cease and desist lettercease and desist letter: often arising in intellectual prope...: often arising in intellectual propertyintellectual property: a piece of work or a creation by th... disputes, a letter requiring a party to stop engaging in certain conduct, usually because that conduct infringes the writer’s legal rights; for example, in the context of intellectual propertyintellectual property: a piece of work or a creation by th... law, a cease and desist lettercease and desist letter: often arising in intellectual prope... may be appropriate where the owner of an intellectual propertyintellectual property: a piece of work or a creation by th... (IP) right, such as a trade marktrade mark: a symbol, most commonly used in conjunction with..., copyrightcopyright: the right to deal exclusively in certain types of... or patentpatent: an officially granted right or licence to exclusivel..., has identified that his IP rights are being infringed and wishes to formally demand the infringing party to cease and desist from any further infringing conduct.