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:
Dec. 10, 2002
Filed:
Feb. 21, 2002
Applicant:
Inventors:
Sanjeev Redkar, Union City, CA (US);
Ashok Gore, San Ramon, CA (US);
Assignee:
Super Gen, Inc., Dublin, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 3/14738 ; C07D / ;
U.S. Cl.
CPC ...
A61K 3/14738 ; C07D / ;
Abstract
A polymorphic form of 9-nitrocamptothecin is provided, the polymorph being characterizable as having, by differential scanning calorimetry, an endotherm at between 175.5 and 177.5° C., an exotherm at between 181.7 and 183.7° C., and an IR spectrum with no absorption centered between 3625 cm and 3675 cm .