Examiner: TSUI, ALFRED H

Analysis

Alfred H Tsui, an examiner in Art Unit 3621, has resolved 205 cases. The allowance rate is 32.7 percent, which is lower than many other examiners in Tech Center 3600. However, the interview lift is 32.8 percent, suggesting that an interview significantly increases the chances of allowance compared to the baseline. This 32.8 percent lift is a critical strategic insight for practitioners facing a rejection from this examiner.

The median days to allowance is 1553. This long pendency and the 32.7 percent allowance rate indicate a challenging prosecution environment that requires persistence. Practitioners should use the 1553-day median to manage client expectations regarding the timeline for applications. Given the 205 resolved cases, the data suggests that while the path to allowance is long, the significant benefit of an interview cannot be overlooked. Strategy should focus on early engagement to overcome the low baseline probability.