What is the duration of a utility patent?

The correct duration of a utility patent is 20 years from the filing date, which aligns with the correct choice. This period starts on the effective filing date of the application and continues until the patent expires, provided that maintenance fees are paid at required intervals to keep the patent in force.

The 20-year duration is established under U.S. patent law and is consistent with international norms established by the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS), which sets a minimum term for patent protection. This means that, once granted, the patent holder has exclusive rights to the patented invention for this duration, allowing them to prevent others from making, using, or selling the invention without permission.

Understanding this duration is key for inventors and businesses to protect their intellectual property effectively, plan product lifecycles, and strategize for market competition.