"Enlightenment" and "easy to think" are commonly used tricks in invalidation, but in fact they are "obvious" in the examination guide. Although the exam guide gives an "obvious" identification method, it will make the defense easier if you can draw the following two points according to the comparison:
1, and the existing technical scheme draws the opposite conclusion;
2. The existing technical scheme may not necessarily lead to the technical scheme of this patent, and there are many technical schemes given, which solve different problems and have different technical effects.