Patents by Inventor Stephen Clifford Poole

Stephen Clifford Poole 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 inhibition of oxygen corrosion in aqueous systems by the use of a tannin activated oxygen scavenger
    Patent number: 5830383
    Abstract: A method of treating an aqueous system is described which comprises incorporating in the system a hydroxylamine derivative of the general formula: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 which may be the same or different represents hydrogen, alkyl of 1 to 8 carbon atoms or aryl or a water soluble salt thereof or a precursor thereof, and a tannin in a weight ratio of at least 2:1. This is particularly useful for boiler water systems.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: November 3, 1998
    Assignee: BetzDearborn Inc.
    Inventors: Brian Greaves, Stephen Clifford Poole, Chih Ming Hwa, Joseph Chwei-Jer Fan