Patents by Inventor Peter H. Fairchild

Peter H. Fairchild 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).

  • High solids bentonite slurries and method for preparing same
    Patent number: 6399544
    Abstract: Pumpable and flowable bentonite clay slurries having a bentonite solids content of about 50% or greater have been prepared for the first time through the use of a non-aqueous fluidizing agent, characterized by being a highly-saturated hydrocarbon oil with low affinity for reactivity with bentonite or other hydrophilic swelling agents such as starches, guars and xanthans. The slurries are useful in the economical transport of bentonite without impairing its swellability in aqueous media in applications such as mining, papermaking and oil drilling.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: June 4, 2002
    Inventors: Peter H. Fairchild, Ian R. Fairchild