Patents by Inventor Umesh P. Aher

Umesh P. Aher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Polymorph of (1-benzyl-4-[(5,6-dimethoxy-1-indanone)-2-y1] methyl piperidine hydrochloride (Donepezil hydrochloride) and a process for producing thereof

Patent number: 7186842

Abstract: The present invention discloses a novel, stable polymorph of 1-benzyl-4-[(5,6-dimethoxy-1-indanone)-2-yl] methyl piperidine hydrochloride commonly known as Donepezil hydrochloride. Further the present invention discloses a process for producing Donepezil HCl amorphous and its polymorph Form (VI).

Type: Grant

Filed: June 3, 2005

Date of Patent: March 6, 2007

Assignee: USV, Ltd.

Inventors: Umesh P. Aher, Venkatasubramanian R. Tarur, Dhananjay Govind Sathe, Avinash Venkataraman Naidu, Kamlesh Digambar Sawant

Polymorph of (1-benzyl-4-[(5,6-dimethoxy-1-indanone)-2-y1] methyl piperidine hydrochloride (Donepezil hydrochloride) and a process for producing thereof