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For applications filed on or after June 8, 1995, utility and plant patents are granted for a term which begins with the date of the grant and usually ends 20 years from the date you first applied for the patent subject to the payment of appropriate maintenance fees. Design patents last 14 years from the date you are granted the patent. Note: Patents in force on June 8 and patents issued thereafter on applications filed prior to June 8, 1995 automatically have a term that is the greater of the twenty year term discussed above or seventeen years from the patent grant.
For applications filed on or after June 8, 1995, utility and plant patents are granted for a term which begins with the date of the grant and usually ends 20 years from the date you first applied for the patent subject to the payment of appropriate maintenance fees. Design patents last 14 years from the date you are granted the patent. Note: Patents in force on June 8 and patents issued thereafter on applications filed prior to June 8, 1995 automatically have a term that is the greater of the twenty year term discussed above or seventeen years from the patent grant.
==Controversy==
Patents are a distortion of the [[free market]], since they essentially create an artificial [[monopoly]] for the patent holder. Many economists believe that patents are a good idea nevertheless, because they encourage research and development and the products that result ultimately increase net welfare for consumers. Also, the details disclosed in a patent may lead to further improvement of a product by other inventors.
Some opponents of patents believe that any such distortion of [[free trade]] and other free market outcomes is automatically bad for society. Other critics believe that patents are too easily abused. "Patent trolls" may defend their patents not to protect their own interests in producing a product, but merely to harm competitors. Other critics of patents contend that the U.S. Patent and Trademark Office does a poor job of reviewing applications, often issuing patents that are too broad or that overlap previously patented inventions.
== References ==
== References ==