Prosecution Insights
Last updated: October 01, 2026

Examiner: MCFARLAND, KATHLEEN MAVOURNEEN

Tech Center 3600 • Art Units: 3635 3637

This examiner grants 59% of resolved cases

Analysis

Kathleen Mavourneen McFarland serves in Art Unit 3635 within Tech Center 3600. Across 158 resolved cases, she maintains an allowance rate of 58.9%. This percentage indicates that a majority of the applications she reviews eventually result in a patent grant. The median time required to reach such an allowance is 1310 days.

The data includes an interview lift of 12.9%, which suggests that applicants who engage in interviews see a higher probability of success than the 58.9% baseline. This lift provides a strategic reason to consider direct communication with the examiner. The 158 resolved cases offer a moderate data set for evaluating these trends in Tech Center 3600.

Prosecution timelines are defined by the 1310 days to allowance, which represents the median duration for successful applications. The 12.9% interview lift is a key metric for practitioners looking to improve upon the 58.9% allowance rate. These figures together suggest that while the process is lengthy, active engagement through interviews correlates with a positive outcome.

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

Performance Statistics

59.4%
Allow Rate
+7.4% vs TC avg
190
Total Applications
+13.2%
Interview Lift
1309
Avg Prosecution Days
Based on 160 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
26.9%
§102 Novelty
53.7%
§103 Obviousness
18.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18768226 FALL ARREST SYSTEM Non-Final OA Oshkosh Corporation
18510353 COLLAPSIBLE GUARDRAILS Final Rejection The Boeing Company
18324436 FALL PROTECTION SYSTEMS AND METHODS Final Rejection The Boeing Company
16599908 Harness With Adjustable Belt Strap Final Rejection MSA Technology, LLC
18362441 ATTACHMENT MECHANISMS AND SYSTEMS FOR USE WITH EDGE PROTECTION SYSTEMS Final Rejection Honeywell Safety Products USA, Inc.
18160233 RETRACTABLE LIFELINE APPARATUS AND METHOD OF USING THE SAME Non-Final OA Honeywell Safety Products USA, Inc.
18018806 SAFETY HARNESS WITH PSEUDO-CROSSOVER VENTRAL STRAPS Final Rejection 3M INNOVATIVE PROPERTIES COMPANY
18800060 Ladder Lockout Assembly Final Rejection Formetco, LLC

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