Patents by Inventor Joshua Bartels

Joshua Bartels 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: 20250011562
    Abstract: The present disclosure is directed to methods of forming polyamic acid, polyamic acid metal salt, and polyimide gels under aqueous conditions, the methods utilizing water-soluble carbonate or bicarbonate salts. These gels may be converted to aerogels or xerogels, which may further be converted to carbon aerogels or xerogels. Such carbon aerogels or xerogels have the same physical properties as carbon aerogels or xerogels prepared from polyimide aerogels obtained according to conventional methods, i.e., organic solvent-based methods.
    Type: Application
    Filed: September 12, 2024
    Publication date: January 9, 2025
    Applicant: Aspen Aerogels, Inc.
    Inventors: Nicholas Leventis, Redouane Begag, Rushi Soni, Joshua Bartels, Hooman Yaghoobnejad Asl
  • Publication number: 20240349404
    Abstract: Heating and processing a polymeric material is achieved using a microwave absorbing structure that defines a processing chamber to receive the polymeric material (e.g., one or more precursors to form a polymer). A microwave radiation source directs microwave radiation to the microwave absorbing structure, which absorbs the radiation and can process the material.
    Type: Application
    Filed: June 26, 2024
    Publication date: October 17, 2024
    Applicant: Aspen Aerogels, Inc.
    Inventors: Nicholas Leventis, Sean Depner, Joshua Bartels
  • Publication number: 20230369621
    Abstract: This disclosure relates to polymer electrolyte membranes, and in particular, to a composite membrane having at least two reinforcing layers comprising a microporous polymer structure and a surprisingly high resistance to piercing. This disclosure also relates to composite membrane-assemblies and electrochemical devices comprising the composite membranes of the disclosure, and to methods of manufacture of the composite membranes.
    Type: Application
    Filed: August 18, 2021
    Publication date: November 16, 2023
    Inventors: Joshua Bartels, Navya Jagarlamudi