A Standard Document that a patent owner may send notifying an alleged infringer of the existence and relevance of a patent, including a description of the alleged infringing activity. This Standard Document contains optional and alternative language that counsel may choose to request that the recipient cease and desist from engaging in infringing activities and provide certain remedies and assurances against further infringement or invite the recipient to suggest a mutually agreeable compromise. Counsel should tailor the letter to the facts and circumstances of the particular situation. This Standard Document has integrated notes with important explanations and drafting tips.