Prosecution Insights
Last updated: October 01, 2026

Examiner: SONIFRANK, RICHA MISHRA

Tech Center 2600 • Art Units: 2627 2654 2655 2673 2674

This examiner grants 67% of resolved cases

Analysis

Richa Mishra Sonifrank shows an allowance rate of 67.1 percent across 395 resolved cases. The median time to allowance for this examiner is 1107 days. In Art Unit 2627, interviews result in a 24.4 percent lift to allowance chances. This 24.4 percent lift is a significant factor for practitioners to consider when facing rejections in Tech Center 2600.

The 67.1 percent allowance rate provides a baseline for expected outcomes. The 1107-day median pendency indicates the typical duration of successful prosecution. Because the interview lift is 24.4 percent, direct engagement with the examiner may be more effective than written responses alone. This strategy can help navigate the specific requirements of Art Unit 2627.

With 395 resolved cases, the data offers a reliable view of the examiner's tendencies. Practitioners should factor the 1107-day timeline into their long-term planning. The 67.1 percent allowance rate and the 24.4 percent interview lift are the primary metrics for developing a prosecution strategy.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

67.1%
Allow Rate
+5.1% vs TC avg
418
Total Applications
+24.4%
Interview Lift
1107
Avg Prosecution Days
Based on 395 resolved cases, 2023–2026

Rejection Statute Breakdown

15.4%
§101 Eligibility
8.7%
§102 Novelty
63.3%
§103 Obviousness
8.1%
§112 Clarity

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