Chance Ray Lehman

US Patent:

7714039, May 11, 2010

Filed:

Jan 23, 2009

Appl. No.:

12/358771

Inventors:

Diana M. Cordova - Duncanville TX, US
Mutlu Karakelle - Fort Worth TX, US
Chance Lehman - Dallas TX, US
Douglas C. Schlueter - Azle TX, US

Assignee:

Alcon, Inc. - Hunenberg

International Classification:

G02B 1/04
G02C 7/04
A61F 2/16
A61F 2/14
A61F 2/18
A61M 5/00

US Classification:

523106, 351160 R, 523113, 623 512, 623 611, 623 10, 604 8

Abstract:

Disclosed are soft, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain one or more aryl acrylic hydrophobic monomers as principal device-forming monomers and a tack-reducing macromer additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

US Patent:

7790825, Sep 7, 2010

Filed:

May 5, 2009

Appl. No.:

12/436022

Inventors:

Chance Lehman - Dallas TX, US
Charles Freeman - Granbury TX, US

Assignee:

Alcon, Inc. - Hunenberg

International Classification:

C08F 18/10
C08F 20/18
C08F 220/18
C08F 220/10
A61F 2/16
G02B 1/04

US Classification:

526326, 526319, 5263285, 5263291, 523106, 623 611

Abstract:

High refractive index copolymers suitable for use in ophthalmic devices are disclosed. The copolymers comprise a single aryl hydrophobic monomer as a device forming monomer. In addition, the copolymers comprise a non-polymerizable block copolymer surfactant. The copolymers have a reduced tendency to form glistenings when stored in water at physiological temperatures.

US Patent:

8058323, Nov 15, 2011

Filed:

Jan 23, 2009

Appl. No.:

12/358821

Inventors:

Diana M. Cordova - Duncanville TX, US
Mutlu Karakelle - Fort Worth TX, US
Chance Lehman - Dallas TX, US
Douglas C. Schlueter - Azle TX, US

Assignee:

Novartis AG - Basel

International Classification:

C08F 290/06
C08F 18/02
C08F 22/10
C08F 18/16
C08F 20/18
C08F 220/30
G02B 1/04
G02C 7/04
A61F 2/14
A61F 2/16

US Classification:

523107, 523106, 351160 R, 623 611, 623 659, 526279, 526319, 526321, 5263231, 5263232, 526326

Abstract:

Disclosed are soft, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain one or more aryl acrylic hydrophobic monomers as principal device-forming monomers and a tack-reducing macromer additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

US Patent:

8362177, Jan 29, 2013

Filed:

May 4, 2011

Appl. No.:

13/100400

Inventors:

Chance Lehman - Dallas TX, US
Charles Freeman - Granbury TX, US
Walter R. Laredo - Fort Worth TX, US
Ali E. Akinay - Mansfield TX, US

Assignee:

Novartis AG - Basel

International Classification:

C08F 18/10
C08F 20/18
A61F 2/16

US Classification:

526326, 523106, 623 611

Abstract:

High refractive index copolymers with reduced tack are disclosed. The copolymers, which are particularly suitable for use as ophthalmic device materials, comprise a benzhydryl methacrylate or benzhydryl methacrylate derivative monomer.

US Patent:

20080021129, Jan 24, 2008

Filed:

Jul 20, 2007

Appl. No.:

11/780649

Inventors:

Diana M. Cordova - Duncanville TX, US
Mutlu Karakelle - Fort Worth TX, US
Chance Lehman - Dallas TX, US
Douglas C. Schlueter - Azle TX, US
Joseph I. Weinschenk - Fort Worth TX, US

Assignee:

ALCON MANUFACTURING LTD. - Fort Worth TX

International Classification:

G02C 7/04
A61F 2/02
A61F 2/16
C08F 20/06

US Classification:

523107, 5253265, 604 8, 623 10, 623 512, 623 611

Abstract:

Disclosed are soft, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain an aryl acrylic hydrophobic monomer as the single principal device-forming monomer and a tack-reducing macromer additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

US Patent:

20080021548, Jan 24, 2008

Filed:

Jul 20, 2007

Appl. No.:

11/780635

Inventors:

Diana M. Cordova - Duncanville TX, US
Mutlu Karakelle - Fort Worth TX, US
Chance Lehman - Dallas TX, US
Douglas C. Schlueter - Azle TX, US
Joseph I. Weinschenk - Fort Worth TX, US

Assignee:

ALCON MANUFACTURING LTD. - Fort Worth TX

International Classification:

A61F 2/16
A61F 2/02
C08F 20/06
G02C 7/04

US Classification:

623 611, 351160 R, 523106, 5253295, 604 8, 623 10, 623 512

Abstract:

Disclosed are soft, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain an aryl acrylic hydrophobic monomer as the single principal device-forming monomer and a tack-reducing macromer additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

US Patent:

20090248150, Oct 1, 2009

Filed:

Mar 12, 2009

Appl. No.:

12/402865

Inventors:

Chance Lehman - Dallas TX, US

International Classification:

A61F 2/16

US Classification:

623 66, 523113

Abstract:

The present invention is directed ophthalmic device materials and, more particularly to an intraocular lens (IOL) formed of a hydrogel material. The hydrogel material includes an acrylate polymer and a radiation resistant compound. The material typically has a relatively high refractive index and/or exhibits a desired degree of radiation protection.