Patents by Inventor Jang-Shing Chiou

Jang-Shing Chiou 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).

  • Patent number: 11513257
    Abstract: The invention relates to an ophthalmic product which comprises a sealed and autoclave-sterilized lens package including (1) a post-autoclave packaging solution containing a polymeric surfactant having an HLB value of from about 11 to about 16 and a Mn of from about 800 to about 20,000 Daltons and (2) a readily-usable silicone hydrogel (SiHy) contact lens immersed in the packaging solution. The readily-usable SiHy contact lens comprises the polymeric surfactant thereon providing an excellent wettability to the readily-usable SiHy contact lens directly out of the lens package, and also the leachable polymeric surfactant which is physically distributed in the polymer matrix of the SiHy contact lens and can be released to the eye of a patient for at least 7 days of daily wear and to replenish the lens surface-bound polymeric surfactant to provide sustainable wettabilities to the contact lens and the eye.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: November 29, 2022
    Assignee: Alcon Inc.
    Inventors: Ying Zheng, Jang-Shing Chiou, Jinbo Dou, Yuan Chang, Junhao Ge, Steve Yun Zhang, Li Yao, Karen Belinda Sentell, Ye Hong
  • Publication number: 20220047503
    Abstract: The present invention relates to a method to load a water insoluble phospholipid as nanoparticles to load into a hydrogel contact lens in autoclaving process during the hydrogel contact lens manufacturing process without an extra manufacturing step and without swelling the hydrogel contact lens with an organic solvent. The phospholipid nanoparticles loaded in hydrogel contact lens subsequently releases to the eye upon wearing.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 17, 2022
    Inventors: Junhao Ge, Steve Yun Zhang, Daqing Wu, Jing Cheng, Yuan Chang, Feng Jing, Jang-Shing Chiou, Stephen Raymond Perreault
  • Publication number: 20220047502
    Abstract: The present invention relates to a method to load a water insoluble phospholipid as nanoparticles to load into a hydrogel contact lens in autoclaving process during the hydrogel contact lens manufacturing process without an extra manufacturing step and without swelling the hydrogel contact lens with an organic solvent. The phospholipid nanoparticles loaded in hydrogel contact lens subsequently releases to the eye upon wearing.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 17, 2022
    Inventors: Jing Cheng, Stephen Raymond Perreault, Daqing Wu, Steve Yun Zhang, Jang-Shing Chiou
  • Publication number: 20210181379
    Abstract: The invention relates to an ophthalmic product which comprises a sealed and autoclave-sterilized lens package including (1) a post-autoclave packaging solution containing a polymeric surfactant having an HLB value of from about 11 to about 16 and a Mn of from about 800 to about 20,000 Daltons and (2) a readily-usable silicone hydrogel (SiHy) contact lens immersed in the packaging solution. The readily-usable SiHy contact lens comprises the polymeric surfactant thereon providing an excellent wettability to the readily-usable SiHy contact lens directly out of the lens package, and also the leachable polymeric surfactant which is physically distributed in the polymer matrix of the SiHy contact lens and can be released to the eye of a patient for at least 7 days of daily wear and to replenish the lens surface-bound polymeric surfactant to provide sustainable wettabilities to the contact lens and the eye.
    Type: Application
    Filed: December 15, 2020
    Publication date: June 17, 2021
    Inventors: Ying Zheng, Jang-Shing Chiou, Jinbo Dou, Yuan Chang, Junhao Ge, Steve Yun Zhang, Li Yao, Karen Belinda Sentell, Ye Hong
  • Publication number: 20140364422
    Abstract: The present invention is an aqueous pharmaceutical composition that includes an ionized therapeutic agent, an ionic component and guar gum. The guar gum is present in the composition a concentration sufficient to limit interactions between the ionized therapeutic agent and the ionic component thereby imparting stability to the composition. The composition is preferably at or near physiologic pH. The aqueous pharmaceutical composition has been found particularly useful as an aqueous ophthalmic, otic or nasal composition. The pharmaceutical composition, due to its characteristics, is particularly suitable as an ophthalmic composition.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 11, 2014
    Inventors: David L. Meadows, Howard Allen Ketelson, Jang-Shing Chiou, James W. Davis
  • Publication number: 20080093247
    Abstract: Packaging materials substantially lacking adsorptive and absorptive properties for 2-pyrrolidone derivatives are provided. The packaged products described herein provide for retention of the 2-pyrrolidone derivative within the formulation thereby maintaining the integrity of such formulations. Packaged products are useful for ophthalmic, otic, and nasal applications. Ophthalmic application includes therapeutic uses and contact lens care uses.
    Type: Application
    Filed: October 24, 2007
    Publication date: April 24, 2008
    Applicant: Alcon Manufacturing Ltd.
    Inventors: Wesley Wehsin Han, Masood A. Chowhan, Jang-Shing Chiou, L. Wayne Schneider, Bhagwati P. Kabra