A. Theiste - Byron Center MI
Punam Giri - Holland MI
Elizabeth M. Sanford - Holland MI

Gentex Corporation - Zeeland MI

G02F 115

359265, 359267, 359270, 359273

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 wherein at least one of the anodic and cathodic electroactive materials is associated with a diffusion coefficient controlling moiety which serves to lower the diffusion coefficient of the associated material relative to the same without the diffusion coefficient controlling moiety.

6778311, Aug 17, 2004

Feb 21, 2003

10/372073

Kathy E. Roberts - East Grand Rapids MI
Thomas F. Guarr - Holland MI

Gentex Corporation - Zeeland MI

G02F 115

359265, 359273, 359275, 252586

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.

6934067, Aug 23, 2005

Apr 3, 2002

10/115433

Kevin L. Ash - Grand Rapids MI, US
William L. Tonar - Holland MI, US
Frederick T. Bauer - Holland MI, US
Kathy E. Roberts - East Grand Rapids MI, US

Gentex Corporation - Zeeland MI

G02F001/153

359273, 359268, 359265, 359275

An improved electrochromic rearview mirror for motor vehicles, the mirror incorporating thin front and rear spaced glass elements having a thickness ranging from about 0. 5 to about 1. 5. A layer of transparent conductive material is placed onto the mirror's second surface, and either another layer of transparent conductive material or a combined reflector/electrode is placed onto the mirror's third surface. A chamber, defined by the layers on the interior surfaces of the front and rear glass elements and a peripheral sealing member, contains a free-standing gel comprising a solvent and a crosslinked polymer matrix. The chamber further contains at least one electrochromic material in solution with the solvent and interspersed in the crosslinked polymer matrix. The gel cooperatively interacts with the thin glass elements to form a thick, strong unitary member which is resistant to flexing, warping, bowing and/or shattering and further allows the mirror to exhibit reduced vibrational distortion and double imaging.

7001540, Feb 21, 2006

Sep 15, 2003

10/662665

Leroy J. Kloeppner - Jenison MI, US
Thomas F. Guarr - Holland MI, US
Kevin L. Ash - Grand Rapids MI, US
Kathy E. Roberts - East Grand Rapids MI, US

Gentex Corporation - Zeeland MI

G02F 1/153
G02F 1/00

252583, 252586, 359265, 359267, 359272, 359273, 359275

An electrochromic medium for use in an electrochromic device comprising: at least one solvent; a cathodic electroactive material; an anodic electroactive material; wherein at least one of the cathodic and anodic electroactive materials is electrochromic; and a self-healing cross-linked polymer gel.