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:
Jul. 23, 1996
Filed:
Feb. 13, 1995
Applicant:
Inventors:
Robert A Blanchette, Shoreview, MN (US);
Theresa S Brush, Burlington, MA (US);
Roberta L Farrell, Groton, MA (US);
Assignees:
Regents of the Univ. of Minnesota, Minneapolis, MN (US);
Sandoz Ltd., E. Hanover, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
A01G / ; A01C / ; C09K / ;
U.S. Cl.
CPC ...
427-4 ; 47 576 ; 106 1505 ; 252384 ; 424 7803 ; 424 7809 ; 424 7836 ; 424 7837 ; 427160 ; 514415 ;
Abstract
Compositions comprising melanin or melanin precursors are useful for preventing or controlling decay of substrates such as cellulosic and other porous organic substrates. The compositions provide useful wood preservatives, wound dressings, and the like. In one embodiment, the compositions comprise melanin complexed with metal ions, particularly copper. The compositions may be applied as penetrating or surface treatments. Certain melanins are also particularly useful for removing metal ions from liquids.