Patents by Inventor Paul A. Hughes

Paul A. Hughes 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).

  • Polymeric blend comprising polylactic acid
    Patent number: 9163141
    Abstract: A blend comprises at least 50 wt. % polylactic acid and at least 5 wt. % of polymer selected from one or more of: (i) ethylene/unsaturated ester copolymer having an unsaturated ester comonomer content of at least about 30% based on the weight of the ethylene/unsaturated ester copolymer; (ii) modified ethylene/unsaturated ester copolymer; (iii) polyetheramide block copolymer; (iv) propylene/ethylene copolymer comprising at least about 12% and at most about 16% ethylene monomer content based on the weight of the propylene/ethylene copolymer; and (v) styrenic block copolymer. An article such as a tray, film, or sheet may comprise the blend.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: October 20, 2015
    Assignee: Cryovac, Inc.
    Inventors: Michael L. Becraft, Paul A. Hughes, Slawomir Opuszko
  • Multilayer film comprising polylactic acid
    Patent number: 8206796
    Abstract: An article comprises a first polylactic acid layer and a second layer directly adjacent the first layer. The second layer comprises any of ethylene/unsaturated ester copolymer, ethylene/alkyl (meth)acrylate/glycidyl (meth)acrylate copolymer, and styrenic block copolymer. The article may be a shrink sleeve.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: June 26, 2012
    Assignee: Cryovac, Inc.
    Inventors: Slawomir Opusko, Paul A. Hughes, Michael L. Becraft, Larry B. McAllister
  • Processes for water and wastewater treatment, Including stationary cloth media filtration
    Publication number: 20110120960
    Abstract: The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.
    Type: Application
    Filed: December 7, 2010
    Publication date: May 26, 2011
    Inventors: David Smith, Paul A. Hughes, Lioyd W. Johnson, Peter G. Baumann
  • Processes for water and wastewater treatment, including stationary cloth media filtration
    Patent number: 7871527
    Abstract: The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: January 18, 2011
    Assignee: Aqua-Aerobic Systems, Inc.
    Inventors: David Smith, Paul A. Hughes, Lloyd W. Johnson, Peter G. Baumann
  • Processes and devices for water and wastewater treatment, including stationary cloth media filtration
    Patent number: 6858140
    Abstract: The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: February 22, 2005
    Assignee: Aqua-Aerobic Systems, Inc.
    Inventors: David Smith, Paul A. Hughes, Lloyd W. Johnson, Peter G. Baumann
  • Processes and devices for water and wastewater treatment, including stationary cloth media filtration
    Publication number: 20040124158
    Abstract: The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.
    Type: Application
    Filed: December 26, 2002
    Publication date: July 1, 2004
    Applicant: Aqua-Aerobic Systems, Inc.
    Inventors: David Smith, Paul A. Hughes, Lloyd W. Johnson, Peter G. Baumann
  • Treatment process for removing microbial contaminants suspended in wastewater
    Patent number: 6110374
    Abstract: A treatment process is disclosed for reducing the concentration of pathogenic microorganisms in a volume of wastewater that contains a substantial concentration of pathogenic microorganisms less than about 10 microns in size, less than about 5 microns in size, and less than about 0.1 microns in size. The process includes adding an agglomerate-promoting agent, such as a coagulant chemical, to the volume of wastewater such that the solids aggregates form in the volume of wastewater and include the pathogenic microorganisms. The volume of wastewater is then passed through a filter cloth membrane to separate greater than about 50.0% of the pathogenic microorganisms less than 10 microns in size from the volume of wastewater, to separate up to about 99.9% of the pathogenic microorganisms less than about 5 microns in size, and to separate up to about 99% of the pathogenic microorganisms less than about 0.1 microns in size.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: August 29, 2000
    Assignee: Aqua-Aerobic Systems, Inc.
    Inventor: Paul A. Hughes