Patents by Inventor Jana Williams

Jana Williams 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).

  • Additive manufacturing of aromatic thermoplastics from photocurable precursor salts
    Patent number: 12252619
    Abstract: In various aspects, a polymer resin is provided for vat or ultraviolet-assisted direct ink writing (UV-DIW) photopolymerization. The resin can include a polyamic acid salt formed from the addition of a photocrosslinkable amine to a polyamic acid. The resin can include a photoinitiator suitable for initiating crosslinking of the photocrosslinkable amine when exposed to a light source of a suitable wavelength and intensity. The polyamic acid can be formed, for instance, by the addition of a diamine to a suitable dianhydride. Methods of additive manufacturing using the resins are also provided.
    Type: Grant
    Filed: March 30, 2019
    Date of Patent: March 18, 2025
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Daniel Rau, Jana Herzberger, Timothy Long, Christopher Williams
  • Hand truck extension
    Patent number: D440372
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: April 10, 2001
    Inventor: Jana Williams