Rigel Pharmaceuticals, Inc. (Rigel), incorporated in June 1996, is a clinical-stage drug development company. The Company discovers and develops small-molecule drugs for the treatment of inflammatory/autoimmune diseases, as well as for certain cancers and metabolic diseases. Its research focuses on intracellular signaling pathways and related targets that are critical to disease mechanisms. The Company has product development programs in inflammatory/autoimmune diseases, such as rheumatoid arthritis, thrombocytopenia and asthma, as well as in cancer.
Rigel Pharmaceuticals, Inc. filed patent application numbered 4864/DELNP/2009 that is titled N3-HETEROARYL SUBSTITUTED TRIAZOLES AND N5-HETEROARYL SUBSTITUTED TRIAZOLES USEFUL AS AXL INHIBITORS. This patent application has been granted as Patent Number 307195.
The invention covers chemical compounds. N3 -Heteroaryl substituted triazoles and N5 -heteroaryl substituted triazoles and pharmaceutical compositions containing the compounds are disclosed as being useful in inhibiting the activity of the receptor protein tyrosine kinase Axl. Methods of using the compounds in treating diseases or conditions associated with Axl activity are also disclosed.
During patent examination, the patent examiner raised objections under Section 3(d) of the Indian Patents Act, wherein the examiner stated that the Claim(s) (1-25) are statutorily non-patentable. Further, the present compounds do not differ significantly in properties with regard to efficacy with respect to the known compounds. Thus in the absence of the same it thus appears to be new use of known substance.
As a response, applicant proved using legal arguments under the provisions of law.
Advocate Rahul Dev is a Patent Attorney & International Business Lawyer practicing Technology, Intellectual Property & Corporate Laws. He is reachable at rd (at) patentbusinesslawyer (dot) com & @rdpatentlawyer on Twitter.
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