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:
Feb. 20, 1990
Filed:
Nov. 18, 1988
Applicant:
Inventor:
Toshihiro Watanabe, Tokyo, JP;
Assignee:
Sankyo Kogyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C10H / ; C01B / ; C01C / ;
U.S. Cl.
CPC ...
4232451 ; 4232452 ; 423228 ; 423238 ;
Abstract
The present invention relates to for deodorizing and cleaning offensive gas which comprises treatment with a lignin solution after washing the gas to remove basic offensive ingredients. The method is excellent in efficiency of deodorization and maintenance cost especially for offensive odor ingredients that are hard to decompose.