Prosecution Insights
Last updated: October 02, 2026

Examiner: KAY, DOUGLAS

Tech Center 4100 • Art Units: 1758 2117 2857 2865 4100

This examiner grants 63% of resolved cases

Analysis

Examiner Douglas Kay operates within Tech Center 4100 and Art Unit 1758, where he has managed 381 resolved cases. The data shows an allowance rate of 62.7 percent for these matters. Practitioners should note the median days to allowance of 1247, which establishes the typical timeline for successful prosecution in this office. This duration reflects the total time from filing to the grant of a patent for cases under his review.

The interview lift of 28.7 percent suggests that direct engagement with the examiner is a productive strategy for advancing applications. This increase in the likelihood of allowance following an interview provides a tactical path for applicants facing rejections or complex technical issues. With 381 resolved cases, the examiner has a substantial track record for practitioners to evaluate when preparing for prosecution. The combination of a 62.7 percent allowance rate and a positive interview lift indicates that while the process may take 1247 days, active communication can meaningfully improve the probability of a favorable outcome.

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

Performance Statistics

62.7%
Allow Rate
+2.7% vs TC avg
401
Total Applications
+28.7%
Interview Lift
1247
Avg Prosecution Days
Based on 381 resolved cases, 2023–2026

Rejection Statute Breakdown

27.7%
§101 Eligibility
5.4%
§102 Novelty
37.1%
§103 Obviousness
24.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17360423 Annulus Velocity Independent Time Domain Structure Imaging In Cased Holes Using Multi-Offset Secondary Flexural Wave Data Final Rejection Halliburton Energy Services, Inc.
18630083 MONITORING SYSTEM, MONITORING APPARATUS, AND MONITORING METHOD Non-Final OA NEC Corporation
17979860 SIGNAL ABNORMALITY DETECTION SYSTEM AND METHOD THEREOF Final Rejection ASUSTeK COMPUTER INC.
18265725 Battery Monitoring Apparatus and Method Non-Final OA LG Energy Solution, Ltd.
18437257 CUMULATIVE ALTITUDE CALCULATION DEVICE, CUMULATIVE ALTITUDE CALCULATION METHOD, AND RECORDING MEDIUM Non-Final OA CASIO COMPUTER CO., LTD.
18334923 SYSTEMS AND METHODS FOR A WELL INTEGRITY MANAGEMENT TOOL Final Rejection SAUDI ARABIAN OIL COMPANY
18192559 SYSTEM AND METHOD FOR EFFICIENT OPTIMIZATION OF HYDROCARBON-PRODUCTION WELL CONFIGURATION AND TRAJECTORY USING PERFORMANCE VERSUS DRILLING-COST PROFILES Non-Final OA SAUDI ARABIAN OIL COMPANY
18633350 APPARATUS AND METHOD FOR ANALYZING MANUFACTURING PROCESS DATA Non-Final OA SAMSUNG SDI CO., LTD.
18680577 METHOD FOR INSPECTING A POWERPLANT COMPONENT Non-Final OA RTX Corporation
18637221 INCREASING ACCURACY AND RELIABILITY OF PREDICTING A PERFORMANCE OF AN ELECTRONIC DEVICE Non-Final OA DISH Network L.L.C.
18658602 SYSTEMS AND METHODS FOR MONITORING AND VALIDATING STATUS OF HARDWARE DEVICES IN A CLASSIFICATION YARD Non-Final OA BNSF Railway Company
18592656 METHODS FOR DETECTING REUSE OF SENSING COMPONENT Non-Final OA HONEYWELL INTERNATIONAL INC.
18498617 AUTOMATED AND SECURE PRODUCTION DATA FLOW Non-Final OA Honeywell International Inc.
18098352 X-RAY FLUORESCENCE ANALYZER, DATA PROCESSING METHOD, AND RECORDING MEDIUM Non-Final OA Shimadzu Corporation
18290316 TIRE MANAGEMENT SYSTEM, TIRE MANAGEMENT METHOD, AND PROGRAM Final Rejection Sumitomo Rubber Industries, Ltd.
18712560 METHODS OF DETERMINING A MECHANICAL PROPERTY OF A LAYER APPLIED TO A SUBSTRATE, AND ASSOCIATED DEVICES Non-Final OA ASML NETHERLANDS B.V.
18680494 ISOLATION RESISTANCE MONITORING SYSTEM Non-Final OA GM Global Technology Operations LLC
18638040 BATTERY PACK AND MODULE HEALTH STATUS CHECK FOLLOWING AN IMPACT EVENT Non-Final OA GM Global Technology Operations LLC

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