Patents by Inventor D. Jack Royer

D. Jack Royer 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: 4693321
    Abstract: Polymeric flow improvers, whether alone or partially dissolved in a solvent, are encapsulated to provide a free flowing particulate powder which can be easily transported and subsequently placed into hydrocarbons wherein the outer shelf of the encapsules are subjected to melting, shear, dissolution, or the contents may be leached out to place the flow improver into intimate contact with the flowing hydrocarbons in a dispersed form such that drag reduction is immediate and effective. Optionally, the size of the particulate matter and the thickness of the encapsulating material are varied such that constant or delayed release of flow improver occurs as the hydrocarbon fluid is transported through conduits.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: September 15, 1987
    Assignee: Conoco Inc.
    Inventor: D. Jack Royer