According to Paragraph II of Rule 18 of the Enforcement Rules of the Patent Act, “an independent claim shall state the designation of the subject matter as claimed and the essential technical features of the invention that the applicant regards as his/her invention.” That is to say, the description of the designation of the subject matter in an independent claim shall be definite and shall not be too general and simple. Where the description of the designation of the subject matter in an independent claim is simply “an article”, “a device” or “a method,” such description is considered to be an indefinite description for the designation of the subject matter and does not comply with the requirements of the foregoing rule; the Taiwan Intellectual Property Office will require the applicant to file amendments based on Paragraph IV of Article 26 of the Patent Act and Paragraph II of Rule 18 of the Enforcement Rules of the Patent Act.