About the Glossary
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
A patent (or a claim of a patent) may be held invalid if the claim language and/or the specification describes and/or claims an invention that simply does not work. In particular in the United States such a situation causes the patent (or the claim at issue) to be invalid under the utility requirements of §101 of the Patent Act and the description requirements of §112. Outside litigation, an innocent error in the specifications or drawings of a patent that render the patent nonsensical or inoperative can be corrected by a reissue of the patent with corrections; however the patent holder must surrender the patent during the reissue process.