Patents by Inventor Mark M. Benjamin

Mark M. Benjamin 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).

  • Method for removing contaminants from liquids using membrane filtration in combination with particle adsorption to reduce fouling
    Patent number: 8070951
    Abstract: Metal oxide particles heated while immersed in water in a closed container are combined with membrane filtration to remove contaminants from water. The use of the heated particles reduces fouling of the membrane typically encountered when membranes alone are used to remove contaminants from water.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: December 6, 2011
    Assignee: University of Washington through its Center for Commercialization
    Inventors: Mark M. Benjamin, Yu-Jung Chang, Jaeshin Kim, Zhenxiao Cai
  • METHOD FOR REMOVING CONTAMINANTS FROM LIQUIDS USING MEMBRANE FILTRATION IN COMBINATION WITH PARTICLE ADSORPTION TO REDUCE FOULING
    Publication number: 20090314714
    Abstract: Metal oxide particles heated while immersed in water in a closed container are combined with membrane filtration to remove contaminants from water. The use of the heated particles reduces fouling of the membrane typically encountered when membranes alone are used to remove contaminants from water.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 24, 2009
    Applicant: WASHINGTON, UNIVERSITY OF
    Inventors: Mark M. Benjamin, Yu-Jung Chang, Jaeshin Kim, Zhenxiao Cai
  • Method for removing contaminants from water using membrane filtration in combination with particle adsorption to reduce fouling
    Patent number: 6113792
    Abstract: Heated iron oxide particles are combined with membrane filtration to remove contaminants from water. The use of the heated particles reduces fouling of the membrane typically encountered when membranes alone are used to remove contaminants from water. The heated particles of iron oxide are regenerable and can be reconditioned to revive their adsorption capacity. The heated particles can be added to the stream of contaminant containing water upstream of the membrane.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: September 5, 2000
    Assignee: University of Washington
    Inventors: Mark M. Benjamin, Yu-Jung Chang
  • Removing contaminants from water using iron oxide coated mineral having olivine structure
    Patent number: 5911882
    Abstract: Adsorbent media are prepared by contacting support material with iron containing solutions, followed by drying to coat the support material with iron. Support material such as sand and olivine are described. The adsorbent material can be used to remove metal contaminants and natural organic matter from water.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: June 15, 1999
    Assignee: University of Washington
    Inventors: Mark M. Benjamin, Yu-Jung Chang, Christopher R. McMeen
  • Granular media for removing contaminants from water and methods for making the same
    Patent number: 5369072
    Abstract: Adsorbent media are prepared by contacting support material with iron containing solutions, followed by drying to coat the support material with iron. Support materials such as sand and olivine are described. The adsorbent material can be used to remove metal contaminants and natural organic matter from water.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: November 29, 1994
    Assignee: University of Washington
    Inventors: Mark M. Benjamin, Robert P. Bailey, Thomas E. Bennett, Yu-Jung Chang, Chi-Wang Li, Marc A. Edwards, Paul R. Anderson