Patents by Inventor Robert Governal

Robert Governal 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).

  • Publication number: 20080093310
    Abstract: Provided is separation media comprising: a base mixture having an adsorptive organic component and an inorganic component; an anti-microbial component comprising a quaternary ammonium salt containing an epoxide group; and a covalent bond directly between the quaternary ammonium salt containing an epoxide group and the inorganic component. The covalent bond is, for example, between the epoxide group and a hydroxyl group of the inorganic component. The quaternary ammonium salt containing the epoxide group can be poly(methyldiallylamine epichlorohydrin). Further, the quaternary ammonium salt containing the epoxide group can have the formula according to I: wherein n is in the range of 5 to 24. The inorganic component can be diatomaceous earth, and the adsorptive organic component can be activated carbon.
    Type: Application
    Filed: November 28, 2007
    Publication date: April 24, 2008
    Inventors: Eshan Yeh, Robert Governal, Thomas Hamlin, Hemang Patel, Marjorie Bucholz
  • Publication number: 20070075025
    Abstract: In one embodiment, the present disclosure provides fail-safe mechanisms for final filters. The fail-safe mechanisms of the present disclosure include a prefilter that is essentially transparent or translucent to TOC contaminants and a microporous filter downstream from the prefilter that filters contaminants by means of size-exclusion, mechanical interception, coagulation, or a combination thereof, the filter being adapted to significantly reduce fluid flow and undergo blockage under a challenge by TOC contaminants.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 5, 2007
    Inventors: Hemang Patel, Keith Wesner, Thomas Hamlin, Robert Governal, Guillermo Vidal, Dimitris Collias, Jeannine Bahm
  • Publication number: 20050279696
    Abstract: A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided.
    Type: Application
    Filed: April 29, 2005
    Publication date: December 22, 2005
    Inventors: Jeannine Bahm, Andrew Pearks, Guillermo Vidal, Dimitris Collias, Michael Mitchell, Robert Astle, Katharine Faye, Robert Governal, Thomas Hamlin, Rebecca Lucht, Hemang Patel
  • Publication number: 20050263453
    Abstract: A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided.
    Type: Application
    Filed: April 7, 2005
    Publication date: December 1, 2005
    Inventors: Dimitris Collias, Michael Mitchell, Robert Astle, Katharine Faye, Robert Governal, Thomas Hamlin, Rebecca Lucht, Hemang Patel
  • Publication number: 20050211635
    Abstract: An improved fluid filtration media having anti-microbial properties and methods for producing and utilizing improved fluid filtration media having anti-microbial properties and employing the same in fluid filtration applications wherein one representative separation media for fluids comprises a base mixture of organic and inorganic components comprising at least one anti-microbial component; and at least one component of the base mixture comprises a charge-modified group covalently bonded to the surface of the at least one anti-microbial component is disclosed.
    Type: Application
    Filed: March 23, 2005
    Publication date: September 29, 2005
    Inventors: Eshan Yeh, Robert Governal, Thomas Hamlin, Hemang Patel, Marjorie Bucholz