Patents by Inventor Mohammad Usman Rafi

Mohammad Usman Rafi 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).

  • Filter structure for removing contaminants from stream of fluid
    Patent number: 9415340
    Abstract: Various methods and apparatus are disclosed that relate to one or more aspects of a filter structure that may remove contaminants from a stream of fluid. In various aspects the filter structure includes a front portion having a first orientation and a rear portion having a second orientation unique from the first orientation.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: August 16, 2016
    Assignee: American Air Filter Company Inc.
    Inventors: Mohammad Usman Rafi, Nathaniel Nance
  • Filter Structure for Removing Contaminants from Stream of Fluid
    Publication number: 20150033687
    Abstract: Various methods and apparatus are disclosed that relate to one or more aspects of a filter structure that may remove contaminants from a stream of fluid. In various aspects the filter structure includes a front portion having a first orientation and a rear portion having a second orientation unique from the first orientation.
    Type: Application
    Filed: September 15, 2014
    Publication date: February 5, 2015
    Inventors: Mohammad Usman Rafi, Nathaniel Nance
  • Filter structure for removing contaminants from stream of fluid
    Patent number: 8834591
    Abstract: Various methods and apparatus are disclosed that relate to one or more aspects of a filter structure that may remove contaminants from a stream of fluid. In various aspects the filter structure includes a front portion having a first orientation and a rear portion having a second orientation unique from the first orientation.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: September 16, 2014
    Assignee: AAF-McQuay Inc.
    Inventors: Mohammad Usman Rafi, Nathaniel Nance
  • Filter Structure for Removing Contaminants from Stream of Fluid
    Publication number: 20120079798
    Abstract: Various methods and apparatus are disclosed that relate to one or more aspects of a filter structure that may remove contaminants from a stream of fluid. In various aspects the filter structure includes a front portion having a first orientation and a rear portion having a second orientation unique from the first orientation.
    Type: Application
    Filed: July 5, 2011
    Publication date: April 5, 2012
    Inventors: Mohammad Usman Rafi, Nathaniel Nance
  • Air filter
    Patent number: D641461
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: July 12, 2011
    Assignee: AAF-McQuay Inc.
    Inventor: Mohammad Usman Rafi
  • Air filter
    Patent number: D641462
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: July 12, 2011
    Assignee: AAF-McQuay Inc.
    Inventor: Mohammad Usman Rafi
  • Air filter
    Patent number: D652130
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: January 10, 2012
    Assignee: AAF-McQuay Inc.
    Inventor: Mohammad Usman Rafi
  • Air filter
    Patent number: D652498
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: January 17, 2012
    Assignee: AAF-McQuay Inc.
    Inventor: Mohammad Usman Rafi