Patent Introduction
Examination Time Frame
China
| Filings | Time Frame |
|---|---|
| Invention patent application | 18~36 months |
| Utility model patent application | 8~10 months |
| Technical evaluation report for utility model patent | 3~4 months |
| Design patent application | 4~6 months |
| Correction of patent claim, drawings and specification | 1~2 months |
| Recordal of assignment, license, pledge, trust of Patent rights | 2~4 months |
| Recordal of changes | 2~4 months |
| Issuance of English certification | 2~4 months |
| Issuance of priority documents | 2~4 months |
| Filings | Time Frame |
|---|---|
| Invention patent application | 12~30 months |
| Re-examination for invention patent application | 10~36 months |
| Application for extension of invention patent term | 12 months |
| Utility model patent application | 6 months |
| Technical evaluation report for utility model patent | 12 months |
| Design patent application | 12 months |
| Re-examination for design patent application | 10 months |
| Patent invalidation | 15 months |
| Correction of patent claim, drawings and specification | 6 months |
| Recordal of assignment, license, pledge, trust of Patent rights | 20 days |
| Recordal of changes | 20 days |
| Issuance of English certification | 20 days |
| Issuance of priority documents | 20 days |
