Prosecution Insights
Last updated: April 19, 2026

Hamilton Sundstrand Corporation

54 pending office actions

Portfolio Summary

54
Total Pending OAs
15
Final Rejections
39
Non-Final OAs

Pending Office Actions

App #TitleExaminerArt UnitStatusFiled
19095406 CHECK VALVE FOR RAM AIR TURBINE (RAT) RE-STOW PUMP HANSEN, KENNETH J 3746 Non-Final OA Mar 31, 2025
19091781 EPICYCLIC GEAR ASSEMBLY PLANETARY GEAR CARRIER DANG, TINH 3655 Non-Final OA Mar 26, 2025
18910903 PISTON RING LEE, GILBERT Y 3675 Non-Final OA Oct 09, 2024
18826852 AIRCRAFT POWER SYSTEM CHOWDHURI, SWARNA N 2836 Final Rejection Sep 06, 2024
18814204 HEAT EXCHANGER CORE LAYER PIN JONES, GORDON A 3763 Non-Final OA Aug 23, 2024
18797937 ENVIRONMENTAL CONTROL SYSTEM UTILIZING INTEGRATED VAPOR COMPRESSION SYSTEM AND THREE-WHEEL AIR CYCLE MACHINE SULLENS, TAVIA L 3763 Non-Final OA Aug 08, 2024
18791104 CONTROLLER SHAFI, MUHAMMAD 3666 Non-Final OA Jul 31, 2024
18785502 CHASSIS DESIGN FOR IMPROVED FIT AND THERMAL MANAGEMENT KRIM, PETER 2841 Non-Final OA Jul 26, 2024
18775252 CONTROLLER TIKU, SISAY G 2838 Non-Final OA Jul 17, 2024
18762997 ADDITIVELY MANUFACTURED INTEGRAL SHAFT AND MOTOR ROTOR HEAT EXCHANGER AND TIE ROD FOR RAM AIR FAN BEEBE, JOSHUA R 3745 Non-Final OA Jul 03, 2024
18758911 DETECTING POWER LINE DISCONTINUITIES TO PROTECT AGAINST ARC FAULTS PRETLOW, DEMETRIUS R 2858 Non-Final OA Jun 28, 2024
18754952 HEAT EXCHANGER CORE LAYER DESIGN BHATTACHAN, BIGYAN NMN 3763 Non-Final OA Jun 26, 2024
18753450 N-LEVEL QSW FCML BUCK CONVERTER TIKU, SISAY G 2838 Non-Final OA Jun 25, 2024
18679718 BASE-TO-EMITTER VOLTAGE TEMPERATURE COMPENSATION FOR TRANSISTOR INCLUDED IN SENSOR EXCITATION CIRCUIT COMBER, KEVIN J 2838 Non-Final OA May 31, 2024
18661912 MOTOR RADIATOR SINGH, ALEXANDER A 2834 Non-Final OA May 13, 2024
18658029 BOND-DEGRADATION DEVICE FOR TESTING EMI/LIGHTNING SUSCEPTIBILITY AND EMISSION SUPPRESSION ZAKARIA, AKM 2858 Non-Final OA May 08, 2024
18654550 RAM AIR FAN INCLUDING ADDITIVELY MANUFACTURED HEAT EXCHANGER INSERT LEGENDRE, CHRISTOPHER RYAN 3711 Non-Final OA May 03, 2024
18652484 ENVIRONMENTAL CONTROL SYSTEM OF AN AIRCRAFT CONFIGURED WITH A TWO-PHASE TURBINE ENCASED WITH A COMPRESSOR AND COUPLED TO A MOTOR HAVING A SHAFT COUPLING OSWALD, KIRSTIN U 3763 Non-Final OA May 01, 2024
18647614 ACTIVE CONTROL OF GEARBOX CASE PRESSURE DUGER, JASON H 3741 Final Rejection Apr 26, 2024
18644545 CONTOURED INLET MANIFOLD FOR SUBFREEZING HEAT EXCHANGER ROJOHN III, CLAIRE E 3763 Non-Final OA Apr 24, 2024
18637575 STATOR COIL INSULATION ELNAKIB, AHMED 2834 Non-Final OA Apr 17, 2024
18636538 STRATOSPHERIC BALLOON CAPSULE TEMPERATURE & HUMIDITY CONTROL SYSTEM COMINGS, DANIEL C 3763 Non-Final OA Apr 16, 2024
18608210 SPEED SIGNAL CONVERTER WITH REVERSE POLARITY DETECTION AND CORRECTION FERDOUS, ZANNATUL 2858 Non-Final OA Mar 18, 2024
18600450 CONTROLLER FOR A PERMANENT MAGNET MACHINE MASIH, KAREN 2846 Non-Final OA Mar 08, 2024
18440150 BI-DIRECTIONAL POWER CONVERTER UTILIZING MOSFET SWITCHING ELEMENTS JACKSON, LAKAISHA 2838 Final Rejection Feb 13, 2024
18438907 INTERWOVEN HEAT EXCHANGER CORE WITH END FACE FEATURES JONES, GORDON A 3763 Final Rejection Feb 12, 2024
18419336 TANDEM DIFFERENTIAL MOBILITY ION MOBILITY SPECTROMETRY GASSEN, CHRISTOPHER J 2881 Non-Final OA Jan 22, 2024
18408261 PLANETARY REGOLITH DUST EXPULSION FROM SPACE SUITS USING PIEZOELECTRIC ASSEMBLY INDUCED VIBRATION RIVERA-CORDERO, ARLYN I 1714 Non-Final OA Jan 09, 2024
18408144 WASTE MANAGEMENT SYSTEM WITH BUILT-IN PIEZOELECTRIC BASED INTERFACES FOR WATER RECOVERY AND STERILIZATION VIBRATION MENON, KRISHNAN S 1777 Non-Final OA Jan 09, 2024
18405424 FAULT CLEARING IN ELECTRICAL SYSTEMS WITH INJECTED SIGNAL TRAN, NGUYEN 2838 Non-Final OA Jan 05, 2024
18520865 BURST MODE IN-RUSH CURRENT CONTROL FOR ACTIVE CURRENT LIMITER CIRCUIT FOR DC-DC CONVERTER RIVERA-PEREZ, CARLOS O 2838 Final Rejection Nov 28, 2023
18386819 HEAT EXCHANGER WITH STIFFENING TUBE CONNECTORS RUPPERT, ERIC S 3763 Non-Final OA Nov 03, 2023
18496422 NUT DESIGN FOR ACTUATOR SYSTEM WOOD, KIMBERLY T 3631 Non-Final OA Oct 27, 2023
18491913 HEAT EXCHANGER WITH INTERNAL CROSS FLOW FINS DUONG, THO V 3763 Non-Final OA Oct 23, 2023
18479519 CABIN OCCUPANCY SENSOR FOR AIRCRAFT ECS TIGHE, DANA K 3762 Non-Final OA Oct 02, 2023
18464957 AIR CYCLE MACHINE (ACM) WITH HYBRID AIRFOIL AND AUXILIARY MAGNETIC THRUST BEARINGS RODRIGUEZ, JOSHUA KIEL MIGUEL 2834 Final Rejection Sep 11, 2023
18464164 FLOW CONTROL DEVICE FORMED OF THERMALLY ADAPTIVE MATERIAL AND A THERMOELECTRIC JUNCTION MCCALISTER, WILLIAM M 3753 Non-Final OA Sep 08, 2023
18240521 ALUMINUM SHEET WITH DIELECTRIC COATING ISOLATION BARRIER AZAM, MUHAMMED 2847 Final Rejection Aug 31, 2023
18238774 PISTON RINGS AND BARREL SLEEVES LEE, GEOFFREY S 3746 Final Rejection Aug 28, 2023
18453391 MOTOR ASSEMBLY WITH MULTIPLE ROTORS JOHNSON, ERIC 2834 Final Rejection Aug 22, 2023
18233520 GENERATOR SYSTEMS CHAN, KAWING 2846 Non-Final OA Aug 14, 2023
18228608 VALVE SYSTEMS PRICE, CRAIG JAMES 3753 Final Rejection Jul 31, 2023
18356336 LINEAR INDUCTION MOTOR DRIVE FOR A HIGH-SPEED TRANSPORTATION SYSTEM KUHFUSS, ZACHARY L 3615 Non-Final OA Jul 21, 2023
18334172 SELF-REGULATING AND GRAVITY-INDEPENDENT DEVICE FOR HYDROGEN RECOMBINING WITH AN INTEGRATED PASSIVE HEAT SINK FOR LOW-EARTH ORBIT AND DEEP-SPACE EXPLORATION SPACECRAFT ARANT, HARRY E 3763 Non-Final OA Jun 13, 2023
18333598 CLEANING MEASUREMENT AND CONTROL SYSTEM CHUNG, MONG-SHUNE 2118 Non-Final OA Jun 13, 2023
18205087 HEAT TRANSFER FROM TRANSFORMER WINDINGS PATEL, RAKESH BHASKARBHAI 2843 Non-Final OA Jun 02, 2023
18315857 HEAT EXCHANGER CORE LAYER ROJOHN III, CLAIRE E 3763 Final Rejection May 11, 2023
18143248 HYBRID CONSTRUCTION OF AIRCRAFT WATER COLLECTOR ORLANDO, AMBER ROSE 1731 Final Rejection May 04, 2023
18185652 ENERGY RECOVERY AND THERMAL CONTROL UTILIZING HEAT PUMP OSWALD, KIRSTIN U 3763 Non-Final OA Mar 17, 2023
18181001 HYPERLOOP ENVIRONMENTAL CONTROL SYSTEM SCHULT, ALLEN 3762 Non-Final OA Mar 09, 2023
18102488 SYSTEMS FOR COOLING EMERGENCY POWER UNITS RAYMOND, BRITTANY L 1722 Non-Final OA Jan 27, 2023
17963112 WASTE FLUID WATER RECOVERY SYSTEMS GEISBERT, WILLIAM ADDISON 1779 Final Rejection Oct 10, 2022
17962306 EYE MONITORING SYSTEMS FOR DISTRESS MONITORING FERNANDES, PATRICK M 3791 Final Rejection Oct 07, 2022
17952131 AEROSOL DETECTION SYSTEMS NIA, FATEMEH ESFANDIARI 2855 Final Rejection Sep 23, 2022

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