Patent Filing in India: Cost and Timeline for Foreign Applicants
Patent prosecution in India commonly takes 3 to 5 years from filing to grant, foreign applicants filing via the PCT national phase face additional procedural steps beyond a direct Indian filing.
Patent examination in India is thorough and, compared to some jurisdictions, slower, average time from filing a Request for Examination to grant commonly runs 3 to 5 years, though this varies significantly by technology area and whether expedited examination is available and pursued (available in specific circumstances, including for startups and small entities, and increasingly for certain other categories).
Foreign applicants most often enter via the PCT (Patent Cooperation Treaty) national phase, which must be filed within 31 months of the original priority filing date, missing this window forfeits the ability to seek patent protection in India for that invention entirely, a hard deadline worth calendaring carefully alongside other jurisdictions' national phase deadlines.
Cost is driven primarily by attorney fees for drafting responses to examination reports (India's patent office frequently raises objections requiring substantive written responses) rather than official government fees, which are comparatively modest. Budgeting for at least 2 to 3 rounds of examination response over the prosecution timeline is realistic for most applications.