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:
Oct. 21, 1997
Filed:
Dec. 16, 1994
Yoshihiro Ikeuchi, Sayama, JP;
Takafumi Yakabe, Kawagoe, JP;
Abstract
An amorphous sialic acid powder is disclosed. It is prepared by rapidly freezing an aqueous solution of sialic acids and freeze-drying the frozen product. It has a melting point of 131.degree.-136.degree. C. (decomposed) and exhibits no peaks inherent to crystals in differential scanning thermal analysis (at 165.degree.-200.degree. C.) and X-ray diffractiometric pattern (in the range of 5.degree..ltoreq.2.theta..ltoreq.40.degree.). The amorphous sialic acid powder is highly reactive and can be used as a raw material for drugs and the like.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile