Patents by Inventor Brent Joseph Steffensmeier

Brent Joseph Steffensmeier 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).

  • Membrane module
    Patent number: 7998254
    Abstract: A helically wound hollow membrane module having a core with a plurality of helically wound layers of semi-permeable hollow fibers wound on the core. The fiber wind angle with respect to any one layer of fibers may be essentially constant along the axial length of the module, except in one or both end or tubesheet regions, where the wind angle may be increased, in at least some of the layers relative to the essentially constant wind angle, to produce an area of decreasing diameter.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: August 16, 2011
    Assignee: Porous Media Corporation
    Inventors: John Henry Burban, Jeffrey William Berg, Brent Joseph Steffensmeier, Joseph Charles Tuma, Carl Matthew Geisz, Craig Jonathan Cuta
  • Membrane module
    Publication number: 20080072754
    Abstract: A helically wound hollow membrane module having a core with a plurality of helically wound layers of semi-permeable hollow fibers wound on the core. The fiber wind angle with respect to any one layer of fibers may be essentially constant along the axial length of the module, except in one or both end or tubesheet regions, where the wind angle may be increased, in at least some of the layers relative to the essentially constant wind angle, to produce an area of decreasing diameter.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Inventors: John Henry Burban, Jeffrey William Berg, Brent Joseph Steffensmeier, Joseph Charles Tuma, Carl Matthew Geisz, Craig Jonathan Cuta