Xiugao Wang Tr Liao

US Patent:

6713583, Mar 30, 2004

Filed:

Feb 23, 2001

Appl. No.:

09/792841

Inventors:

Xiugao Liao - Irvine CA

Assignee:

Advanced Medical Optics, Inc. - Santa Ana CA

International Classification:

C08F11802

US Classification:

526319, 5263031, 5263071, 526318, 5263181, 52631844, 526320, 5263292, 623 611, 623 656

Abstract:

Ophthalmic lenses, such as intraocular lenses, include cross-linked polymeric materials having a first constituent derived from a first monomeric component selected from the group consisting of acrylates, methacrylates and mixtures thereof, and a second constituent derived from a second component in an amount effective as a cross linker in the cross-linked polymeric material. The cross-linked polymeric material has branched chain alkyl groups, preferably included with at least a portion of the first monomeric component, in an amount effective to reduce the tackiness of the cross-linked polymeric material relative to a substantially identical cross-linked polymeric material without the branched chain alkyl groups.

US Patent:

6737448, May 18, 2004

Filed:

Jun 3, 2002

Appl. No.:

10/161030

Inventors:

Xiugao Liao - Irvine CA

Assignee:

Staar Surgical Company - Monrovia CA

International Classification:

G02C 702

US Classification:

523106, 526227, 526305, 5253294, 525937, 351159, 351160 R

Abstract:

High refractive index, optically clear and soft hydrophobic acrylamide copolymers and ophthalmic lenses made therefrom are provided. The copolymers are comprised of a hydrophobic acrylamide monomer of N-Benzyl-N-isopropylacrylamide and at least one monomer of an alkyl acrylate and/or alkyl methacrylate. The copolymers and ophthalmic lenses of the present invention are hydrophobic and soft, with a low glass transition temperature (Tg) and a high refractive index.

US Patent:

6780899, Aug 24, 2004

Filed:

Oct 24, 2002

Appl. No.:

10/279555

Inventors:

Xiugao Liao - Irvine CA
Vijay Gulati - Lake Forest CA

Assignee:

Medennium, Inc. - Irvine CA

International Classification:

A61F 214

US Classification:

523106, 623 5, 623 6, 351160 H

Abstract:

Ocular implants composed of homopolymers containing stable elasticity inducing crosslinkers which contain rigid chemical groups disposed between at least two polymerizable ethyleneically unsaturated chemical groups are disclosed. These ocular implants are stable, elastic, soft, optically clear, have high refractive index and low-tack surfaces.

US Patent:

RE38935, Jan 10, 2006

Filed:

Jun 4, 2002

Appl. No.:

10/161806

Inventors:

Harish C. Makker - Mission Viejo CA, US
Xiugao Liao - Irvine CA, US

Assignee:

Advanced Medical Optics, Inc. - Santa Ana CA

International Classification:

A61F 2/14

US Classification:

623 516, 623 656

Abstract:

Ophthalmic lenses, such as intraocular lenses, include crosslinked polymeric materials having a first constituent derived from a first monomeric component selected from the group consisting of 2-phenylpropyl acrylate or methacrylate and mixtures thereof, and a second constituent derived from a second component in an amount effective as a crosslinker in the crosslinked polymeric material. The crosslinked polymeric material has branched chain alkyl groups, in an amount effective to reduce the tackiness of the crosslinked polymeric material relative to a substantially identical crosslinked polymeric material without branched chain alkyl groups.

US Patent:

7071244, Jul 4, 2006

Filed:

Dec 3, 2002

Appl. No.:

10/308803

Inventors:

Xiugao Liao - Irvine CA, US

Assignee:

STAAR Surgical Company - Monrovia CA

International Classification:

A61F 2/16

US Classification:

523106, 523107, 523113, 528 25, 528 31, 528 43, 623 611, 623 656, 623 66, 524588, 524 91, 524359

Abstract:

High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.

US Patent:

7071279, Jul 4, 2006

Filed:

Apr 16, 2004

Appl. No.:

10/826498

Inventors:

Xiugao Liao - Irvine CA, US

Assignee:

STAAR Surgical Company - Monrovia CA

International Classification:

C08G 77/12

US Classification:

528 31, 528 32, 524 91, 524359, 524588

Abstract:

High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.

US Patent:

7407992, Aug 5, 2008

Filed:

Jun 30, 2006

Appl. No.:

11/480144

Inventors:

Xiugao Liao - Irvine CA, US

Assignee:

STAAR Surgical Company - Monrovia CA

International Classification:

A61F 2/16

US Classification:

523106, 523107, 523113, 528 25, 528 31, 528 35, 528 43, 623 656, 623 66, 524 91, 524359, 524588, 428405

Abstract:

High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.

US Patent:

8222360, Jul 17, 2012

Filed:

Oct 6, 2009

Appl. No.:

12/574498

Inventors:

Xiugao Liao - Irvine CA, US

Assignee:

Visiogen, Inc. - Santa Ana CA

International Classification:

C08F 30/08
C08F 118/02
A61F 2/16

US Classification:

526279, 526319, 526326

Abstract:

Some embodiments provide a copolymer comprising: an acrylate recurring unit and an optionally substituted vinylaryl recurring unit, wherein a portion of at least one of the recurring units comprises a vinyldialkylsiloxy pendant group. The copolymers may be useful as soft acrylic haptics for intraocular lenses. Some embodiments further relate to intraocular lenses having a hydrophobic soft acrylic optic and a silicone haptic, such as a dual optic accommodative lens a having hydrophobic soft acrylic anterior and posterior optic bodies and a silicone haptic. Related copolymeric composite materials as well as additional embodiments of intraocular lenses, are also described herein.