Patents by Inventor Wenyan Yan

Wenyan Yan 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).

  • Modification of surfaces of polymeric articles by Michael addition reaction
    Publication number: 20080003259
    Abstract: A medical device having an increased surface hydrophilicity comprises a coating polymer comprising units of a polymerizable hydrophilic compound that is attached to the surface of the medical device via the Michael addition reaction. The coating polymer can be applied to a medical device comprising a hydrogel material. The attachment of the coating polymer may be enhanced by increasing the population of the medical-device surface functional groups before contacting the medical device with the coating polymer.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 3, 2008
    Inventors: Joseph C. Salamone, Yu-Chin Lai, Weihong Lang, Wenyan Yan
  • Copolymer and Medical Device with the Copolymer
    Publication number: 20070264509
    Abstract: A copolymer comprising monomeric units of one or more polymerizable polyalcohols selected from the groups consisting of erythritol, xylitol, sorbitol and mixtures thereof; and one or more polymerizable carboxylic acids.
    Type: Application
    Filed: February 20, 2007
    Publication date: November 15, 2007
    Inventors: Yu-Chin Lai, Weihong Lang, Wenyan Yan
  • Polymers comprising polyhydric alcohols, medical devices modified with same, and method of making
    Publication number: 20070264503
    Abstract: A medical device having an increased surface hydrophilicity comprises a coating polymer comprising units of a polymerizable hydrophilic compound, such as a polymerizable polyhydric alcohol. The coating polymer can be applied to a medical device comprising a hydrogel material. The medical device can have a reduced dehydration rate compared to a device that is devoid of such a coating polymer and/or provide increased comfort to a user.
    Type: Application
    Filed: May 11, 2006
    Publication date: November 15, 2007
    Inventors: Yu-Chin Lai, Weihong Lang, Wenyan Yan
  • Surface modification of functional group-containing intraocular lenses
    Patent number: 7083646
    Abstract: Surface modified medical devices such as intraocular lens implants formed from one or more functional group-containing materials using reactive, hydrophilic polymers for the purpose of reducing or eliminating lens epithelial cell growth thereon, reducing or eliminating silicone oil absorption upon subsequent surgical exposure and/or reducing or eliminating implantation inserter friction is provided herein. Additionally, a method of making and using surface modified intraocular lens implants is provided.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: August 1, 2006
    Assignee: Bausch & Lomb Incorporated
    Inventors: Paul L. Valint, Jr., Joseph A. McGee, Wenyan Yan, Joseph C. Salamone, Daniel M. Ammon, Jr., Jay F. Kunzler
  • Compositions for cleaning and treating surgical devices
    Publication number: 20050277562
    Abstract: Compositions and methods for cleaning surgical devices employing one or more phosphonates, one or more surfactants and one or more buffering agents in amounts effective to reduce elemental deposits on surgical devices are disclosed. Additionally, methods of making and using surgical device cleaning solutions containing one or more of the subject compositions are also disclosed.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 15, 2005
    Inventors: Erning Xia, Horngyih Huang, O. Lever, Wenyan Yan
  • Surface modification of functional group-containing intraocular lenses
    Publication number: 20040006386
    Abstract: Surface modified medical devices such as intraocular lens implants formed from one or more functional group-containing materials using reactive, hydrophilic polymers for the purpose of reducing or eliminating lens epithelial cell growth thereon, reducing or eliminating silicone oil absorption upon subsequent surgical exposure and/or reducing or eliminating implantation inserter friction is provided herein. Additionally, a method of making and using surface modified intraocular lens implants is provided.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 8, 2004
    Inventors: Paul L. Valint, Joseph A. McGee, Wenyan Yan, Joseph C. Salamone, Daniel M. Ammon, Jay F. Kunzler