Prosecution Insights
Last updated: October 02, 2026

Examiner: PLUMB, NIGEL H

Tech Center 3700 • Art Units: 2855 2861 3723

This examiner grants 91% of resolved cases

Analysis

Nigel H. Plumb is an examiner in Tech Center 3700 and Art Unit 2855. The examiner has 692 resolved cases and a high allowance rate of 90.8 percent. This suggests a very favorable environment for applicants. The median days to allowance is 775, which indicates the typical prosecution timeline for a successful grant. With 692 resolved cases, the examiner's performance metrics are well-established.

The interview lift for this examiner is 1.0 percent. Given that the baseline allowance rate is already 90.8 percent, the marginal increase of 1.0 percent from an interview is minimal. Practitioners may find that the high probability of success is already captured in the 90.8 percent rate without the need for additional oral advocacy. The 775 median days to allowance reinforces the speed of Art Unit 2855. In summary, the 692 resolved cases demonstrate that the examiner frequently grants patents, making the 1.0 percent interview lift a secondary consideration for most strategies.

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

Performance Statistics

90.8%
Allow Rate
+20.8% vs TC avg
714
Total Applications
+1.0%
Interview Lift
775
Avg Prosecution Days
Based on 692 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
28.6%
§102 Novelty
40.1%
§103 Obviousness
22.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18673586 INERTIAL SENSOR MODULE, INERTIAL MEASUREMENT UNIT, AND ELECTRONIC APPARATUS Final Rejection SEIKO EPSON CORPORATION
18827238 DUAL ELECTRICAL POWER SUPPLIES FOR A HYDRAULIC ACTUATOR SYSTEM Non-Final OA ILLINOIS TOOL WORKS INC.
18637912 WATER-SOLUBLE TACKINESS COMPOSITION Non-Final OA COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
18730089 METHOD AND SYSTEM FOR DETECTION OF LEAKAGES IN PROCESS INDUSTRY Non-Final OA BASF SE
18545073 ELECTRODE FOR EROSION AND/OR CORROSION MONITORING Non-Final OA Henkel AG & Co. KGaA
18521818 SEALING TEST CABINET FOR BATTERY PACK Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18688870 MONITORING AN ION FILTER FOR A FUEL CELL COOLING CIRCUIT Non-Final OA SIEMENS MOBILITY GMBH
18926111 Flow Regulation Device for Volatile and Semi-Volatile Sampling Onto Adsorbent Media Non-Final OA Government of the United States, as represented by the Secretary of the Air Force
18782048 MEDIA-RESISTANT PRESSURE SENSOR FOR LARGE PRESSURE RANGES Non-Final OA Infineon Technologies AG
18641413 SENSORS AND METHODS FOR MANUFACTURING SENSORS Non-Final OA SHENZHEN SHOKZ CO., LTD.
18623456 MICRO-ELECTROMECHANICAL DEVICES Non-Final OA Honeywell International Inc.
18787922 LEAK DETECTION THROUGH REPURPOSED FAN TACHOMETER OUTPUT Non-Final OA DELL PRODUCTS L.P.
18841102 PULSE WAVE SENSOR Non-Final OA MINEBEA MITSUMI Inc.
18695147 BURIED PIPE ASSESSMENTS (CONDITION ASSESSMENT AND MATERIAL IDENTIFICATION) BASED ON STRESS WAVE PROPAGATION Final Rejection Drexel University
18397346 SYSTEM AND METHODS FOR DETECTING FAILURE OF HEAT EXCHANGERS Non-Final OA Pentair Water Pool and Spa, Inc.

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