Patents by Inventor C. Bryan Skaggs

C. Bryan Skaggs 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).

  • Method of controlling loss of a subterranean treatment fluid
    Patent number: 6492305
    Abstract: Selectively cross-linked starches are disclosed that are useful as fluid loss control additives in subterranean treatment fluids comprising starches that cross-linked to a Brabender peak viscosity of about 800 to about 1250 Brabender units after about 40 to about 70 minutes at about 92° C. and provide good fluid loss control over a temperature range of from about 20° C. to about 160° C. (68° F. to 320° F.).
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: December 10, 2002
    Assignees: CP Kelco U.S., Inc., National Starch and Chemical Investment Holding Corporation
    Inventors: Thomas R. Sifferman, John M. Swazey, C. Bryan Skaggs, Nina Nguyen, Daniel B. Solarek
  • Fluid loss control additives and subterranean treatment fluids containing the same
    Publication number: 20010005709
    Abstract: Selectively cross-linked starches are disclosed that are useful as fluid loss control additives in subterranean treatment fluids comprising starches that are cross-linked to a Brabender peak viscosity of about 800 to about 1250 Brabender units after about 40 to about 70 minutes at about 92° C. and provide good fluid loss control over a temperature range of from about 20° C. to about 160° C. (68° F. to 320° F.).
    Type: Application
    Filed: January 24, 2001
    Publication date: June 28, 2001
    Inventors: Thomas R. Sifferman, John M. Swazey, C. Bryan Skaggs, Nina Nguyen, Daniel B. Solarek
  • Fluid loss control additives and subterranean treatment fluids containing the same
    Patent number: 6180571
    Abstract: Selectively cross-linked starches are disclosed that are useful as fluid loss control additives in subterranean treatment fluids comprising starches that are cross-linked to a Brabender peak viscosity of about 800 to about 1250 Brabender units after about 40 to about 70 minutes at about 92° C. and provide good fluid loss control over a temperature range of from about 20° C. to about 160° C. (68° F. to 320° F.).
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: January 30, 2001
    Assignees: Monsanto Company, National Starch and Chemical Investment Holding Corporation
    Inventors: Thomas R. Sifferman, John M. Swazey, C. Bryan Skaggs, Nina Nguyen, Daniel B. Solarek
  • Reticulated bacterial cellulose as a rheological modifier for polyol fluid compositions
    Patent number: 5951910
    Abstract: Rheologically modified compositions, and rheologically modified fluid compositions prepared therefrom, containing reticulated bacterial cellulose in a polyol base fluid, are disclosed. The amount of reticulated bacterial cellulose present in the composition is an amount effective to viscosify the polyol base fluid.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: September 14, 1999
    Assignee: Monsanto Company
    Inventors: C. Bryan Skaggs, Thomas R. Sifferman, John M. Swazey, Harold D. Dial, Walter G. Rakitsky
  • Scleroglucan as a rheological modifier for thermal insulation fluids
    Patent number: 5876619
    Abstract: This invention is directed to a rheologically modified composition containing scleroglucan in an polyol base fluid. The amount of scleroglucan present in the composition is an effective amount to viscosity an polyol base fluid to the point of substantially reducing convection flow in the composition. The composition may be used as an effective thermal insulation material. Applications for this type of insulating material include, among others, use as a de-icing fluid and use as a pipeline insulator. The rheologically modified insulation composition of this invention may be particularly suitable for maintaining high oil temperature during conveyance within a pipe located in a relatively low temperature environment such as sea water.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: March 2, 1999
    Assignee: Monsanto Company
    Inventors: C. Bryan Skaggs, John M. Swazey