Patents by Inventor John Petchul

John Petchul 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).

  • Patent number: 5575948
    Abstract: A microemulsion gel having antiseptic and bleaching properties is prepared from the combination of a water phase comprising water and propylene glycol with an oil phase generally comprising one or more surfactants, an emollient, and an oil. In its preferred embodiment, the oil phase comprises a polyethylene glycol ether of isocetyl alcohol, preferably Isoceteth-20, a polyethylene glycol ether of oleyl alcohol, preferably Oleth-2, and a polypropylene glycol ether of stearyl alcohol, preferably PPG-15 stearyl ether. The water phase optionally includes sorbitol and the oil of the oil phase may be mineral oil. The water and oil phases are heated independently then combined and mixed. Hydrogen peroxide is subsequently added to the composition, and the combination is cooled and allowed to stand until a gel is formed. A fragrance may be added as desired.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: November 19, 1996
    Assignee: John Petchul
    Inventors: John Petchul, Rosemary Gaudreault
  • Patent number: 5508029
    Abstract: An isopropyl alcohol gel having use as a rubbing composition and having antiseptic properties. The isopropyl alcohol gel of the present invention comprises a polymer, water, isopropyl alcohol and a polymer neutralizing agent. The polymer is dispersed in water to create a thick phase. The preferred polymer is a carbomer resin that forms a slightly gelatinous mass through hydration of the polymer. The selected amount of isopropyl alcohol is added by dispersion to the polymer-water phase. The mixture is allowed enough time to fully hydrate. A neutralizing agent is thereafter added to neutralize the activity of the polymer. The neutralizing agent is preferably tetrahydroxypropyl ethylenediamine. The resulting product is in homogenous heavy clear gel form.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: April 16, 1996
    Assignee: John Petchul
    Inventors: John Petchul, Rosemary Gaudreault
  • Patent number: 5376366
    Abstract: An isopropyl alcohol gel having use as a rubbing composition and having antiseptic properties. The isopropyl alcohol gel of the present invention comprises a polymer, water, isopropyl alcohol and a polymer neutralizing agent. The polymer is dispersed in water to create a thick phase. The preferred polymer is a carbomer resin that forms a slightly gelatinous mass through hydration of the polymer. The selected amount of isopropyl alcohol is added by dispersion to the polymer-water phase. The mixture is allowed enough time to fully hydrate. A neutralizing agent is thereafter added to neutralize the activity of the polymer. The neutralizing agent is preferably tetrahydroxypropyl ethylenediamine. The resulting product is in homogenous heavy clear gel form.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: December 27, 1994
    Assignee: John Petchul
    Inventors: John Petchul, Rosemary Gaudreault
  • Patent number: 5336432
    Abstract: A microemulsion gel having antiseptic and bleaching properties is prepared from the combination of a water phase comprising water and propylene glycol with an oil phase generally comprising one or more surfactants, an emollient, and an oil. In its preferred embodiment, the oil phase comprises a polyethylene glycol ether of isocetyl alcohol, preferably Isoceteth-20 (trademark), a polyethylene glycol ether of oleyl alcohol, preferably Oleth-2 (trademark), and a polypropylene glycol ether of stearyl alcohol, preferably PPG-15 stearyl ether (trademark). The water phase optionally includes sorbitol and the oil of the oil phase may be mineral oil. The water and oil phases are heated independently then combined and mixed. Hydrogen peroxide is subsequently added to the composition, and the combination is cooled and allowed to stand until a gel is formed. A fragrance may be added as desired.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: August 9, 1994
    Assignee: John Petchul
    Inventors: John Petchul, Rosemary Gaudreault