How to inquire about the international patent number? Please help me check whether the following is true and what kind of invention it is.
Is it 1? PCT2004/Zn00 15 14 indicates that the error should be PCT/cn2004/001514 is an international pct patent, and the applicant is Dai Minghua, Hebei province, and its name is myopia prevention device. 2. 10/584.355 is an American invention patent, granted on May 2, 20 10. The applicant is Dai Minghua from Hebei.