The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 1992
Filed:
Sep. 27, 1990
Applicant:
Inventor:
Joseph F Long, Austin, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ;
U.S. Cl.
CPC ...
423235 ; 423242 ;
Abstract
A method wherein a boiler stack may be retrofitted for sulfur dioxide removal with ammonium sulfite scrubbing and nitrogen oxide reduction by reaction with chelated iron, and wherein a nitrogeneous fertilizer fortified with chelated iron is produced and stored in a cooling pond for sale as a 50% solution.