Patents by Inventor Shilpa Naresh Raja

Shilpa Naresh Raja 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).

  • Bioreachable chiral dopants for liquid crystal applications
    Patent number: 11814563
    Abstract: The disclosure discusses chiral dopants for liquid-crystalline materials. Chiral dopants can be bioreachable compounds, i.e. compounds produced from microbes through fermentation. Chiral dopants can also include bioreachable materials that are further modified by chemical synthetic steps. Chiral dopants as discussed herein can include biomolecules such as glycyrrhetinic acid (1), S-naringenin (2), shikimic acid (3), alpha-phellandrene (4), betulin (5), malic acid (6), valencene (7), or nootkatone (8), and any stereoisomers or chemically modified derivatives thereof. The disclosure further shows optical properties of such compounds in a liquid-crystalline material.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: November 14, 2023
    Assignees: Zymergen Inc., Kent State University
    Inventors: Adam Safir, Shilpa Naresh Raja, Arjan Zoombelt, Robert J. Twieg, Pawan Nepal, Ashani Wedige-Fernando, Peter Palffy-Muhoray
  • FORMULATIONS OF BIOREACHABLE DOPANTS FOR LIQUID CRYSTALS
    Publication number: 20230203378
    Abstract: The present disclosure relates to formulations having one, two, or more chiral dopants, as well as materials and methods including such formulations. In particular instances, the formulation can include an achiral host, such as a nematic substance.
    Type: Application
    Filed: June 4, 2021
    Publication date: June 29, 2023
    Inventors: Shilpa Naresh Raja, Arjan Zoombelt, Adam Safir, Peter Palffy-Muhoray, Robert J. Twieg, Hiroshi Yokoyama, Tianyi Guo, Pawan Nepal
  • BIOREACHABLE CHIRAL DOPANTS FOR LIQUID CRYSTAL APPLICATIONS
    Publication number: 20220025267
    Abstract: The disclosure discusses chiral dopants for liquid-crystalline materials. Chiral dopants can be bioreachable compounds, i.e. compounds produced from microbes through fermentation. Chiral dopants can also include bioreachable materials that are further modified by chemical synthetic steps. Chiral dopants as discussed herein can include biomolecules such as glycyrrhetinic acid (1), S-narigenin (2), shikimic acid (3), alpha-phellandrene (4), betulin (5), malic acid (6), valencene (7), or nootkatone (8), and any stereoisomers or chemically modified derivatives thereof. The disclosure further shows optical properties of such compounds in a liquid-crystalline material.
    Type: Application
    Filed: December 6, 2019
    Publication date: January 27, 2022
    Inventors: Adam Safir, Shilpa Naresh Raja, Arjan Zoombelt, Robert J. Twieg, Pawan Nepal, Ashani Wedige-Fernando, Peter Palffy-Muhoray
  • USE OF HETEROCYCLIC AMINES CONTAINING PRIMARY OR SECONDARY AMINES AS A POLYMER CATALYST OR HARDENER
    Publication number: 20210261721
    Abstract: An epoxy resin composition comprises about 70 wt % to about 95 wt % by weight of the composition of an epoxy component; and a curing component comprising about 5 wt % to about 30 wt % by weight of the composition, wherein the curing component is includes an imidazole; wherein the epoxy component and the curing component react together at a temperature of about 100 C to about 130 C to form a substantially cured reaction product in about 10 minutes or less and the cured product shows high tensile and flexural strength.
    Type: Application
    Filed: June 14, 2019
    Publication date: August 26, 2021
    Applicant: Zymergen Inc.
    Inventors: Szymon Kosinski, Stephen Lo, Timothy Mauldin, Shilpa Naresh Raja, Nicole G. Ricapito, Adam Safir