Patents by Inventor Mohand Melbouci

Mohand Melbouci 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: 6620769
    Abstract: This invention provides a water-free oil based fluid polymer suspension composition for use as a rheology modifier and fluid loss reducer in oil or gas well servicing fluids. It has been found that by using white medicinal oil as a carrier, high solids content and environmental friendly anhydrous fluidized polymer suspensions of xanthan gum, cellulose ethers, guar gum and derivatives thereof can be prepared. More specifically, in one aspect, an oil-based fluid polymer suspension (FPS) composition for use in oil or gas well servicing fluids is preferred containing: a) a hydrophilic polymer, b) an organophilic clay, c) a stabilizer, and d) a white medicinal oil having selected properties.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: September 16, 2003
    Assignee: Hercules Incorporated
    Inventors: Herbert L. Juppe, Robert P. Marchant, Mohand Melbouci
  • Patent number: 6590050
    Abstract: The present invention relates to compositions and use of water-soluble or water-dispersible copolymers for oil field applications. Specifically, the present invention relates to polymers containing allyloxy linkage andits functional dervatives for use in oil field applications as fluid additives for drilling and cementing processes.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: July 8, 2003
    Assignee: Hercules Incorporated
    Inventors: Keith A. Bair, Fu Chen, Mohand Melbouci, Teng-Shau Young, De-Kai Loo
  • Patent number: 6562090
    Abstract: A fluid abrasive suspension composition has an abrasive, suspending vehicle, and a water-swellable or water-soluble polymer. This composition is used to make a stable dentifrice formulation.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: May 13, 2003
    Assignee: Hercules Incorporated
    Inventors: Mohand Melbouci, Jashawant J. Modi
  • Publication number: 20020173430
    Abstract: Environmentally acceptable well cement fluid loss control additives, cement compositions including the additives and methods of using the compositions are provided. The environmentally acceptable fluid loss control additives are comprised of ethoxylated hydroxyethylcellulose having a reduced molecular weight.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 21, 2002
    Inventors: Jan Pieter Vijn, Bach Dao, Mohand Melbouci
  • Publication number: 20020162486
    Abstract: Environmentally acceptable well cement fluid loss control additives, cement compositions including the additives and methods of using the compositions are provided. The environmentally acceptable fluid loss control additives are comprised of ethoxylated hydroxyethylcellulose having a reduced molecular weight.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 7, 2002
    Inventors: Jan Pieter Vijn, Bach Dao, Mohand Melbouci
  • Patent number: 6465587
    Abstract: The present invention relates to compositions and use of water-soluble or water-dispersible copolymers for oil field applications. Specifically, the present invention relates to polymers containing allyloxy linkage and its functional dervatives for use in oil field applications as fluid additives for drilling and cementing processes.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: October 15, 2002
    Assignee: Hercules Incorporated
    Inventors: Keith A. Bair, Fu Chen, Mohand Melbouci, Teng-Shau Young, De-Kai Loo
  • Patent number: 6405801
    Abstract: Environmentally acceptable well cement fluid loss control additives, cement compositions including the additives and methods of using the compositions are provided. The environmentally acceptable fluid loss control additives are comprised of ethoxylated hydroxyethylcellulose having a reduced molecular weight.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: June 18, 2002
    Assignees: Halliburton Energy Services, Inc., Hercules Incorporated
    Inventors: Jan Pieter Vijn, Bach Dao, Mohand Melbouci
  • Patent number: 6197100
    Abstract: Composition comprising water soluble polymer, such as cellulose ethers, guar, or derivatives thereof and surfactant, such as sorbitan esters, improves dispersibility of polymer in aqueous media.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: March 6, 2001
    Assignee: Hercules Incorporated
    Inventor: Mohand Melbouci
  • Patent number: 6113891
    Abstract: There are disclosed stable fluidized polymer suspensions containing cationic polysaccharide, stabilizing agent and emollient. The preferred cationic polysaccharides are cationic guar and cationic hydroxypropyl guar, and preferred emollients are hydrocarbons, silicone oils and esters. Processes for preparing personal care compositions utilizing the fluidized polymer suspensions are also disclosed. Using the fluidized polymer suspensions in the processes provides the advantages of more rapid dissolution and avoidance of lumps and gels when compared to using dry, powdered cationic polysaccharides.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: September 5, 2000
    Assignee: Hercules Incorporated
    Inventors: Charles Lee Burdick, Jacobus Johannes deBruin, Hans Hofman, Mohand Melbouci
  • Patent number: 6093769
    Abstract: There are disclosed stable fluidized polymer suspensions containing cationic polysaccharide, stabilizing agent and water-soluble polyol. The preferred cationic polysaccharides are cationic guar and cationic hydroxypropyl guar. Processes for preparing personal care compositions utilizing the fluidized polymer suspensions are also disclosed. Using the fluidized polymer suspensions in the processes provides advantages of more rapid dissolution and avoidance of lumps and gels when compared to using dry, powdered cationic polysaccharides.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: July 25, 2000
    Assignee: Hercules Incorporated
    Inventors: Charles Lee Burdick, Mohand Melbouci, Hans Hofman, Jacobus Johannes deBruin
  • Patent number: 5932193
    Abstract: Disclosed are toothpaste compositions and a process for preparing such compositions comprising dental abrasive, humectant, fluidized polymer suspension and a suitable vehicle for the humectant, wherein the fluidized polymer suspension comprises: polyethylene glycol, carboxymethyl cellulose and hydrated thickening silica.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: August 3, 1999
    Assignee: Hercules Incorporated
    Inventors: Jean-Paul Lopez, Mohand Melbouci, Gerhard Dewald