Patents Assigned to Pegavision Corporation
  • Patent number: 9995946
    Abstract: A toric lens includes a first surface, a second surface, two first sector zones, and two second sector zones. The first surface and the second surface are opposite to each other. Each of the first sector zones has a first curvature on the first surface along a radial direction of the toric lens, and the first curvature is constant along an arc direction of the toric lens. The two second sector zones are alternately arranged with the two first sector zones. Each of the second sector zones has a second curvature on the first surface along the radial direction, and the second curvature is constant along the arc direction. The first curvature is steeper than the second curvature.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: June 12, 2018
    Assignee: PEGAVISION CORPORATION
    Inventor: Colin Skudder
  • Patent number: 9925293
    Abstract: A solution for treating contact lens is provided. The solution includes about 0.01-1.0 parts by weight (pbw) of a polymer having phosphorylcholine groups, about 0.01-1 pbw of an inorganic salt, and about 100 pbw of water. The polymer has a number-average molecular weight of about 4,000 to about 1,000,000 daltons and has a structure of formula (I): wherein, in formula (I), m is a positive integer, n is zero or a positive integer, and R is C2-C12 alkyl group or C2-C12 hydroxyalkyl group. When n is a positive integer, m/n is greater than 1.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: March 27, 2018
    Assignee: PEGAVISION CORPORATION
    Inventors: Han-Yi Chang, Ya-Hsuan Liao, Shu-Chen Lu, Ya-Hui Chang, Yu-Chin Lai
  • Patent number: 9482788
    Abstract: The present disclosure provides a UV-blocking silicone hydrogel composition including a hydrophilic silicone macromer, a UV-blocking monomer, a first hydrophilic monomer, a crosslinker and a polymerization initiator. The hydrophilic silicone macromer has a general formula: V-L-S-(L?-V?)x, wherein V and V? are independently ethylenically-based polymerizable groups, L and L? are independently a covalent bond or a linkage group, S is a siloxane group having a chemical structure such as and x is 0 or 1. A silicone contact lens containing the UV-blocking silicone hydrogel composition is also provided herein.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: November 1, 2016
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Min-Tzung Yeh, Han-Yi Chang, Heng-Yi Li, Hung-Ju Chang, Che-Cheng Wu
  • Patent number: 9395560
    Abstract: A progressive multifocal ophthalmic lens includes at least three high power segments, at least three low power segments, and a plurality of progressive power segments. Shapes of the high power segments and the low power segments are sectors. The high power segments and the low power segments are disposed alternately along an arc direction of the progressive multifocal ophthalmic lens. Shapes of the progressive power segments are sectors. Two sides of each of the progressive power segments along the arc direction respectively connect one of the high power segments and one of the low power segments. The high power segments, the low power segments, and the progressive power segments form a progressive multifocal surface.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: July 19, 2016
    Assignee: Pegavision Corporation
    Inventor: Pai-Hung Chien
  • Patent number: 9133221
    Abstract: A method for manufacturing a hydrophilic silicone macromer is provided. A hydrosilylation between a Si—H bond of a polysiloxane and a C?C bond of a hydrophilic mononmer is performed by using a rhodium-containing catalyst to form the polysiloxane having a hydrophilic side chain having an amide group or a phosphoryl choline group. After performing an end-capping reaction, the hydrophilic silicone macromer is formed.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: September 15, 2015
    Assignee: PEGAVISION CORPORATION
    Inventors: Wei-Jia Ting, Heng-Yi Li, Yu-Chin Lai, Han-Yi Chang
  • Patent number: 9056879
    Abstract: A method for manufacturing a hydrophilic silicone prepolymer is disclosed. The method comprises ring-opening polymerization (ROP) of cyclosiloxanes, hydrosilylation of polysiloxanes, copolymerization, and end-capping reaction. After the above processes, the hydrophilic silicone prepolymer can be obtained.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: June 16, 2015
    Assignee: PEGAVISION CORPORATION
    Inventors: Heng-Yi Li, Wei-Jia Ting, Yu-Chin Lai, Han-Yi Chang
  • Patent number: 9046641
    Abstract: A silicone hydrogel composition is disclosed. The composition includes at least one silicone macromer, a hydroxy-functionalized silicone-containing monomer, a first hydrophibic monomer and at least one crosslinker, in which the first hydrophibic monomer is N-vinyl pyrrolidone. The silicone macromer and the hydroxy-functionalized silicone-containing monomer are mutually soluble with N-vinylpyrrolidone. Silicone hydrogel contact lenses prepared from the silicone hydrogel composition are also disclosed.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: June 2, 2015
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Min-Tzung Yeh, Heng-Yi Li, Wei-Jia Ting
  • Patent number: 8865925
    Abstract: A method for manufacturing a hydrophilic silicone macromer is provided. A hydrosilylation between a Si—H bond of a polysiloxane and a C?C bond of a hydrophilic monomer is performed by using a rhodium-containing catalyst to form the polysiloxane having a hydrophilic side chain having an amide group or a phosphoryl choline group. After performing an end-capping reaction, the hydrophilic silicone macromer is formed.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 21, 2014
    Assignee: Pegavision Corporation
    Inventors: Wei-Jia Ting, Heng-Yi Li, Yu-Chin Lai, Han-Yi Chang
  • Publication number: 20140155515
    Abstract: A silicone hydrogel composition is disclosed. The composition includes at least one silicone macromer, a hydroxy-functionalized silicone-containing monomer, a first hydrophibic monomer and at least one crosslinker, in which the first hydrophibic monomer is N-vinyl pyrrolidone. The silicone macromer and the hydroxy-functionalized silicone-containing monomer are mutually soluble with N-vinylpyrrolidone. Silicone hydrogel contact lenses prepared from the silicone hydrogel composition are also disclosed.
    Type: Application
    Filed: April 25, 2013
    Publication date: June 5, 2014
    Applicant: Pegavision Corporation
    Inventors: Yu-Chin LAI, Min-Tzung YEH, Heng-Yi LI, Wei-Jia TING
  • Publication number: 20130172592
    Abstract: A method for manufacturing a hydrophilic silicone prepolymer is disclosed. The method comprises ring-opening polymerization (ROP) of cyclosiloxanes, hydrosilylation of polysiloxanes, copolymerization, and end-capping reaction. After the above processes, the hydrophilic silicone prepolymer can be obtained.
    Type: Application
    Filed: December 18, 2012
    Publication date: July 4, 2013
    Applicant: PEGAVISION CORPORATION
    Inventor: PEGAVISION CORPORATION
  • Publication number: 20130172574
    Abstract: A method for manufacturing a hydrophilic silicone macromer is provided. A hydrosilylation between a Si—H bond of a polysiloxane and a C?C bond of a hydrophilic mononmer is performed by using a rhodium-containing catalyst to form the polysiloxane having a hydrophilic side chain having an amide group or a phosphoryl choline group. After performing an end-capping reaction, the hydrophilic silicone macromer is formed.
    Type: Application
    Filed: December 14, 2012
    Publication date: July 4, 2013
    Applicant: PEGAVISION CORPORATION
    Inventor: Pegavision Corporation
  • Patent number: 8328353
    Abstract: A segmented delta toric lens is described. The segmented delta toric lens includes an optical area, a circumference area surrounding the optical area and a segmented delta protrusion formed on the circumference area. The segmented delta protrusion is located apart from the optical area and the edge of the circumference area. The segmented delta toric lens can further include a mark to indicate a direction of the segmented delta toric lens.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: December 11, 2012
    Assignee: Pegavision Corporation
    Inventors: Colin David Skudder, Jacob Liao
  • Publication number: 20120194778
    Abstract: A segmented delta toric lens is described. The segmented delta toric lens includes an optical area, a circumference area surrounding the optical area and a segmented delta protrusion formed on the circumference area. The segmented delta protrusion is located apart from the optical area and the edge of the circumference area. The segmented delta toric lens can further include a mark to indicate a direction of the segmented delta toric lens.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 2, 2012
    Applicant: PEGAVISION CORPORATION
    Inventors: Colin David Skudder, Jacob Liao