Prosecution Insights
Last updated: April 19, 2026

Cantor Colburn LLP - Pratt & Whitney

40 pending office actions • 4 clients

Portfolio Summary

40
Total Pending OAs
11
Final Rejections
29
Non-Final OAs

Client Portfolio (4 clients)

Client (Assignee)Pending OAs
Rtx Corporation 26
Pratt & Whitney Canada Corp. 8
Raytheon Technologies Corporation 5
Raytheon Technologies Corporation 1

Pending Office Actions

App #TitleClientExaminerArt UnitStatusFiled
18826818 Untitled Pratt & Whitney Canada Corp. RIBADENEYRA, THEODORE C 3745 Non-Final OA
18787316 Untitled Pratt & Whitney Canada Corp. VERDIER, CHRISTOPHER M 3745 Non-Final OA
18897069 Untitled Pratt & Whitney Canada Corp. MCCAFFREY, KAYLA M 3745 Final Rejection
18910648 Untitled Pratt & Whitney Canada Corp. HAGHIGHIAN, BEHNOUSH 3745 Non-Final OA
19296326 RESTRAINING PLUG Rtx Corporation NGUYEN, ANDREW H 3741 Non-Final OA Aug 11, 2025
19251142 FAN BLADE OR VANE WITH IMPROVED BIRD IMPACT CAPABILITY Rtx Corporation ZAMORA ALVAREZ, ERIC J 3745 Non-Final OA Jun 26, 2025
19065009 HYDROGEN TURBINE POWER ASSISTED CONDENSATION Rtx Corporation MEILLER, SEAN V 3741 Non-Final OA Feb 27, 2025
19030953 METHOD OF RESTORING ALLOY DEPLETION IN AN AIRFOIL AROUND COOLING HOLES Rtx Corporation BROCKMAN, ELDON T 3799 Non-Final OA Jan 17, 2025
18920379 IN-FLIGHT MEASURED PROPULSION MASS FLOW AND THRUST ON AIRCRAFT Rtx Corporation WIEHE, NATHANIEL EDWARD 3745 Non-Final OA Oct 18, 2024
18919910 GAS TURBINE ENGINE WITH ELECTRICALLY DRIVEN COMPRESSOR Rtx Corporation MEADE, LORNE EDWARD 3741 Non-Final OA Oct 18, 2024
18802099 BIFURACTING LAYUP FOR AIRFOIL RIB, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME Rtx Corporation WANG, MICHAEL H 3642 Non-Final OA Aug 13, 2024
18762968 CANTILEVER STATOR VANE Pratt & Whitney Canada Corp. WIEHE, NATHANIEL EDWARD 3745 Final Rejection Jul 03, 2024
18677543 COOLING FEATURES FOR A COMPONENT OF A GAS TURBINE ENGINE Rtx Corporation KIM, SANG K 3745 Non-Final OA May 29, 2024
18628385 Turboshaft Gearbox Speed Ratio Stage Pratt & Whitney Canada Corp. ROYSTON, JOHN M 2855 Non-Final OA Apr 05, 2024
18571459 CERAMIC MATRIX COMPOSITES AND METHOD OF MAKING Raytheon Technologies Corporation PLESZCZYNSKA, JOANNA 1783 Final Rejection Dec 18, 2023
18538554 AUTOMATED BORESCOPE POSE ESTIMATION VIA VIRTUAL MODALITIES Rtx Corporation YANG, JIANXUN 2662 Non-Final OA Dec 13, 2023
18528989 COMPRESSOR INNER AIR SEAL AND METHOD OF MAKING Rtx Corporation COLLISTER, ELIZABETH A 1784 Non-Final OA Dec 05, 2023
18493470 HYBRID BEARING FORGED FLANGE Rtx Corporation KESSLER, CHRISTOPHER S 1759 Non-Final OA Oct 24, 2023
18492191 COMPONENT CORROSION PROGNOSTICS USING COMPUTED TOMOGRAPHY (CT)-SCAN AND METHODS Rtx Corporation FAYE, MAMADOU 2884 Non-Final OA Oct 23, 2023
18491300 DEFECT DEPTH ESTIMATION FROM BORESCOPE IMAGERY Rtx Corporation YANG, JIANXUN 2662 Final Rejection Oct 20, 2023
18486535 IN-FLIGHT EMISSIONS AND CONTRAIL CONTROL SYSTEM Rtx Corporation HUANG, DAVID Z 2855 Final Rejection Oct 13, 2023
18484679 POWDER EXTRACTION TOOL Rtx Corporation SIDDIQUI, ADIL ABDUL WAJID 1735 Non-Final OA Oct 11, 2023
18478084 NEURAL NETWORK BASED FAST MODEL PREDICTIVE CONTROL FOR POWER REGULATION Rtx Corporation PATEL, JIGNESHKUMAR C 2116 Non-Final OA Sep 29, 2023
18464792 PROXIMITY MEASUREMENT BETWEEN SEAL ELEMENTS OF A GAS TURBINE ENGINE Rtx Corporation PRUITT, JUSTIN A 3745 Non-Final OA Sep 11, 2023
18452925 SEALING AND BALANCING OF GAS TURBINE ENGINE Pratt & Whitney Canada Corp. WONG, ELTON K 3745 Final Rejection Aug 21, 2023
18366129 REMOTE UPDATES OF A GAS TURBINE ENGINE Rtx Corporation WEI, ZENGPU 2197 Non-Final OA Aug 07, 2023
18340341 METHOD TO DECREASE ACOUSTIC SIGNATURE OF A HYBRID ELECTRIC PROPULSION SYSTEM Rtx Corporation AMAR, MARC J 3741 Non-Final OA Jun 23, 2023
18331699 MULTI INSTRUMENT EGRESS FOR GAS TURBINE ENGINE Rtx Corporation NAVARRO, HUGO IVAN 2858 Final Rejection Jun 08, 2023
18326233 AUTOMATIC ADJUSTMENT OF PARAMETERS BASED ON PART SURFACE REFLECTIVE INDEX FOR POINT CLOUD ACQUISITION USING A BLUE LIGHT SCANNER Pratt & Whitney Canada Corp. MAHROUKA, WASSIM 2665 Final Rejection May 31, 2023
18126596 PREDICTIVE OPTIMIZATION AND CONTROL FOR FUSION WELDING OF METALS Raytheon Technologies Corporation NGUYEN, HUNG D 3761 Non-Final OA Mar 27, 2023
18168836 POWER BEAMING OF MICROWAVE RADIATION FOR ANTI-ICING Raytheon Technologies Corporation BACHNER, ROBERT G 2898 Non-Final OA Feb 14, 2023
18162851 SINGLE-STEP PROCESS FOR SELECTIVE HEAT TREATMENT OF METALS USING MULTIPLE HEATING SOURCES Rtx Corporation MCGUTHRY BANKS, TIMA MICHELE 1733 Final Rejection Feb 01, 2023
18162860 SELECTIVE HEAT TREATMENT OF METALS USING MULTIPLE INDUCTION HEATING COILS Rtx Corporation MORALES, RICARDO D 1738 Non-Final OA Feb 01, 2023
18162861 SELECTIVE HEAT TREATMENT OF METALS USING A COIL-IN-FURNACE SYSTEM Raytheon Technologies Corporation MORALES, RICARDO D 1738 Non-Final OA Feb 01, 2023
18083983 POLYMER YARNS FOR FABRIC STABILITY AND UNIFORMITY, PLIES MANUFACTURED THEREFROM AND ARTICLES COMPRISING THE SAME Raytheon Technologies Corporation SINGH-PANDEY, ARTI R 1759 Non-Final OA Dec 19, 2022
18083976 SACRIFICIAL YARNS FOR USE IN CERAMIC MATRIX COMPOSITES, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME Rtx Corporation AUER, LAURA A 1783 Non-Final OA Dec 19, 2022
17586326 HYBRID ELECTRIC SINGLE ENGINE DESCENT RESTART Rtx Corporation AMAR, MARC J 3741 Non-Final OA Jan 27, 2022
17554419 REINFORCING FIBERS FOR USE IN CERAMIC MATRIX COMPOSITES, METHODS OF MANUFACTURE AND ARTICLES COMPRISING THE SAME Rtx Corporation PAGE, HANA C 1745 Non-Final OA Dec 17, 2021
17077459 SUSPENSION PLASMA SPRAY ABRADABLE COATING FOR CANTILEVER STATOR Raytheon Technologies Corporation PENNY, TABATHA L 1712 Final Rejection Oct 22, 2020
16844683 COOLING SYSTEM FOR A GAS TURBINE ENGINE Rtx Corporation KANG, EDWIN G 3741 Final Rejection Apr 09, 2020

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