Appeal No. 96-0920
Application 08/186,343
THE INVENTION
Appellants' invention is directed to a method of removing selenium, including selenium oxide
from a waste solution by reducing selenium oxide with carbohydrazide to elemental selenium.
THE CLAIMS
Claim 2 is illustrative of appellants' invention and is reproduced below.
2. A method of removing selenium from a waste solution including selenium oxide comprising
reducing the selenium oxide with carbohydrazide, thereby precipitating elemental selenium.
THE REFERENCES OF RECORD
As evidence of obviousness, the examiner relies upon the following references.
Vaaler 2,835,558 May 20, 1958
Elfline 4,678,584 July 7, 1987
Marcantonio 4,915,928 Apr. 10, 1990
Bossler et al. (Bossler) 5,108,624 Apr. 28, 1992
THE REJECTIONS
Claims 2, 4 through 8, 12 through 15, and 17 through 20 stand rejected under 35 U.S.C.
§ 103 as being unpatentable over Elfline in view of Bossler.
Claim 3 stands rejected under 35 U.S.C. § 103 as being unpatentable over Elfline in view of
Bossler as applied to claims 2, and further in view of Vaaler.
allowable. Hence the claims remaining for decision are 2 through 8 and 12 through 20.
2
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