Patents by Inventor Stuart Damon Hellring

Stuart Damon Hellring 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: 20250011604
    Abstract: A multi-layer coating system includes: a first coating layer formed from a first coating composition including: a film forming resin; and a fluorescent and/or phosphorescent pigment that: (1) emits radiation at an emission wavelength in the range of from 400-1200 nanometers when excited by ultraviolet and/or visible radiation corresponding to an excitation wavelength of the fluorescent and/or phosphorescent pigment; and/or (2) emits radiation at an emission wavelength in the range of from 600-2500 nanometers when excited by visible and/or near infrared radiation corresponding to an excitation wavelength of the fluorescent and/or phosphorescent pigment; and a second coating layer disposed over at least a portion of the first coating layer, which is formed from a second coating composition including: a film forming resin; and a pigment that blocks radiation corresponding to the excitation and/or emission wavelength of the fluorescent and/or phosphorescent pigment in the first coating layer.
    Type: Application
    Filed: November 1, 2022
    Publication date: January 9, 2025
    Applicant: PRC-Desoto International, Inc.
    Inventors: Matthew Robert Davis, Gordon Lowry Post, Tejveen Kaur Gill, Stuart Damon Hellring, Erinn M. Klass, Justin Jonathan Martin, Michael Andrew Zalich
  • Patent number: 10934411
    Abstract: Curable compositions containing a compound comprising a conjugated diene group and a 1,1-di-activated vinyl compound are described. The curable compositions can cure by pericyclic reaction mechanisms.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: March 2, 2021
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Jonathan Thomas Martz, Michael Andrew Zalich, Aditya Lakshmi Narasimha Raju Gottumukkala, Stuart Damon Hellring, Ronnie Albertus Johannes Peskens
  • Publication number: 20180094115
    Abstract: Curable compositions containing a compound comprising a conjugated diene group and a 1,1-di-activated vinyl compound are described. The curable compositions can cure by pericyclic reaction mechanisms.
    Type: Application
    Filed: October 2, 2017
    Publication date: April 5, 2018
    Inventors: Jonathan Thomas Martz, Michael Andrew Zalich, Aditya Lakshmi Narasimha Raju Gottumukkala, Stuart Damon Hellring, Ronnie Albertus Johannes Peskens
  • Patent number: 6018087
    Abstract: The present invention relates to a method of preparing 2,6-dimethylnaphthalene from a feed stream that contains hydrocarbons which contain dimethylnaphthalene isomers. The method includes the following steps:I. distillation and concentration of the dimethylnaphthalene isomers from the feed stream, to form a dimethylnaphthalene fraction,II. isomerization of the dimethylnaphthalene fraction to enrich the dimethylnaphthalene fraction in 2,6-dimethylnaphthalene, to form a 2,6-enriched dimethylnaphthalene fraction,III. purification of 2,6-dimethylnaphthalene from the 2,6-enriched dimethylnaphthalene fraction,wherein step II is conducted in the presence of a catalyst composition containing a synthetic zeolite characterized by an X-ray diffraction pattern including interplanar d-spacing (.ANG.)12.36.+-.10.411.03.+-.0.28.83.+-.10.146.18.+-.0.126.00.+-.0.104.06.+-.0.073.91.+-.0.013.42.+-.0.06,wherein the purification includes crystallization under pressure.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: January 25, 2000
    Assignees: Kabushiki Kaisha Kobe Seiko Sho., Mobil Oil Corporation
    Inventors: Masahiro Motoyuki, Koji Yamamoto, Shingo Yoshida, Seiichi Yamamoto, Ajit Vishwanath Sapre, John Paul Mc Williams, Susan Patricia Donnelly, Stuart Damon Hellring
  • Patent number: 5942651
    Abstract: A process for converting a heavy aromatics feed to lighter aromatic products, such as benzene and xylene, by reacting C.sub.9+ aromatic hydrocarbons and toluene or benzene under transalkylation reaction conditions, over a first catalyst composition including a zeolite having a constraint index ranging from 0.5 to 3 and a hydrogenation component and a second catalyst composition including an intermediate pore size zeolite having a constraint index ranging from 3 to 12 and a silica to alumina ratio of at least about 5, to produce a transalkylation reaction product containing benzene or toluene and xylene. The benzene or toluene from the reaction product can then be distilled to obtain a benzene or toluene product.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: August 24, 1999
    Assignee: Mobile Oil Corporation
    Inventors: James H. Beech, Jr., Stuart Damon Hellring, Terry Eugene Helton, Timothy Frederick Kinn, Sadi Mizrahi, Norman J. Rouleau