Prosecution Insights
Last updated: October 02, 2026

Examiner: WELCH, JENNIFER N

Tech Center 4100 • Art Units: 2100 2125 2126 2141 2143 2145 2147 2148 2187 2195

This examiner grants 74% of resolved cases

Analysis

Jennifer N. Welch manages a substantial portfolio in Art Unit 2100, having resolved 356 cases. The allowance rate of 74.2 percent indicates a generally receptive approach to patentability within Tech Center 4100. However, the median days to allowance of 1597 suggests a lengthy prosecution process that applicants should prepare for when filing. This duration is a significant factor in long-term patent strategy.

The interview lift of 28.1 percent is a critical metric for practitioners. It demonstrates that verbal communication with the examiner provides a meaningful boost to the 74.2 percent baseline allowance rate. Given the pendency of 1597 days, early interviews may be a useful tool to streamline the path to grant and resolve technical issues more quickly. The data supports a proactive approach where interviews are used to bridge the gap between initial rejection and final allowance. This examiner's history shows that while the process involves many days, the likelihood of success remains high for those who engage effectively. The 356 resolved cases provide a stable basis for these strategic considerations.

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

Performance Statistics

74.2%
Allow Rate
+14.2% vs TC avg
368
Total Applications
+28.1%
Interview Lift
1598
Avg Prosecution Days
Based on 357 resolved cases, 2023–2026

Rejection Statute Breakdown

17.8%
§101 Eligibility
15.9%
§102 Novelty
39.9%
§103 Obviousness
19.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17965324 INFERENCE DEVICE, NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM, AND INFERENCE METHOD USING A KNOWLEDGE BASE Final Rejection MITSUBISHI ELECTRIC CORPORATION
17808143 COMPOSING A MACHINE LEARNING MODEL FOR COMPLEX DATA SOURCES Final Rejection International Business Machines Corporation
17442403 AUTOMATIC EXTRACTION OF ASSETS DATA FROM ENGINEERING DATA SOURCES Final Rejection Schneider Electric Systems USA, Inc.

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