Prosecution Insights
Last updated: April 19, 2026

Examiner: LAMBE, PATRICK F

Tech Center 3700 • Art Units: 3671 3674 3676 3678 3679 3753

This examiner grants 62% of resolved cases

Performance Statistics

62.2%
Allow Rate
-7.8% vs TC avg
629
Total Applications
+29.4%
Interview Lift
1095
Avg Prosecution Days
Based on 585 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
32.5%
§102 Novelty
50.5%
§103 Obviousness
14.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18438913 Expandable Drill Pipe Centralizer/Stabilizer Final Rejection Saudi Arabian Oil Company
18482062 METHODS OF ASSESSING A CAPROCK IN A GEOLOGIC SEQUENCE FOR CAPROCK DEFECTS Non-Final OA Saudi Arabian Oil Company
18360127 MOVABLE MOUNT FOR WELL CELLAR GAS DETECTORS Non-Final OA SAUDI ARABIAN OIL COMPANY
19222295 PEFORATING GUN CLUSTER SYSTEM FOR WELLBORE OPERATIONS Final Rejection DYNAMIC BLASTING SOLUTIONS, LLC
18662614 ELEVATOR FOR TUBULAR HANDLING Non-Final OA WEATHERFORD TECHNOLOGY HOLDINGS, LLC
18219750 INLINE FRACTURING VALVE SYSTEMS AND METHODS Final Rejection Cameron International Corporation
17981791 AUTOMATED METHOD FOR SELECTING OIL PRODUCING WELLS TO SUBSEA DEMULSIFIER INJECTION Final Rejection Petróleo Brasileiro S.A. - Petrobras
19173366 FLUID CONDUIT ASSEMBLY FOR A FLUID SUPPLY SYSTEM Non-Final OA Scout Surface Solutions, LLC
18943830 System and Method for Determining Pump Intake Pressure or Reservoir Pressure in an Oil and Gas Well Non-Final OA Liberty Lift Solutions LLC
19099872 Remote Well Stimulation Method Non-Final OA C-INNOVATION, LLC
18987721 SEAL POCKET DETECTION ASSEMBLY Final Rejection FMC Technologies, Inc.
18940578 ENHANCED WELL EXTRACTION TOOL Non-Final OA AGOG ENERGY INC.
18582895 PORTABLE MODULAR APPARATUS FOR RETAINING, DIAGNOSING AND MEASURING OF PROPPANT AND FORMATION SOLIDS IN HYDROCARBON PRODUCING WELLS Final Rejection Instituto Mexicano del Petróleo
18646900 INDIRECT HYDRAULIC FRACTURING METHOD AND SYSTEM Final Rejection ChEnergy LLC
17636567 Subsea Umbilicals Non-Final OA Subsea 7 Limited
18692174 A METHOD AND SYSTEM FOR REMEDIATING A WELLBORE Final Rejection Romolo Loren Bertani
18685066 DOWNHOLE CAMERA ENHANCED MANIPULATION TOOL Non-Final OA E.V. Offshore Limited
18199315 ROTATING CONTROL DEVICE Final Rejection Opla Energy Ltd.
17995960 SUBSEA PHASE-SEPARATION AND DENSE GAS REINJECTION BY USING A PUMP Final Rejection Vetco Gray Scandinavia AS
17623725 VALVE ARRANGEMENT Final Rejection PETROLEUM TECHNOLOGY COMPANY AS
16713679 WELL INTERVENTION MONOHULL VESSEL Final Rejection HELIX ENERGY SOLUTIONS GROUP, INC.

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