Legal Status / Examination Information


We will explain code value of the examination information / legal state in the " Advanced Patent Search".

Examiner's Decision

Search Field Name Examiner's Decision (US/JP)
Description of this field  Search a kind of examiner's decision.
Conditions Example
 Searching field for issued patents. 1

Final Decision

Search Field Name Final Decision (US/JP)
Description of this field Search a kind of examiner's final decision.
Example (U.S.)
A01 : Issued / Registered

Deletion of Registration

Search Field Name Deletion of Registration (US/JP)
Description of this field Search deletion or expiration of the patent registration.
Example (U.S.)
E1: Expired four(4) years after the initial issue date. R1: Reinstated after E1.
E2: Expired eight(8) years after the initial issue date. R3: Reinstated after E2
E3: Expired twelve(12) years after the initial issue date. R3: Reinstated after E3
* Input Format
- E1 (Exact Match)
- E*, R* (Wildcard, Forward Match)

Patent search method (Introduction).

Patent search method (Beginner).

Patent Search (Patent Database)

Patent Analysis