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:
Apr. 29, 2025
Filed:
Mar. 11, 2024
Institute of Advanced Sciences, Inc., North Dartmouth, MA (US);
Bal Ram Singh, Dartmouth, MA (US);
Raj Kumar, Dartmouth, MA (US);
Institute of Advanced Sciences, Inc., North Dartmouth, MA (US);
Abstract
Methods of making the M or L complex of the botulinum neurotoxin E with its associated neurotoxin binding protein(s) (NBP), and methods of using to treat pain and wrinkles by injecting locally. Methods of making and isolating the L and M complex comprise a multi-step process of: providing a bacterial cultured media comprising the complex of botulinum neurotoxin E and neurotoxin binding proteins; centrifuging and pelletizing the cultured media; stirring the pelletized culture at 0 to 10° C. over a period of 4 to 24 hours; centrifuging the stirred solution to obtain a supernatant; precipitating the supernatant and filtering to obtain the precipitate; and dissolving the precipitate, centrifuging and filtering to obtain a solution comprising M complex and/or L complex of botulinum neurotoxin E and its NBP; and passing the solution through a functionalized sephadex ion exchange column to isolate the complex.