Patents by Inventor Michael L. Heise

Michael L. Heise 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 cartridge construction and process for filtering particle-containing paint composition
    Patent number: 6000558
    Abstract: A filter element for filtering a particle-containing paint composition or a particle loading slurry composition which is a precursor to a particle-containing paint composition is provided. The filtration element comprises at least one filtration layer formed from woven polymer fibers and having substantially uniform pores and two spacer layers. The spacer layers have raised projections to create a space between adjacent spacer layers having contacting projections. The filtration element has a pleated or spirally wound configuration.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: December 14, 1999
    Assignee: Millipore Corporation
    Inventors: Stephen Proulx, Michael L. Heise
  • Filter cartridge construction and process for filtering particle-containing paint compositions
    Patent number: 5798049
    Abstract: A filter element for filtering a particle-containing paint composition or a particle loading slurry composition which is a precursor to a particle-containing paint composition is provided. The filtration element comprises at least one filtration layer formed from woven polymer fibers and having substantially uniform pores and two spacer layers. The spacer layers have raised projections to create a space between adjacent spacer layers having contacting projections. The filtration element has a pleated or spirally wound configuration.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: August 25, 1998
    Assignee: Millipore Corporation
    Inventors: Stephen Proulx, Paul J. Cook, Michael L. Heise
  • Filter cartridge construction and process for filtering particle-containing paint compositions
    Patent number: 5736044
    Abstract: A filter element for filtering a particle-containing paint composition or a particle loading slurry composition which is a precursor to a particle-containing paint composition is provided. The filtration element comprises at least one filtration layer formed from woven polymer fibers and having substantially uniform pores and two spacer layers. The spacer layers have raised projections to create a space between adjacent spacer layers having contacting projections. The filtration element has a pleated or spirally wound configuration.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: April 7, 1998
    Inventors: Stephen Proulx, Paul J. Cook, Michael L. Heise