Patents by Inventor Antony R. Edwards

Antony R. Edwards 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).

  • Method for inhibiting hydrate formation
    Patent number: 5331105
    Abstract: A method for inhibiting or retarding gas hydrate formation comprises adding a solution of a compound of formula: ##STR1## wherein R=OH, OCH.sub.3, OC.sub.2 H.sub.5, NHNH.sub.2 or HR'=NH.sub.2 or NH.sub.3.sup.+X,Y,Z=H or OH, andn=a number in the range 0 to 6,or a polymer thereof when R'=NH.sub.2, the compound or polymer thereof being added in an amount effective to inhibit or retard hydrate formation, to a medium susceptible to gas hydrate formation, e.g. fluids produced from an oil well, particularly an offshore oil well.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: July 19, 1994
    Assignee: The British Petroleum Company p.l.c.
    Inventors: Simon N. Duncum, Antony R. Edwards, Christopher G. Osborne