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:
Aug. 27, 2013
Filed:
Nov. 30, 2010
Mohannad Shawer, Webster, NY (US);
Eric Phillips, Ontario, NY (US);
Harry M. King, Jr., Webster, NY (US);
Mohannad Shawer, Webster, NY (US);
Eric Phillips, Ontario, NY (US);
Harry M. King, Jr., Webster, NY (US);
Bausch & Lomb Incorporated, Rochester, NY (US);
Abstract
Amorphous solid-state form of (R)-(+)-7-(3-amino-2,3,4,5,6,7-hexahydro-1H-azepin-1-yl)-1,4-dihydro-4-oxoquinoline-3-carboxylic acid is characterized by at least one of: (a) an X-ray powder diffraction ('XRPD') spectrum that comprises peaks at 2θ angles of 6.9-7.1, 9.4, 10.6-10.7, and 13.4-13.7°±0.2°, and a diffuse halo pattern at 11-30°; and (b) a DSC (differential scanning calorimetry) melting peak at about 267-272° C. The amorphous solid is prepared by rapid precipitation from a saturated or supersaturated solution of besifloxacin free base in a solvent comprising at least benzyl alcohol.