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Ipglossary.com is a practical glossary for managers, executives and technologists as well as lawyers working in IP in an international environment. The glossary provides practical explanations of key legal and business terms in a large number of technology related fields including intellectual property, licensing, venture capital, corporate and securities law, antitrust and competition law, and of course terms relevant to technology, in general. Read more

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Warning Letter

A letter warning someone that he or she is or may be infringing intellectual property rights. Such a letter should be carefully drafted and timed because of the risk of providing grounds for a declaratory judgment action, as well as the risk of a suit for wrongful threats. A typical patent warning letter will usually include a claim chart. It may also include a demand that the recipient “cease and desist” from infringing the sender’s intellectual property rights, in which case it is also called a “cease and desist letter” or a letter of protest.

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