The Indian Patent Office is administered by the Office of the Controller General of Patents, Designs & Trade Marks (CGPDTM). This is a subordinate office of the Government of India and administers the Indian law of Patents, Designs and Trade Marks.
The CGPDTM reports to the Department of Industrial Policy and Promotion(DIPP) under the Ministry of Commerce and Industry and has five main administrative sections:
The patent office is headquartered at Kolkata with branches in Chennai, New Delhi and Mumbai, but the office of the CGPDTM is in Mumbai. The office of the Patent Information System and National Institute for Intellectual Property Management is at Nagpur. The Controller General (CG), who supervises the administration of the Patents Act, the Designs Act, and the Trade Marks Act, also advises the Government on matters relating to these subjects. O.P. Gupta is the current CG and took charge on 16 November 2015. Under the office of CGPDTM, a Geographical Indications Registry has been established in Chennai to administer the Geographical Indications of Goods (Registration and Protection) Act, 1999.
The Indian Patent Office has 526 Patent Examiners, 97 Assistant Controllers, 42 Deputy Controllers, 1 Joint Controller, and 1 Senior Joint Controller, all of whom operate from four branches. Although the designations of the Controllers differ, all of them (with the exception of the Controller General) have equal authority in administering the Patents Act. An Indian Patent Examiner is mandated to search for prior art and for objections under any other ground as provided in the Patent's Act, then to report to the Controller, who has the power to either accept or reject Examiners' reports. Unlike the system at the USPTO /EPO/JPO, Examiners at IPO have only recommending power and the controllers are empowered by statute either to accept or refuse their recommendations. Examiners' reports to the Controller are not open to the public unless courts allow it (section 144 of the Patents Act). A Parliamentary committee has recommended repealing S144.
Amendments (in 1999, 2002, 2005) were necessitated by India's obligations under TRIPS, allowing product patents in drugs and chemicals. A pre-grant representation in addition to the existing post-grant opposition has been re-introduced. A provision of later amendments was on software patent-ability, which was later withdrawn in another amendment in 2005. The amendment in 2012 focused on change in marks of Patent Agent Examination.