Patents by Inventor Dale A. Grinstead

Dale A. Grinstead 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: 20220338481
    Abstract: A method of controlling a biofilm comprises contacting the biofilm with probiotic species and contacting the biofilm with chemical disinfectant. The biofilm may be contacted with the probiotic species and the chemical disinfectant simultaneously or sequentially. The method provides a higher reduction in the amount of at least one microbial species in the biofilm, compared to a similar method applying only the chemical disinfectant. Furthermore, the method may provide an unexpected synergy between the probiotic species and the chemical disinfectant in controlling the biofilm.
    Type: Application
    Filed: June 19, 2020
    Publication date: October 27, 2022
    Inventors: Xiaobao Li, Bret Glembocki, Dale Grinstead, Kenneth Roach, David Limbaugh
  • Publication number: 20120219480
    Abstract: A composition for use in air scrubbers, and particularly, cleaning air scrubbers is provided, along with methods for cleaning air scrubbers using the same. The composition includes at least one of components A, B, C, and D. Component A includes at least one surfactant and at least one enzyme. Component B includes at least one surfactant. Component C includes at least one pH control agent. Component D includes at least one defoamer. The compositions may be used to remove volatile organic compounds from air.
    Type: Application
    Filed: August 31, 2010
    Publication date: August 30, 2012
    Applicant: DIVERSEY, INC.
    Inventors: William E. Simpson, Keith W. Kennedy, Dale A. Grinstead, Michael F. Coughlin, Kenneth J. Roach, Stephen Lyon, Maynard J. Riley, Garry W. Crossdale
  • Publication number: 20090324746
    Abstract: The invention relates to a multi-component chlorine dioxide producing system. The invention produces effective amounts of chlorine dioxide in five minutes or less without instantaneous production or loss of chlorine dioxide. The invention further includes a dispensing apparatus to allow for the dispensing of the multi component system to allow for insitu production of chlorine dioxide.
    Type: Application
    Filed: July 22, 2009
    Publication date: December 31, 2009
    Inventors: Andrew M. Bober, Charles Crawford, Dale A. Grinstead, Masahiro Nishizawa, Kenneth J. Roach, Carol Anne Rouillard, James H. Whitehead, William B. Wright
  • Publication number: 20070219106
    Abstract: A method for controlling Listeria in floor drains wherein an aqueous solution composed of a chlorinated caustic material which is soft metal compatible is introduced into a drain where Listeria is present. In a preferred manner, the aqueous solution is introduced into the drain employing a hose end dispensing device having a foam producing nozzle. The resulting aqueous solution has a sufficient viscosity to remain in the drain for about 30 seconds to 10 minutes.
    Type: Application
    Filed: May 23, 2007
    Publication date: September 20, 2007
    Inventors: Dale Grinstead, James Wilson, Thomas Beinkemper
  • Publication number: 20050013763
    Abstract: The invention relates to a multi-component chlorine dioxide producing system. The invention produces effective amounts of chlorine dioxide in five minutes or less without instantaneous production or loss of chlorine dioxide. The invention further includes a dispensing apparatus to allow for the dispensing of the multi component system to allow for insitu production of chlorine dioxide.
    Type: Application
    Filed: May 11, 2004
    Publication date: January 20, 2005
    Applicant: JOHNSONDIVERSEY, INC.
    Inventors: Andrew Bober, Charles Crawford, Dale Grinstead, Masahiro Nishizawa, Kenneth Roach, Carol Rouillard, James Whitehead, William Wright
  • Patent number: 6083517
    Abstract: An antibacterial cleaning composition comprising about 0.05 to about 1 wt. % of a cationic polymer having a charge density of 0.0025 or higher, about 0.2 to about 10 wt. % of an alkylpolyglucoside having a formula: R--O(-G).sub.n wherein R is an alkyl group having from about 8 to about 22 carbon atoms, G is a saccharide residue having 5 or 6 carbon atoms and n is a number from 1-10, about 0.2 to about 5% of a zwitterionic surfactant and about 0.2 to about 5 wt. % of a biquanide compound, the composition having a pH of 7.5 or greater.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: July 4, 2000
    Assignee: Lever Brothers Company, division of Conopco, Inc.
    Inventors: Kavssery Ananthapadmanabhan, Kam Chan, Dale Grinstead, Carol Vincent
  • Patent number: 5639659
    Abstract: An anti-bacterial agent for controlling the growth of certain lactic acid bacteria is provided. The anti-bacterial agent, or bacteriocin, is produced by Propionibacterium jensenii, and specifically by the P126 and P1264 strains of the particular species. The process employs the bacteriocins to inhibit the growth of other bacterial cultures, including yogurt starter cultures. The bacteriocins are stable across a broad range of pHs and are stable at relatively high and prolonged temperatures and have a wide activity spectrum against bacteria. The bacteriocins are particularly useful in controlling the over-acidification of yogurt to decrease the sour taste often found in yogurt.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: June 17, 1997
    Assignee: Clemson University
    Inventors: Susan F. Barefoot, Dale A. Grinstead