Patents by Inventor Matthew M. Walden

Matthew M. Walden 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: 6095246
    Abstract: A sand-bearing water-soluble stick is provided, which descends rapidly through a column of salt water in a well, allowing the efficient and accurate placement of a column of sand throughout a particular interval of downhole pipe. Methods of use are provided which include sand placement techniques utilizing the stick in typical oil and gas well applications. Sizing and shaping options are provided which assist the user in correlating the sticks to the appropriate piping. In the preferred embodiment, the stick is formed from sand and polyethylene glycol, although the stick can be made with solid materials other than sand, and with other water-soluble bonding agents.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: August 1, 2000
    Inventors: John D. Gray, Matthew M. Walden