Patents Represented by Attorney Hendricks & Associates

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  • Aerosol particle deposition on surfaces
    Patent number: 8286517
    Abstract: A method and apparatus for generating a standardized surface contaminated by an aerosol deposited on its surface is described. Aerosols are propelled horizontally onto a vertical surface. The standardized contaminated surface is used to evaluate the effectiveness of cleaning and removing techniques.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: October 16, 2012
    Assignee: The United States of America as represented by the Administrator of the U.S. Environments Protection Agency
    Inventors: Sang Don Lee, Shawn P. Ryan, Emily G. Snyder
  • Zero angle photon spectrophotometer for monitoring of water systems
    Patent number: 8102518
    Abstract: A method and apparatus for monitoring water and other fluid systems is described. The fluid is continually monitored spectrophotometrically by measuring many optical parameters in an in-line, on-line system, which compensates for normal fluid changes while detecting abnormalities.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: January 24, 2012
    Inventors: Roy C. Haught, Gary P. Klinkhammer, Frank J. Bussell
  • Hydrophilic mixed matrix material having reversible water absorbing properties
    Patent number: 7485233
    Abstract: Polymer-ceramic mixed matrix compositions contain one or more organic polymers and a nano-sized dispersion of inorganic metal oxide particles which are dispersed throughout the composition. Materials have use in making membranes that act as transfer agents.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: February 3, 2009
    Assignee: U.S. Environmental Protection Agency
    Inventors: Leland Morris Vane, Ravi Prasad Ponangi
  • Method for detection for total coliforms and
    Patent number: 7148033
    Abstract: An improved method for detection of total coliforms and E. coli comprising a broth containing an ingredient that will suppress growth of non-coliform gram negative bacteria, and at least one chromogen or fluorogen has been used effectively and is cost effective. Preferred methods include use of filter and/or plates containing the growth-promoting ingredients and the indicators.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: December 12, 2006
    Assignee: The United States of America as represented by the Administrator of the U. S. Environmental Protection Agency
    Inventors: Kristen P. Brenner, Clifford C. Rankin, Yvette R. Roybal-McKenna, Alfred P. Dufour
  • Hydrophilic mixed matrix materials having reversible water absorbing properties
    Patent number: 6881364
    Abstract: Polymer-ceramic mixed matrix compositions contain one or more organic polymers and a nano-sized dispersion of inorganic metal oxide particles which are dispersed throughout the composition. Materials have use in making membranes that act as transfer agents.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: April 19, 2005
    Assignee: U.S. Environmental Protection Agency
    Inventors: Leland Morris Vane, Ravi Prasad Ponangi
  • Method for detection of total coliforms and E. coli
    Patent number: 6670145
    Abstract: An improved method for detection of total coliforms and E. coli comprising a broth containing an ingredient that will encourage growth and repair of injured coliforms, buffers to maintain a pH in the range of 6.5-8, at least one agent that suppresses growth of gram positive cocci and spore-forming organisms, at least one active agent that will suppress growth of non-coliform gram negative bacteria, and at least one chromogen or fluorogen has been used effectively and is cost effective. In the preferred embodiment, both a fluorogen and chromogen were used. Preferred methods include use of filter and/or plates containing the growth-promoting ingredients and the indicators.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: December 30, 2003
    Assignee: The United States of America as represented by the Administrator of the Environmental Protection Agency
    Inventors: Kristen P. Brenner, Clifford C. Rankin, Yvette R. Roybal-McKenna, Alfred P. Dufour