Patents by Inventor Elizabeth Williams-Duncan

Elizabeth Williams-Duncan 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).

  • Patent number: 9992875
    Abstract: The present invention relates to an electrical assembly which has a conformal coating, wherein said conformal coating is obtainable by a method which comprises: (a) plasma polymerization of a compound of formula (I) and a fluorohydrocarbon, wherein the molar ratio of the compound of formula (I) to the fluorohydrocarbon is from 5:95 to 50:50, and deposition of the resulting polymer onto at least one surface of the electrical assembly: wherein: R1 represents C1-C3 alkyl or C2-C3 alkenyl; R2 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl; R3 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl; R4 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl; R5 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl; and R6 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl, and (b) plasma polymerization of a compound of formula (I) and deposition of the resulting polymer onto the polymer formed in step (a).
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: June 5, 2018
    Assignee: Semblant Limited
    Inventor: Elizabeth Williams-Duncan
  • Publication number: 20170245374
    Abstract: The present invention relates to an electrical assembly which has a conformal coating, wherein said conformal coating is obtainable by a method which comprises: (a) plasma polymerization of a compound of formula (I) and a fluorohydrocarbon, wherein the molar ratio of the compound of formula (I) to the fluorohydrocarbon is from 5:95 to 50:50, and deposition of the resulting polymer onto at least one surface of the electrical assembly: wherein: R1 represents C1-C3 alkyl or C2-C3 alkenyl; R2 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl; R3 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl; R4 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl; R5 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl; and R6 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl, and (b) plasma polymerization of a compound of formula (I) and deposition of the resulting polymer onto the polymer formed in step (a).
    Type: Application
    Filed: March 25, 2014
    Publication date: August 24, 2017
    Inventor: Elizabeth Williams-Duncan