Brainscape 17. what is the standard duration of patent protection in the united states? a. 14 years from the application date b. 14 years from the date the patent is granted c. 20 years from the application date d. 20 years from the date the patent is granted

Explanation:

Utility patents in US are granted for 20 years. The time period is counted from the date of filing of application. Periodic fees are paid to maintain the executability of the patent.  Design patents are grants protection for 14 years.  It is measured from the date the design patent is granted. While a US trademark lasts as long as trademark is used in the commerce and defended from infringement.