Patents by Inventor Thomas N. Haynes

Thomas N. Haynes 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).

  • Composite polyamide membrane including dissolvable polymer coating
    Patent number: 9533262
    Abstract: A thin film composite membrane including a thin film polyamide layer positioned between a porous support and an outer coating, and a humectant; wherein the membrane has an A-value of at least 8 l/m2 hr/bar when tested at 25 l/m2 hr with pure water at 25° C. for one hour, and wherein the outer coating comprises a dissolvable cellulose polymer provided at coverage of at least 10 mg/m2 that substantially dissolves from the membrane after one hour of continuous cross-flow of water at 25 l/m2 hr and 25° C.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: January 3, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Thomas N. Haynes, Allyn R. Marsh, III
  • COMPOSITE POLYAMIDE MEMBRANE INCLUDING DISSOLVABLE POLYMER COATING
    Publication number: 20150367288
    Abstract: A thin film composite membrane including a thin film polyamide layer positioned between a porous support and an outer coating, and a humectant; wherein the membrane has an A-value of at least 8 l/m2 hr/bar when tested at 25 l/m2 hr with pure water at 25° C. for one hour, and wherein the outer coating comprises a dissolvable cellulose polymer provided at coverage of at least 10 mg/m2 that substantially dissolves from the membrane after one hour of continuous cross-flow of water at 25 l/m2 hr and 25° C.
    Type: Application
    Filed: February 28, 2014
    Publication date: December 24, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Thomas N. Haynes, Allyn R. Marsh III
  • Membrane leaf packet with reinforced fold
    Patent number: 7875177
    Abstract: The present invention is directed toward membrane leaf packets, spiral wound modules and methods for making and using the same. The subject leaf packet comprises a membrane sheet folded upon itself and reinforced with sealant and tape along at least a portion of the fold on the back side of the membrane sheet.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: January 25, 2011
    Assignee: Dow Global Technologies Inc.
    Inventors: Thomas N. Haynes, Pam G. Hinton, Jon E. Johnson, Thomas M. Lanz, Abhishek Shrivastava
  • MEMBRANE LEAF PACKET WITH REINFORCED FOLD
    Publication number: 20100140161
    Abstract: The present invention is directed toward membrane leaf packets, spiral wound modules and methods for making and using the same. The subject leaf packet comprises a membrane sheet folded upon itself and reinforced with sealant and tape along at least a portion of the fold on the back side of the membrane sheet.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 10, 2010
    Inventors: Thomas N. Haynes, Pam G. Hinton, Jon E. Johnson, Thomas M. Lanz, Abhishek Shrivastava