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While both a copyright and a trademark are intellectual property that will be encountered by the formulator, they protect fundamentally different rights. The two stand separately in law, and one does not preclude the other.
Copyrights protect the expression of an idea as provided by the laws of the United States (title 17, U.S. Code) to the authors of “original works of authorship,” including literary, dramatic, musical, artistic and certain other intellectual works. This protection is available to both published and unpublished works.
A copyright gives the owner the following exclusive rights.
The exclusive right of the copyright cannot be used against one who independently creates an identical work. Sometimes both a patent and a copyright may be applied for on different aspects of the same work. An example is a computer which may have a patent that protects the hardware and a copyright that protects the program to operate the computer. The current term of a copyright in the United States is 50 years after the death of the author or of the last author if more than one author exists.
Trademarks are any word, name, symbol or device used by an individual or corporation to distinguish its product from others. A trademark only prevents use of the trademark not of the invention. A trademark must be distinctive and not merely descriptive or generic. Apple successfully functions as a trademark for computers but is generic to that fruit. Sometimes a trademark becomes generic and is lost. Elevator and escalator were once trademarks, which eventually came to describe the product rather than to identify the source of the product.