Patents by Inventor Nathan Eckert

Nathan Eckert 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).

  • NOVEL POLYURETHANE CURATIVES
    Publication number: 20190352481
    Abstract: A class of alkanol amine ligands reacted with bismuth carboxylates lends unique curability properties to isocyanate and polyols for production of polyurethane for CASE applications, including growing demand for polyurethane spray-foam. The amino-alcohol ligand, when associated with bismuth neodecanoate, offers improved moisture and solvent resistance during B-side (polyol) storage, cure rates analogous to tin-based curatives, and overall good final physical properties of the cured polyurethane.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Inventors: Tod C. Duvall, Jeffrey Sullivan, Nathan Eckert
  • Polyurethane curatives
    Patent number: 10414891
    Abstract: A class of alkanol amine ligands reacted with bismuth carboxylates lends unique curability properties to isocyanate and polyols for production of polyurethane for CASE applications, including growing demand for polyurethane spray-foam. The amino-alcohol ligand, when associated with bismuth neodecanoate, offers improved moisture and solvent resistance during B-side (polyol) storage, cure rates analogous to tin-based curatives, and overall good final physical properties of the cured polyurethane.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: September 17, 2019
    Assignee: The Shepherd Chemical Company
    Inventors: Tod C. Duvall, Jeffrey Sullivan, Nathan Eckert
  • High-temperature brushless DC motor controller
    Patent number: 9654035
    Abstract: A motor control system for deployment in high temperature environments includes a controller; a first half-bridge circuit that includes a first high-side switching element and a first low-side switching element; a second half-bridge circuit that includes a second high-side switching element and a second low-side switching element; and a third half-bridge circuit that includes a third high-side switching element and a third; low-side switching element. The motor controller is arranged to apply a pulse width modulation (PWM) scheme to switch the first half-bridge circuit, second half-bridge circuit, and third half-bridge circuit to power a motor.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: May 16, 2017
    Assignee: Sandia Corporation
    Inventors: Crzegorz Cieslewski, Scott C. Lindblom, Frank J. Maldonado, Michael Nathan Eckert
  • NOVEL POLYURETHANE CURATIVES
    Publication number: 20160200888
    Abstract: A class of alkanol amine ligands reacted with bismuth carboxylates lends unique curability properties to isocyanate and polyols for production of polyurethane for CASE applications, including growing demand for polyurethane spray-foam. The amino-alcohol ligand, when associated with bismuth neodecanoate, offers improved moisture and solvent resistance during B-side (polyol) storage, cure rates analogous to tin-based curatives, and overall good final physical properties of the cured polyurethane.
    Type: Application
    Filed: December 10, 2015
    Publication date: July 14, 2016
    Inventors: Tod C. Duvall, Jeffrey Sullivan, Nathan Eckert