Prosecution Insights
Last updated: August 18, 2026

Examiner: MERTZ, PREMA MARIA

Tech Center 1600 • Art Units: 1643 1646 1674

This examiner grants 72% of resolved cases

Performance Statistics

71.6%
Allow Rate
+11.6% vs TC avg
788
Total Applications
+35.6%
Interview Lift
1012
Avg Prosecution Days
Based on 764 resolved cases, 2023–2026

Rejection Statute Breakdown

6.8%
§101 Eligibility
13.0%
§102 Novelty
23.7%
§103 Obviousness
45.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18495182 METHODS FOR TREATING OR PREVENTING ASTHMA BY ADMINISTERING AN IL-4R ANTAGONIST Final Rejection REGENERON PHARMACEUTICALS, INC.
18328327 INTERLEUKIN-2 PROPROTEINS AND USES THEREOF Non-Final OA Regeneron Pharmaceuticals, Inc.
18033464 ANTIBODIES FOR USE IN THE DETECTION AND TREATMENT OF HEART DISEASE Final Rejection BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18253017 TREATMENT OF CASTLEMAN DISEASE Non-Final OA THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
17755605 METHODS OF USING IL-33 ANTAGONISTS Non-Final OA MedImmune Limited

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