Patents by Inventor Asiri Ediriwickrema

Asiri Ediriwickrema 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: 11918695
    Abstract: Core-shell particles have a hydrophobic core and a shell formed of o containing hyperbranched polymers (HP). The HP can be covalently bound to the one or more materials that form the core or coated thereon. The HP coating can be modified to adjust the properties of the particles. For example, unmodified HP coatings resist non-specific protein absorption. Alternatively, the hydroxyl groups on the HP coating can be chemically modified to form functional groups that react with functional groups on tissue to adhere the particles to the tissue, cells, or extracellular materials, such as proteins. Such functional groups include, but not limited to, aldehydes, amines, and O-substituted oximes. Topical formulation for application to the skin contain these HP coated nanoparticles. In some embodiments, the particles include cosmetic, therapeutic, diagnostic, nutraceutical, and/or prophylactic agents, such as those used as sunblock compositions.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: March 5, 2024
    Assignee: YALE UNIVERSITY
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman, Michael Girardi
  • Patent number: 11896686
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: February 13, 2024
    Assignee: YALE UNIVERSITY
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Patent number: 11826438
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: November 28, 2023
    Assignee: YALE UNIVERSITY
    Inventors: Yang Deng, Asiri Ediriwickrema, W. Mark Saltzman
  • Publication number: 20220323313
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Application
    Filed: June 16, 2022
    Publication date: October 13, 2022
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Patent number: 11364182
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: June 21, 2022
    Assignee: YALE UNIVERSITY
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Publication number: 20210030634
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Application
    Filed: May 22, 2020
    Publication date: February 4, 2021
    Inventors: Yang Deng, Asiri Ediriwickrema, W. Mark Saltzman
  • Patent number: 10758459
    Abstract: Core-shell particles have a hydrophobic core and a shell formed of or containing hyperbranched polyglycerol (HPG). The HPG can be covalently bound to the one or more materials that form the core or coated thereon. The HPG coating can be modified to adjust the properties of the particles. For example, unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption. Alternatively, the hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups on tissue or otherwise interact with tissue to adhere the particles to the tissue, cells, or extracellular materials, such as proteins. Such functional groups include, but not limited to, aldehydes, amines, and O-substituted oximes. Topical formulation for application to the skin contain these HPG coated nanoparticles.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: September 1, 2020
    Assignee: YALE UNIVERSITY
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Patent number: 10660828
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: May 26, 2020
    Assignee: Yale University
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Publication number: 20200000687
    Abstract: Core-shell particles have a hydrophobic core and a shell formed of or containing hyperbranched polyglycerol (HPG). The HPG can be covalently bound to the one or more materials that form the core or coated thereon. The HPG coating can be modified to adjust the properties of the particles. For example, unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption. Alternatively, the hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups on tissue or otherwise interact with tissue to adhere the particles to the tissue, cells, or extracellular materials, such as proteins. Such functional groups include, but not limited to, aldehydes, amines, and O-substituted oximes. Topical formulation for application to the skin contain these HPG coated nanoparticles.
    Type: Application
    Filed: April 9, 2019
    Publication date: January 2, 2020
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Publication number: 20190380921
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Application
    Filed: March 25, 2019
    Publication date: December 19, 2019
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Patent number: 10272019
    Abstract: Core-shell particles have a hydrophobic core and a shell formed of or containing hyperbranched polyglycerol (HPG). The HPG can be covalently bound to the one or more materials that form the core or coated thereon. The HPG coating can be modified to adjust the properties of the particles. For example, unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption. Alternatively, the hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups on tissue or otherwise interact with tissue to adhere the particles to the tissue, cells, or extracellular materials, such as proteins. Such functional groups include, but not limited to, aldehydes, amines, and O-substituted oximes. Topical formulation for application to the skin contain these HPG coated nanoparticles.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: April 30, 2019
    Assignee: Yale University
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Patent number: 10238581
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: March 26, 2019
    Assignee: Yale University
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Publication number: 20180256480
    Abstract: Core-shell particles have a hydrophobic core and a shell formed of o containing hyperbranched polymers (HP). The HP can be covalently bound to the one or more materials that form the core or coated thereon. The HP coating can be modified to adjust the properties of the particles. For example, unmodified HP coatings resist non-specific protein absorption. Alternatively, the hydroxyl groups on the HP coating can be chemically modified to form functional groups that react with functional groups on tissue to adhere the particles to the tissue, cells, or extracellular materials, such as proteins. Such functional groups include, but not limited to, aldehydes, amines, and O-substituted oximes. Topical formulation for application to the skin contain these HP coated nanoparticles. In some embodiments, the particles include cosmetic, therapeutic, diagnostic, nutraceutical, and/or prophylactic agents, such as those used as sunblock compositions.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 13, 2018
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman, Michael Girardi
  • Publication number: 20180177688
    Abstract: Core-shell particles have a hydrophobic core and a shell formed of or containing hyperbranched polyglycerol (HPG). The HPG can be covalently bound to the one or more materials that form the core or coated thereon. The HPG coating can be modified to adjust the properties of the particles. For example, unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption. Alternatively, the hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups on tissue or otherwise interact with tissue to adhere the particles to the tissue, cells, or extracellular materials, such as proteins. Such functional groups include, but not limited to, aldehydes, amines, and O-substituted oximes. Topical formulation for application to the skin contain these HPG coated nanoparticles.
    Type: Application
    Filed: May 11, 2015
    Publication date: June 28, 2018
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Publication number: 20170266119
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Application
    Filed: May 11, 2015
    Publication date: September 21, 2017
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman
  • Publication number: 20170000737
    Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.
    Type: Application
    Filed: September 19, 2016
    Publication date: January 5, 2017
    Inventors: Yang Deng, Asiri Ediriwickrema, William M. Saltzman