Patents by Inventor Zachary D. Pritchard

Zachary D. Pritchard 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: 20250244303
    Abstract: A method for detecting plant evapotranspiration includes: detecting, by an evapotranspiration (ET) sensor arranged in a canopy of a plant, a speed of air flowing through the canopy of plant, a temperature of the air and a relative humidity of the air over a plurality of time intervals; calculating, by a processor, an estimated mass the air using at least one of a convective mass transfer (CMT) model, a mass balance (MB) model, or an empirical (EM) model; determining, by the processor, a plant scaling coefficient; integrating, by the processor, the estimated mass flux of the air over the plurality of time intervals to obtain a running sum; and multiplying, by the processor, the running sum by the plant scaling coefficient to determine an estimated evapotranspiration of the plant.
    Type: Application
    Filed: March 23, 2023
    Publication date: July 31, 2025
    Inventors: Mark A. Burns, Wen-Chi Lin, Brian N. Johnson, Zachary D. Pritchard, Matthew Jenkins, David Block, Konrad Miller, Shayla Nikzad, Autumn Mannsfeld
  • Patent number: 12173095
    Abstract: Provided herein is technology relating to polymerization and producing polymers and particularly, but not exclusively, to methods, systems, and compositions for producing articles using three-dimensional printing and for improving control of polymerization using a polymerization photoinhibitor having fast back reaction kinetics such as hexaarylbiimidazole compounds and bridged hexaarylbiimidazole compounds.
    Type: Grant
    Filed: November 13, 2023
    Date of Patent: December 24, 2024
    Assignee: The Regents of the University of Michigan
    Inventors: Timothy F. Scott, Harry van der Laan, Megan A. Cole, Mark A. Burns, Martin P. De Beer, Zachary D. Pritchard, Avi Bregman
  • Publication number: 20240076421
    Abstract: Provided herein is technology relating to polymerization and producing polymers and particularly, but not exclusively, to methods, systems, and compositions for producing articles using three-dimensional printing and for improving control of polymerization using a polymerization photoinhibitor having fast back reaction kinetics such as hexaarylbiimidazole compounds and bridged hexaarylbiimidazole compounds.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 7, 2024
    Inventors: Timothy F. Scott, Harry van der Laan, Megan A. Cole, Mark A. Burns, Martin P. De Beer, Zachary D. Pritchard, Avi Bregman
  • Patent number: 11851511
    Abstract: Provided herein is technology relating to polymerization and producing polymers and particularly, but not exclusively, to methods, systems, and compositions for producing articles using three-dimensional printing and for improving control of polymerization using a polymerization photoinhibitor having fast back reaction kinetics such as hexaarylbiimidazole compounds and bridged hexaarylbiimidazole compounds.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: December 26, 2023
    Assignee: The Regents of the University of Michigan
    Inventors: Timothy F. Scott, Harry van der Laan, Megan A. Cole, Mark A. Burns, Martin P. De Beer, Zachary D. Pritchard, Avi Bregman
  • Publication number: 20220106417
    Abstract: Provided herein is technology relating to polymerization and producing polymers and particularly, but not exclusively, to methods, systems, and compositions for producing articles using three-dimensional printing and for improving control of polymerization using a polymerization photoinhibitor having fast back reaction kinetics such as hexaarylbiimidazole compounds and bridged hexaarylbiimidazole compounds.
    Type: Application
    Filed: October 13, 2021
    Publication date: April 7, 2022
    Inventors: Timothy F. Scott, Harry van der Laan, Megan A. Cole, Mark A. Burns, Martin P. De Beer, Zachary D. Pritchard, Avi Bregman
  • Patent number: 11174326
    Abstract: Provided herein is technology relating to polymerization and producing polymers and particularly, but not exclusively, to methods, systems, and compositions for producing articles using three-dimensional printing and for improving control of polymerization using a polymerization photoinhibitor having fast back reaction kinetics such as hexaarylbiimidazole compounds and bridged hexaarylbiimidazole compounds.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: November 16, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Timothy F. Scott, Harry van der Laan, Megan A. Cole, Mark A. Burns, Martin P. De Beer, Zachary D. Pritchard, Avi Bregman
  • Publication number: 20210115167
    Abstract: Provided herein is technology relating to polymerization and producing polymers and particularly, but not exclusively, to methods, systems, and compositions for producing articles using three-dimensional printing and for improving control of polymerization using a polymerization photoinhibitor having fast back reaction kinetics such as hexaarylbiimidazole compounds and bridged hexaarylbiimidazole compounds.
    Type: Application
    Filed: February 19, 2019
    Publication date: April 22, 2021
    Inventors: Timothy F. Scott, Harry van der Laan, Megan A. Cole, Mark A. Burns, Martin P. De Beer, Zachary D. Pritchard, Avi Bregman