Patents by Inventor Harold Dean Dial

Harold Dean Dial 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).

  • Stable suspension of hydrocolloids
    Patent number: 6221152
    Abstract: The present invention comprises a stable hydrocolloid welan gum in which a hydrocolloid, preferably welan gum, is uniformly dispersed in a superplasticizer such as sulfonated naphthalene, sulfonated melamine, modified lignosulfate, their derivatives and mixtures thereof. This is then dispersed in a rheological control agent which is a microbially-produced cellulose fiber composition. The composition is rapidly hydratable and useful as a stabilizing additive in many cement and drilling fluid applications, insulation fluids and de-icer compositions.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: April 24, 2001
    Assignee: CP Kelco U.S., Inc.
    Inventors: Harold Dean Dial, Crawford Bryan Skaggs, Walter Gregory Rakitsky
  • Stable suspension of hydrocolloids
    Patent number: 6117226
    Abstract: The present invention comprises a stable hydrocolloid composition in which a hydrocolloid, preferably welan gum, is uniformly dispersed in a superplasticizer such as sulfonated naphthalene, sulfonated melamine, modified lignosulfate, their derivatives and mixtures thereof. This is then dispersed in a rheological control agent which is a microbially-produced cellulose fiber composition. The welan gum is rapidly hydratable and useful as a stabilizing additive in many cement and drilling fluid applications, insulation fluids and de-icer compositions.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: September 12, 2000
    Assignee: Pharmacia Corporation
    Inventors: Harold Dean Dial, Crawford Bryan Skaggs, Walter Gregory Rakitsky