Drug – bio-affecting and body treating compositions – Extract – body fluid – or cellular material of undetermined... – Tissue – other than lymphoid tissue
Reexamination Certificate
2007-06-19
2007-06-19
Pak, John (Department: 1616)
Drug, bio-affecting and body treating compositions
Extract, body fluid, or cellular material of undetermined...
Tissue, other than lymphoid tissue
C424S520000, C424S522000, C424S543000, C424S572000, C424S601000, C424S641000, C424S642000, C424S643000, C424S688000, C424S724000, C514S055000, C514S769000, C514S772000
Reexamination Certificate
active
10940998
ABSTRACT:
A composition contains an inorganic substance obtained as a residue after incinerating skins of marine organisms, and chitin/chitosan. The composition is obtained by incinerating the skins of the marine organisms at a temperature within a range between 600° C. and 1000° C. to obtain the inorganic substance as a residue, obtaining a powdered inorganic substance from the inorganic substance, and kneading the powdered inorganic substance with chitin/chitosan powder.
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Malafaya et al., “Porous Bioactive Composites from Marine Origin Based in Chitosan and Hydroxylapatite Particles,” Key Engineering Materials, vols. 240-242, 2003, pp. 39-42.
Hiroyuki et al, “Separationo f hydroxyapatite from scales of fish,” Database Compendex Online, XP002308478, Engineering Information, Inc., 1996.
Foley & Lardner LLP
Matsumoto Dental University
Pak John
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