Prosecution Insights
Last updated: October 02, 2026

Examiner: LOIKITH, CATHERINE A

Tech Center 4100 • Art Units: 3672 3674 3676 4100

This examiner grants 85% of resolved cases

Analysis

Catherine A. Loikith is an examiner in Tech Center 4100 and Art Unit 3672. She has a high volume of 988 resolved cases, resulting in an allowance rate of 85.0 percent. This rate indicates a very favorable probability of success for applications under her review. The median days to allowance of 912 shows a relatively efficient prosecution timeline. Practitioners should use this 912-day benchmark to plan for rapid patent issuance.

The interview lift of 7.7 percent shows a positive impact from direct communication. This 7.7 percent increase in the allowance rate, relative to the 85.0 percent base, suggests that interviews are a useful but not always necessary tool. With 988 resolved cases, the examiner's history in Art Unit 3672 is very stable. The 912 median days to allowance reflects the speed of the review process in Tech Center 4100. These metrics provide a clear and predictable path for applicants.

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

Performance Statistics

85.0%
Allow Rate
+25.0% vs TC avg
1,000
Total Applications
+7.7%
Interview Lift
912
Avg Prosecution Days
Based on 988 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
25.3%
§102 Novelty
45.7%
§103 Obviousness
24.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19239574 METHODS, APPARATUS AND SYSTEMS FOR CREATING WELLBORE PLUGS FOR ABANDONED WELLS Non-Final OA Schlumberger Technology Corporation
18777963 Tabbed Lid Opening Hand, Tabbed Lid Opening System, And Method Of Opening Tabbed Lid Non-Final OA SEIKO EPSON CORPORATION
19202467 INTERNAL SLIP DESIGN WITH MINIMUM BACKLASH FOR PACKERS SEAL ENHANCEMENT Non-Final OA Halliburton Energy Services, Inc.
18308079 DOWNHOLE DEVICE WITH BYPASS CAPABILITIES Non-Final OA Halliburton Energy Services, Inc.
18422119 Robot Gripper and Method of Using It Non-Final OA ABB Schweiz AG
18356930 END EFFECTOR CONNECTOR FOR A ROBOTIC MANIPULATOR Non-Final OA Ocado Innovation Limited

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