1 has different meanings.
Patent publication number refers to the number provided by the patent office when the invention patent is published after preliminary examination.
Patent number refers to the number provided by the patent office when the patent is fully authorized after examination.
2. Being in different times.
Call the patent application number before patent authorization.
It is called patent number after authorization.
3. Different ingredients
The composition of patent publication number is "country number+classification number+serial number+identification code", such as CN 1340998A.
The patent announcement number is different from the patent announcement number, and the last letter is B.
Baidu encyclopedia-patent number
Baidu Encyclopedia-Patent Publication Number