Prosecution Insights
Last updated: April 19, 2026

Examiner: MCAVOY, ELLEN M

Tech Center 1700 • Art Units: 1771 1797

This examiner grants 73% of resolved cases

Performance Statistics

72.8%
Allow Rate
+7.8% vs TC avg
1230
Total Applications
+8.9%
Interview Lift
937
Avg Prosecution Days
Based on 1209 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
4.7%
§102 Novelty
58.9%
§103 Obviousness
14.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18836902 LUBRICANT COMPOSITION Non-Final OA IDEMITSU KOSAN CO.,LTD.
18569305 HEAT-TREATMENT OIL COMPOSITION Non-Final OA IDEMITSU KOSAN CO.,LTD.
18382981 SYNERGISTIC PARAFFIN INHIBITORS WITH HIGH AND LOW CRYSTALLIZATION ONSET TEMPERATURES Non-Final OA Baker Hughes Oilfield Operations LLC
18958565 CONDUCTIVE GREASE FORMULATIONS AND GROUNDING SOLUTIONS FOR ELECTRIC DRIVE UNIT Non-Final OA Tesla, Inc.
19172466 METHOD FOR PREVENTING OR REDUCING LOW SPEED PRE-IGNITION IN DIRECT INJECTED SPARK-IGNITED ENGINES WITH MOLYBDENUM-CONTAINING LUBRICANT COMPOSITIONS Final Rejection Chevron Japan Ltd.
18709463 HIGH EFFICIENCY ENGINE OIL COMPOSITIONS Non-Final OA CHEVRON JAPAN LTD.
18700443 LUBRICATING OIL COMPOSITION FOR HYBRID VEHICLES Final Rejection CHEVRON JAPAN LTD.
18717092 METHODS AND SYSTEMS FOR CONVERSION OF MIXED PLASTICS TO HIGH VALUE CHEMICALS Non-Final OA SABIC Global Technologies B.V.
18873123 LUBRICATING OIL COMPOSITION WITH VISCOSITY MODIFIER WITH LOW SHEAR STABILITY INDEX Final Rejection CHEVRON ORONITE COMPANY LLC
18864474 LUBRICANT ADDITIVES Final Rejection CHEVRON ORONITE COMPANY LLC
18864460 LOW MOLECULAR WEIGHT DISPERSANTS Non-Final OA CHEVRON ORONITE COMPANY LLC
18704141 PROCESS FOR STABILIZATION OF REACTIVE LIQUID FEEDSTOCK Non-Final OA Topsoe A/S
18740324 REPLACING THE USE OF AIR AND STEAM WITH OXYGEN AND CARBON DIOXIDE IN FLUIDIZED CATALYTIC CRACKING UNITS Non-Final OA Kerogen Systems, Incorporated
18713754 ETHYLENE OLIGOMERIZATION METHOD, AND ETHYLENE OLIGOMER THEREOF Non-Final OA HANWHA TOTALENERGIES PETROCHEMICAL CO., LTD.
18443295 METHOD AND SYSTEM FOR PRODUCING REFINED HYDROCARBONS FROM WASTE PLASTICS Non-Final OA SK GEO CENTRIC CO., LTD.
18443305 METHOD AND SYSTEM FOR PRODUCING REFINED HYDROCARBONS FROM WASTE PLASTICS Non-Final OA SK GEO CENTRIC CO., LTD.

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