Patents by Inventor Dale Grinstead

Dale 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: 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