Estimate patent application costs including USPTO fees, attorney drafting, patent search, prosecution, and maintenance for utility and design patents.
The Patent Filing Cost Calculator provides a comprehensive estimate of the total investment required to file and prosecute a patent application through the United States Patent and Trademark Office (USPTO). This includes official filing, search, and examination fees, patent attorney drafting and prosecution, a prior art search, and 20-year maintenance fees.
Patent protection transforms inventions into valuable intellectual property assets. Utility patents protect how an invention works for 20 years, while design patents protect ornamental appearance for 15 years. However, the patent process is expensive and complex, with total costs varying significantly based on technology complexity and prosecution path.
This calculator helps inventors, startups, and IP teams budget for patent protection by modeling costs across the complete patent lifecycle.
Legal professionals, business owners, and individuals alike benefit from transparent patent filing cost calculations when evaluating obligations, settlements, or compliance requirements. Bookmark this page and return whenever circumstances change so you always have current figures at your fingertips.
Patent costs are front-loaded but provide 15–20 years of protection. Understanding the full cost spectrum — from provisional filing through maintenance — enables strategic IP budgeting and informed decisions about which inventions to protect. Instant recalculation as you change inputs lets you model multiple scenarios quickly, giving you the data foundation needed for well-informed legal and financial decisions.
Filing Cost = USPTO Fees + Attorney Drafting + Prior Art Search Prosecution = Office Action Responses × Response Cost Maintenance = 3.5-yr + 7.5-yr + 11.5-yr fees Total = Filing + Prosecution + Issue Fee + Maintenance
Result: $27,400 total 20-year cost
Filing: $1,600 + $8,000 + $2,000 = $11,600. Prosecution: $3,000. Issue: $1,200. Maintenance (3.5yr $1,600 + 7.5yr $3,600 + 11.5yr $6,400): $11,600. Total: $27,400.
Utility patents protect functional inventions (methods, machines, compositions) for 20 years from filing. Design patents protect ornamental appearance for 15 years from grant. Plant patents protect asexually reproduced plant varieties for 20 years. Most businesses need utility patents for core technology.
Claim small entity or micro entity status for fee reductions of 50–75%. File provisionals strategically. Focus claims on commercially valuable aspects. Use continuation applications judiciously. Consider international filing priorities carefully.
Not every invention merits patent protection. Evaluate each invention's commercial value, enforceability, and competitive landscape. A focused portfolio of strong patents provides better protection than a large portfolio of weak ones.
A utility patent typically costs $10,000–$20,000 for filing and prosecution, plus $11,600 in maintenance fees over 20 years. Simple inventions are at the low end, while complex software or biotech patents can exceed $30,000.
Design patents are simpler and cheaper, typically costing $2,000–$5,000 for attorney drafting and filing. USPTO fees are lower ($1,020 total for filing, search, and examination for large entities). No maintenance fees are required.
Utility patents require maintenance fees at 3.5 years ($1,600), 7.5 years ($3,600), and 11.5 years ($6,400) after issue (large entity). Failure to pay results in patent expiration. Design patents have no maintenance fees.
Average prosecution takes 2–3 years from filing to issuance. Complex technologies or crowded art fields may take 4–5 years. Accelerated examination (Track One) can reduce this to 6–12 months for an additional fee.
Provisional applications are ideal when you need early priority date protection at low cost. They buy 12 months to refine the invention, seek funding, or assess market viability before committing to full non-provisional filing costs.
Pro se filing is possible but not recommended. Patent claims require precise legal language, and improperly drafted claims may fail to protect the invention. The long-term cost of inadequate protection far exceeds attorney fees.