Patents by Inventor Ernest E. Senderov

Ernest E. Senderov 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).

  • Lanthanide halide water treatment compositions and methods
    Patent number: 6312604
    Abstract: The present invention relates to compositions and methods for treating water to reduce the phosphate level thereof and control the growth therein of algae and other microorganisms by treating the water with an effective amount of a composition containing a lanthanide halide.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: November 6, 2001
    Assignee: Zodiac Pool Care, Inc.
    Inventors: Raymond P. Denkewicz, Jr., Ernest E. Senderov, Joseph W. Grenier, Therese Souza
  • Biocidal compositions for treating water
    Patent number: 6217780
    Abstract: The present invention is directed to a biocidal water treatment composition, water treatment apparatus, and method of treating water to reduce levels of pathogens. The composition contains sources of copper, zinc, and silver metal ions within a crosslinked polymer matrix. Examples of these ion sources include copper sulfate, zinc sulfate, and silver nitrate. An example of the crosslinked polymer matrix is crosslinked chitosan, which also serves to clarify the water and release the metal ions over time. The product is easy to manufacture, and allows the use of decreased halogen sanitizer, as well as decreased copper ion, thereby decreasing the likelihood of staining. The product simultaneously provides good bactericidal and algaecidal properties, despite low levels of copper ion and low chlorine levels.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: April 17, 2001
    Assignee: Zodiac Pool Care, Inc.
    Inventors: Raymond P. Denkewicz, Jr., Ernest E. Senderov, Joseph W. Grenier
  • Biocidal compositions for treating water
    Patent number: 6093422
    Abstract: The present invention is directed to a biocidal water treatment composition, water treatment apparatus, and method of treating water to reduce levels of pathogens. The composition contains sources of copper, zinc, and silver metal ions within a crosslinked polymer matrix. Examples of these ion sources include copper sulfate, zinc sulfate, and silver nitrate. An example of the crosslinked polymer matrix is crosslinked chitosan, which also serves to clarify the water and release the metal ions over time. The product is easy to manufacture, and allows the use of decreased halogen sanitizer, as well as decreased copper ion, thereby decreasing the likelihood of staining. The product simultaneously provides good bactericidal and algaecidal properties, despite low levels of copper ion and low chlorine levels.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: July 25, 2000
    Assignee: Zodiac Pool Care, Inc.
    Inventors: Raymond P. Denkewicz, Jr., Ernest E. Senderov, Joseph W. Grenier