Patents by Inventor Robert J. Gutowski

Robert J. Gutowski 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).

  • Process for producing stabilized magnesium hydroxide slurries
    Patent number: 5989517
    Abstract: Magnesium hydroxide slurries and a method of producing same that can be shipped, without agitation, over a period of at least 28 days and can be readily removed from transport vehicles to customer storage. With respect to customer usage, such slurries can be readily handled without leaving significant residue in storage tanks and without fouling the customer's equipment. Also disclosed are magnesium hydroxide slurries containing a level of solids that is greater than what is commercially available and a method of producing same.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: November 23, 1999
    Assignee: Martin Marietta Magnesia Specialties Inc.
    Inventors: Alvin Richmond, Robert J. Gutowski
  • Process for producing stabilized magnesium hydroxide slurries
    Patent number: 5824279
    Abstract: Magnesium hydroxide slurries and a method of producing same that can be shipped, without agitation, over a period of at least 28 days and can be readily removed from transport vehicles to customer storage. With respect to customer usage, such slurries can be readily handled without leaving significant residue in storage tanks and without fouling the customer's equipment. Also disclosed are magnesium hydroxide slurries containing a level of solids that is greater than what is commercially available and a method of producing same.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: October 20, 1998
    Assignee: Martin Marietta Magnesia Specialties, Inc.
    Inventors: Alvin Richmond, Robert J. Gutowski
  • Stabilized magnesium hydroxide slurry
    Patent number: 5762901
    Abstract: A method for producing a stabilized magnesium hydroxide slurry comprising physically deflocculating the magnesium hydroxide solids in a starting slurry to produce a stabilized magnesium hydroxide slurry. Depending on the chloride level of the starting slurry, a cationic polymer may be added to the slurry. Optionally a thickening agent may be added to the deflocculated slurry. Also disclosed is a stabilized magnesium hydroxide slurry produced by the method which may be transported and stored without substantial agglomeration of the magnesium hydroxide solids.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: June 9, 1998
    Assignee: Martin Marietta Magnesia Specialties
    Inventors: Alvin Richmond, Robert J. Gutowski
  • Stabilized magnesium hydroxide slurry
    Patent number: 5514357
    Abstract: A method for producing a stabilized magnesium hydroxide slurry comprising physically deflocculating the magnesium hydroxide solids in a starting slurry to produce a stabilized magnesium hydroxide slurry. Depending on the chloride level of the starting slurry, a cationic polymer may be added to the slurry. Optionally a thickening agent may be added to the deflocculated slurry. Also disclosed is a stabilized magnesium hydroxide slurry produced by the method which may be transported and stored without substantial agglomeration of the magnesium hydroxide solids.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: May 7, 1996
    Assignee: Martin Marietta Magnesia Specialties Inc.
    Inventors: Alvin Richmond, Robert J. Gutowski