Prosecution Insights
Last updated: October 02, 2026

Examiner: SPENCER, MAXIMILIAN TOBIAS

Tech Center 3700 • Art Units: 3771 3774 3796

This examiner grants 33% of resolved cases

Analysis

Maximilian Tobias Spencer works in Tech Center 3700 and Art Unit 3771, with 67 resolved cases. The allowance rate of 32.8% suggests a difficult prosecution environment. This is accompanied by a median days to allowance of 1134, providing a standard timeline for successful applications. The 67 resolved cases reflect a consistent pattern of rigorous examination.

The interview lift of 31.6% is a very important metric for applicants. This lift significantly increases the probability of success when compared to the 32.8% base allowance rate. For the 67 resolved cases, the data shows that interviews are a highly effective way to resolve rejections. Practitioners should not rely on written arguments alone when facing the 32.8% allowance rate. Instead, they should leverage the 31.6% lift to address the examiner's concerns directly. The 1134 days to allowance remains the primary benchmark for pendency, but the interview is the most effective tool for reaching that goal. Direct communication is a vital part of a successful strategy.

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

Performance Statistics

32.8%
Allow Rate
-37.2% vs TC avg
115
Total Applications
+31.6%
Interview Lift
1134
Avg Prosecution Days
Based on 67 resolved cases, 2023–2026

Rejection Statute Breakdown

1.6%
§101 Eligibility
17.2%
§102 Novelty
63.0%
§103 Obviousness
17.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18305136 PROSTHETIC VALVE DOCKING DEVICE Non-Final OA EDWARDS LIFESCIENCES CORPORATION
17671180 PROSTHETIC HEART VALVES Non-Final OA Edwards Lifesciences Corporation
17849534 System and Method for an Improved Redundant Crossfire Circuit in a Fully Integrated Neurostimulation Device and Its Use in Neurotherapy Final Rejection Regents of the University of Minnesota
18730946 VALVE SKIRTS FOR PROSTHETIC DEVICES Non-Final OA Medtronic, Inc.
17762839 ANCHORS FOR MITRAL CHORDAE REPAIR Final Rejection W. L. Gore & Associates, Inc.
17917165 METHOD OF ADDITIVE LAYER MANUFACTURING Final Rejection CAMBRIDGE ENTERPRISE LIMITED
18249938 SOLUTION ELECTROWRITING Non-Final OA CORNELL UNIVERSITY

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