Patents by Inventor Thomas Charles Kowalski

Thomas Charles Kowalski 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).

  • Microencapsulated oil field chemicals
    Patent number: 6326335
    Abstract: Gelatin capsules containing oil field chemicals, preferably weighted with a heavy metal compound, are made more stable under certain conditions by the incorporation of a strong chelating agent. The microcapsules can provide an extended treatment period since many materials that would damage the microcapsules are controlled by the chelating agent.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: December 4, 2001
    Assignee: Corsicana Technologies, Inc.
    Inventors: Thomas Charles Kowalski, Robert Wayne Pike
  • Microencapsulated oil field chemicals
    Patent number: 5922652
    Abstract: Gelatin capsules containing oil field chemicals, preferably weighted with a heavy metal compound, are made more stable under certain conditions by the incorporation of a strong chelating agent. The microcapsules can provide an extended treatment period since many materials that would damage the microcapsules are controlled by the chelating agent.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: July 13, 1999
    Inventors: Thomas Charles Kowalski, Robert Wayne Pike