The length of a patent's life can vary, but generally, it lasts for 20 years from the date of filing, as long as the maintenance fees are paid. The duration can differ depending on the type of patent, for instance, design patents usually last for 15 years from the grant date, while utility patents, which are the most common type, last for 20 years. It's also worth mentioning that some countries have different patent durations, so it's essential to check the specific laws and regulations of the country where you're seeking patent protection.
