NDA (nondisclosure agreement) is a legal contract that protests sensitive information. NDA can be used when new product or design is in developing stage to help the inventor keep patent rights. Properly written NDA can help the inventor hold the rights to the specific product. In case when the product would be presented to the public, the inventor can lose his patent rights. Nondisclosure document specify which information are private and which are not. Many times the new hired employee must sign NDA to protect the sensitive information in the company. The patent gives the rights of the product to the inventor. Generally patent is given for 20 years in USA and can be issued by the United States Patent and Trademark Office.

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