Patents by Inventor Chad Ulven

Chad Ulven 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: 20230405936
    Abstract: Commercial additive manufacturing with continuous reinforcement produces parts with low fiber volume fraction and limited printing parameters. Mechanical properties of 3D printed products are improved with high fiber volume fraction. This technology solves, at least, the problem of undetected print fails of currently available technology. Applicator engineering solves the issue of poor interlaminar adhesion. The incorporation of elevated temperature control and real-time monitoring helps solve dimensional errors that happen due to postcuring. This technology mitigates and prevents print failures which will save time and material and improve printing efficiency. Ultrasonic vibration reduces the void in the print by better dispersion of resin.
    Type: Application
    Filed: June 21, 2023
    Publication date: December 21, 2023
    Inventors: Chad Ulven, MD Atikur Rahman, Md. Zahirul Islam, Luke R. Gibbon
  • Publication number: 20220063183
    Abstract: Suspending fibers within a substantially similar direction within flow field allows for an even dispersion of fibers in a manufactured composite. The flow field can be established within a resin tank so as to control orientation of the fibers. An advantage of this approach is that fiber orientation can be changed layer by layer during printing. No matter where the reinforcements need to be, the fibers can be aligned on the fly to accommodate. 3D prints can made stronger for a very wide range of objects and opportunities.
    Type: Application
    Filed: July 1, 2021
    Publication date: March 3, 2022
    Inventors: Patrick Simpson, Michael Holthaus, Chad Ulven
  • Patent number: 10568743
    Abstract: In some exemplary embodiments, an ankle replacement prosthesis includes a tibial component which provides a convex bearing surface, and a talar component which provides a concave bearing surface configured to interface with the convex bearing surface of the tibial component to provide a joint of the ankle replacement prosthesis. The tibial component is configured to be attached to a patient's tibia and the talar component is configured to be attached to the patient's talus.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: February 25, 2020
    Assignee: NDSU Research Foundation
    Inventors: Jared S. Aelony, Fardad Azarmi, Chad A. Ulven
  • Patent number: 9964532
    Abstract: A biodegradable soil sensor, a biodegradable soil sensing system and method for obtaining soil information is provided. The biodegradable sensor may include one or more electrically conductive bioinert traces and a biodegradable substrate having a printed circuit of the one or more electrically conductive bioinert traces. A biodegradable antenna may be formed by at least one of the one or more electrically conductive bioinert traces. A sensor may be connected to the one or more electrically conductive bioinert traces. The sensor may also include a biodegradable encapsulation layer housing the biodegradable substrate and the electrically conductive bioinert traces.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: May 8, 2018
    Assignee: NDSU Research Foundation
    Inventors: Cherish Bauer-Reich, Justin Hoey, Robert Sailer, Nathan Schneck, Chad Ulven
  • Publication number: 20170045487
    Abstract: A biodegradable soil sensor, a biodegradable soil sensing system and method for obtaining soil information is provided. The biodegradable sensor may include one or more electrically conductive bioinert traces and a biodegradable substrate having a printed circuit of the one or more electrically conductive bioinert traces. A biodegradable antenna may be formed by at least one of the one or more electrically conductive bioinert traces. A sensor may be connected to the one or more electrically conductive bioinert traces. The sensor may also include a biodegradable encapsulation layer housing the biodegradable substrate and the electrically conductive bioinert traces.
    Type: Application
    Filed: January 15, 2014
    Publication date: February 16, 2017
    Inventors: Cherish Bauer-Reich, Justin Hoey, Robert Sailer, Nathan Schneck, Chad Ulven
  • Publication number: 20160289447
    Abstract: The invention provides structural biocomposites comprising cellulose-based bast natural fibers, glass fibers, or mixtures thereof, and polyurethanes. The polyurethanes are synthesized from the reaction of polyfunctional bio-based polyols with polyisocyanates. The resultant polyurethanes have higher moduli, hardness, and Tg compared to other bio- and petroleum-based polyols. Methods of making the structural biocomposites are also disclosed.
    Type: Application
    Filed: November 18, 2014
    Publication date: October 6, 2016
    Inventors: Dean C. WEBSTER, Thomas J. NELSON, Nassibeh HOSSEINI, Chad A. ULVEN
  • Publication number: 20160074169
    Abstract: In some exemplary embodiments, an ankle replacement prosthesis includes a tibial component which provides a convex bearing surface, and a talar component which provides a concave bearing surface configured to interface with the convex bearing surface of the tibial component to provide a joint of the ankle replacement prosthesis. The tibial component is configured to be attached to a patient's tibia and the talar component is configured to be attached to the patient's talus.
    Type: Application
    Filed: May 1, 2014
    Publication date: March 17, 2016
    Applicant: NDSU RESEARCH FOUNDATION
    Inventors: Jared S. Aelony, Fardad Azarmi, Chad A. Ulven
  • Patent number: 9114268
    Abstract: A composite diving board which has a sandwich structure of an upper and lower composite laminate surrounding a central core. The laminates comprise a fibrous material comprising fibers of carbon, graphite, aramid, oriented high molecular weight polyethylene, oriented high molecular weight polypropylene, and/or boron. The core has a decrease in thickness along the longitudinal axis of the board from a fulcrum region toward the tip end of the board.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: August 25, 2015
    Assignee: Duraflex International Corp.
    Inventors: William B. Isaacson, Chad A. Ulven
  • Publication number: 20120083390
    Abstract: A composite diving board comprising a composite laminate of fibers in a matrix.
    Type: Application
    Filed: December 13, 2011
    Publication date: April 5, 2012
    Applicant: DURAFLEX INTERNATIONAL CORP.
    Inventors: William B. Isaacson, Chad A. Ulven
  • Patent number: 8075452
    Abstract: A composite diving board comprising a composite laminate of fibers in a matrix.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: December 13, 2011
    Assignee: Duraflex International Corp.
    Inventors: William B. Isaacson, Chad A. Ulven
  • Publication number: 20110059826
    Abstract: A composite diving board comprising a composite laminate of fibers in a matrix.
    Type: Application
    Filed: September 3, 2010
    Publication date: March 10, 2011
    Applicant: DURAFLEX INTERNATIONAL CORP.
    Inventors: William B. Isaacson, Chad A. Ulven