Rule 113¹⁴⁵
Signature, name, seal

(1) Any decisions, summonses, notices and communications from the European Patent Office shall be signed by, and state the name of, the employee responsible. 

(2) Where a document referred to in paragraph 1 is produced by the employee responsible using a computer, a seal may replace the signature. Where the document is produced automatically by a computer, the employee's name may also be dispensed with. The same shall apply to pre-printed notices and communications.