Patents by Inventor Mark R. Howson

Mark R. Howson 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).

  • Removal of sulfides using chlorite and an amphoteric ammonium betaine
    Patent number: 5082576
    Abstract: This invention relates to a composition suitable for use in process for the removal of sulfides, especially hydrogen sulfide from a feed contaminated therewith. The composition comprises an aqueous solution of a chlorite and a corrosion inhibitor which is an amphoteric ammonium compound of the formula ##STR1## as herein defined. The inhibitor mitigates problems of corrosion associated with chlorite scavengers.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: January 21, 1992
    Assignee: BP Chemicals Limites
    Inventor: Mark R. Howson