Prosecution Insights
Last updated: April 19, 2026

Examiner: NGUYEN, HUNG Q

Tech Center 3700 • Art Units: 3741 3747 3783 3799

This examiner grants 83% of resolved cases

Performance Statistics

83.4%
Allow Rate
+13.4% vs TC avg
600
Total Applications
+12.5%
Interview Lift
872
Avg Prosecution Days
Based on 586 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
36.6%
§102 Novelty
34.0%
§103 Obviousness
22.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18084553 COOLING SYSTEM Non-Final OA MAHLE International GmbH
18033744 TRANSMISSION UNIT AND POWER SYSTEM Non-Final OA KUBOTA CORPORATION
19101405 PISTON ASSEMBLIES AND CYLINDERS THAT CONTROL GAS FLOW Non-Final OA Cummins Inc.
18995426 PRECHAMBER SPARK PLUG Non-Final OA Robert Bosch GmbH
18875853 METHOD AND DEVICE FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE Non-Final OA Robert Bosch GmbH
18373396 DUAL FUEL SYSTEM FOR ENGINE HAVING FUEL-ACTUATED FUEL PUMP AND METHOD Non-Final OA Caterpillar Inc.
18484105 BI-FUEL RECIPROCATING ENGINE TO POWER DIRECT DRIVE TURBINE FRACTURING PUMPS ONBOARD AUXILIARY SYSTEMS AND RELATED METHODS Non-Final OA BJ Energy Solutions, LLC
18869778 CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTION ENGINE CONFIGURED TO CONTROL COMBUSION, AND METHOD OF CONTROL THEREOF Final Rejection Cummins Power Generation Inc.
18097945 ACTIVE BAFFLING FOR COOLING SYSTEMS Final Rejection CNH Industrial America LLC
18981852 FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE Non-Final OA MAN Energy Solutions SE
18868694 APPARATUS AND METHOD FOR MANAGING AUTOIGNITION IN AN IN-CYLINDER INJECTOR AND COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE Non-Final OA HPDI Technology Limited Partnership
18858477 FUEL INJECTOR Non-Final OA PHINIA DELPHI LUXEMBOURG SARL
18727688 PISTON FOR DIESEL ENGINES WITH OPTIMIZED COMBUSTION CHAMBER Final Rejection Dumarey Automotive Italia S.p.A.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month