It’s very simple. What you have is what others have applied for. What you don’t have is what you have innovated.
The two are separated by "characterized by".
For example, if you invent a cup with a handle, which was just a cup body before, then the most technical feature is the cup body, that is, the existing technology is the cup body. Your distinguishing technical features It's the cup handle. As for whether the innovation is sufficient or not, it is not you who has the final say, it is the examiner who has the final say. Authorization can be granted if the reviewer considers the improvement to be significant.