Prosecution Insights
Last updated: October 01, 2026

Examiner: LOTTER, DAVID E

Tech Center 2800 • Art Units: 2821 2844 2845

This examiner grants 85% of resolved cases

Analysis

David E. Lotter is an examiner in Art Unit 2821 of Tech Center 2800. Across 612 resolved cases, the examiner has established an allowance rate of 84.8 percent. This high rate indicates a favorable environment for patent grants within this specific unit. Practitioners can view the 84.8 percent allowance rate as a sign of a relatively smooth path to issuance for applications that meet the necessary technical standards.

The interview lift for this profile is 9.6 percent. This suggests that conducting an interview provides a measurable benefit, though the high baseline allowance rate remains the primary driver of success. The 9.6 percent lift indicates that verbal engagement can help resolve remaining issues, even when the overall probability of allowance is already high. Practitioners should evaluate the need for an interview based on the complexity of the specific rejections received.

The median days to allowance is 818. This timeline is relatively efficient, showing that successful applications often reach a grant in under three years. The combination of an 84.8 percent allowance rate and an 818-day median suggests a streamlined prosecution experience. These metrics allow for precise planning and help in managing client expectations regarding both the likelihood and timing of a patent grant.

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

Performance Statistics

84.8%
Allow Rate
+16.8% vs TC avg
624
Total Applications
+9.6%
Interview Lift
818
Avg Prosecution Days
Based on 612 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
20.0%
§102 Novelty
53.9%
§103 Obviousness
18.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19259757 VEHICLE ANTENNA DEVICE AND METHOD FOR OPERATING SAME Non-Final OA Samsung Electronics Co., Ltd.
19077839 ELECTROMAGNETIC WAVE CONTROL ELEMENT Non-Final OA FUJIFILM Corporation
18925273 COMMUNICATION METHOD AND COMMUNICATION APPARATUS Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18920453 POSITIONING METHOD AND COMMUNICATION APPARATUS Non-Final OA Huawei Technologies Co., Ltd.
18876029 ANTENNA MODULE AND MOTOR VEHICLE Non-Final OA Continental Automotive Technologies GmbH
18797774 ANTENNA MODULE Non-Final OA Delta Electronics, Inc.
18852943 LIGHT GUIDE MODULE Non-Final OA LG INNOTEK CO., LTD.
18907742 FIBER OPTIC CABLE MANAGEMENT APPARATUS AND TERMINAL Non-Final OA CORNING RESEARCH & DEVELOPMENT CORPORATION
19012654 APPARATUS, SYSTEM, AND METHOD FOR SWAPPABLE ANTENNA DESIGN Non-Final OA Meta Platforms Technologies, LLC
18834111 RADIO WAVE REFLECTOR AND CONSTRUCTION MATERIAL Final Rejection SEKISUI CHEMICAL CO., LTD.

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