Patents by Inventor Harold D. Dial

Harold D. 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).

  • 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
  • Gellan gum sizing
    Patent number: 5112445
    Abstract: Surface sizes comprising 1) gellan gum and 2) one or more film-forming polymers such as chemically modified starch, cellulose derivatives, and polyvinyl alcohol are described. The compositions exhibit enhanced film-forming properties.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: May 12, 1992
    Assignee: Merck & Co., Inc.
    Inventors: Philip E. Winston, Jr., Harold D. Dial, Kenneth Clare, Theresa M. Ortega
  • Film-forming size composition
    Patent number: 5079348
    Abstract: A film forming composition useful as a paper size is described which includes 1-20 parts, preferably 2-15 parts, by weight of a gum selected from the group consisting of xanthan gum, rhamsan gum, welan gum and mixtures thereof; 3-20 parts, preferably 5-17 parts, by weight of a water soluble alginate; and 60-100 parts, preferably 70-90 parts, by weight of starch, polyvinyl alcohol or carboxymethylcellulose, with the gum:alginate ratio being not greater than 1:1, preferably not greater than 1:2. The balance of the composition will primarily be water. Additives such as sodium hexametaphosphate may also be present.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: January 7, 1992
    Assignee: Merck & Co., Inc.
    Inventors: Kenneth Clare, Philip E. Winston, Jr., Harold D. Dial, Theresa M. Ortega