Patent
Costs

The costs of preparing and filing a patent application, prosecuting it until grant and maintaining the patent vary from one jurisdiction to another, and may also be dependent upon the type and complexity of the invention, and on the type of patent.

The European Patent Office estimated in 2005 that the average cost of obtaining a European patent (via a Euro-direct application, i.e. not based on a PCT application) and maintaining the patent for a 10-year term was around €32,000. Since the London Agreement entered into force on May 1, 2008, this estimation is however no longer up-to-date, since fewer translations are required.

After a patent is issued, in most countries patent maintenance payments are required. In some countries (e.g. Russia) fees are due every year, and the amount due does not change much. In other countries (e.g. US) payments are due ca. every 4th year after the grant date, and the amount due increases every time. A 2023 study by Rochester Institute of Technology found the full term maintenance rate of issued US patents has been fairly constant (40-50%) since 1992. Full term patents have more issued claims and receive on average more citations than earlier expired patents.

The European Patent Office charges annual fees for pending applications. Also, between 2012 and 2016 Ecuador increased its patent maintenance fees ten-fold, briefly becoming the most expensive country to maintain patents.

In the United States, in 2000 the cost of obtaining a patent (patent prosecution) was estimated to be from $10,000 to $30,000 per patent. When patent litigation is involved (which in year 1999 happened in about 1,600 cases compared to 153,000 patents issued in the same year), costs increase significantly: although 95% of patent litigation cases are settled out of court, those that reach the courts have legal costs on the order of a million dollars per case, not including associated business costs.
oulipo:avoid_letter[o]