Definition of Opposition Investigation：
In order to oppose an existing patent, one can obtain the preliminary search keywords of the report investigation and then obtain the target patents through the analysis and comparison of patents vs. patents, and the deduction, correction, and induction of keywords are continued to obtain the desired target patents. The process needs to be read from the derived subject patent.
Key for Opposition Investigation：
Detailed reading, obtain opposition investigation keywords, opposition investigation keyword suggestions, logical inferences and experience orientation.
HOW：
The ExPER tool by InSearchIP comprehensive reading aid system , continuing the goal of “assisting reading”, providing the most detailed graphic and text display, which is relatively easy to read the detail, can draw keywords of opposition investigation and the target patent correctly, perfect satisfaction is guaranteed to our customers.
Efficacy of ExPER tool：
As reading becomes easy, effective, correct, and relaxed, the reading becomes correct, easy, and efficient when receiving the subject patent in the regular investigation. The judgment of the performer will become more accurate.
