Patents by Inventor Leo E Hakka

Leo E Hakka 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 and apparatus for NOx and SO2 removal
    Patent number: 6872371
    Abstract: NO is removed from a gas stream by reacting NO with an absorbent to form a metal nitrosyl complex. The metal nitrosyl complex is reacted with sulfite and/or bisulfite to produce recoverable reaction products containing nitrogen and/or sulfur and to regenerate the reagent. The recoverable reaction products are then separated from the regenerated reagent.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: March 29, 2005
    Assignee: Cansolv Technologies Inc.
    Inventors: Leo E Hakka, Michel A. Ouimet