Patents by Inventor Feng-Yang Shih

Feng-Yang Shih 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).

  • Publication number: 20240352170
    Abstract: A rigid gas permeable prepolymer comprising a reaction product of (a) a rigid gas permeable-forming prepolymer comprising (i) monomeric units derived from a bulky siloxane monomer containing an ethylenically unsaturated reactive end group, and (ii) monomeric units derived from a hydrophilic monomer having one or more reactive functionalities and an ethylenically unsaturated reactive end group, and (b) a monomer having a reactive functionality complementary to one of the one or more reactive functionalities of the hydrophilic monomer and a polymerizable ethylenically unsaturated reactive end group complementary to an ethylenically unsaturated reactive group of a rigid gas permeable contact lens-forming comonomer. Rigid gas permeable contact lenses formed from the rigid gas permeable prepolymers are also disclosed.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 24, 2024
    Inventors: Mohammad Vatankhah Varnosfaderani, Feng-Yang Shih, Mark R. Mis, Alok Kumar Awasthi, Emily Abrams Gabriel, Kenneth M. Harty, Peter J. Tinios, Marianne Yarmey
  • Publication number: 20240302569
    Abstract: A method for preparing a contact lens containing an ultraviolet (UV) blocker is disclosed. The method involves (a) polymerizing a monomeric mixture comprising (i) one or more contact lens-forming comonomers, and (ii) one or more UV blockers comprising a phenolic group having a protected hydroxyl moiety and one or more ethylenically unsaturated reactive groups to obtain a polymerization product comprising the one or more UV blockers comprising a phenolic group having a protected hydroxyl moiety, and (b) deprotecting the protected hydroxyl moiety of the one or more UV blockers of the polymerization product.
    Type: Application
    Filed: January 25, 2024
    Publication date: September 12, 2024
    Inventors: Feng-Yang Shih, Mohammad Vatankhah Varnosfaderani, Alok Kumar Awasthi
  • Publication number: 20240240047
    Abstract: A biomedical device having a surface coating includes a bulk material having one or more biomedical device surface reactive functional groups and/or one or more biomedical device surface protected reactive functional groups and a surface coating. The surface coating is derived from a block copolymer including (a) monomeric units derived from an ethylenically unsaturated containing monomer having ring-opening reactive functionalities or nucleofugic functionalities that are complementary to the one or more biomedical device surface reactive functional groups and the one or more biomedical device surface protected reactive functional groups, and (b) monomeric units derived from an ethylenically unsaturated-containing hydrophilic monomer.
    Type: Application
    Filed: December 14, 2023
    Publication date: July 18, 2024
    Inventors: Mohammad Vatankhah Varnosfaderani, Mark R. Mis, Feng-Yang Shih, Jade J. Russell, Alok Kumar Awasthi
  • Publication number: 20230266505
    Abstract: An ophthalmic device which is a polymerization product of a monomeric mixture includes (a) one or more cationic initiators comprising one or more polymerizable groups; and (b) one or more alkyl-substituted oxazolines.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 24, 2023
    Inventors: Feng-Yang Shih, Mohammad Vatankhah Varnosfaderani, Alok Kumar Awasthi
  • Publication number: 20230244000
    Abstract: A multifunctional crosslinking agent includes one or more repeating units of a siloxanyl group or a silyl-alkyl-siloxanyl group, and at least two ethylenically unsaturated reactive end groups. One of the at least two ethylenically unsaturated reactive end groups is a (meth)acrylate-containing reactive end group or an acrylamide-containing reactive end group and the other one is an allyl-containing reactive end group or a vinyl-containing reactive end group.
    Type: Application
    Filed: January 25, 2023
    Publication date: August 3, 2023
    Inventors: Alok Kumar Awasthi, Feng-Yang Shih, Mohammad Vatankhah Varnosfaderani, James Anthony DiBella, JR., Mark R. Mis, Jade J. Russell
  • Publication number: 20230047871
    Abstract: A biomedical device is disclosed. The biomedical device includes a polymerization product of a biomedical device-forming mixture containing (a) one or more grafted glycosaminoglycan polymers including a glycosaminoglycan having a polymer backbone and one or more side chains comprising an ethylenically unsaturated reactive-containing residue grafted onto the polymer backbone, and (b) one or more non-silicone biomedical device-forming monomers.
    Type: Application
    Filed: May 31, 2022
    Publication date: February 16, 2023
    Inventors: James Anthony DiBella, JR., Feng-Yang Shih, Mark R. Mis, Lindsey Cullen, Sandra Taft, Alok Kumar Awasthi