Prosecution Insights
Last updated: August 17, 2026

Pratt & Whitney Canada Corp.

75 pending office actions • 30 art units • 58 examiners • 0 of 75 (0%) have an AI response strategy ready • 338 patents granted in the last 365 days

Portfolio Summary

75
Total Pending OAs
48
Non-Final OAs
24
Final Rejections
3
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 23 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

12
Overdue
1
Due this week
8
Due this month
1
Due in next 60 days
1
Due later

Deadline Fire Line

Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 23 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (12)Due ≤ 7 days (1)Due ≤ 30 days (8)Due ≤ 60 days (1)Due later (1)

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

27
Hard (36%)
40
Medium (53%)
7
Easy (9%)
1
Unknown (1%)

Rejection Statute Mix

BucketCases
§101 only1 (1%)
§101 + other2 (3%)
§103 only32 (43%)
§102 only7 (9%)
§112 only7 (9%)
Double-patenting + other1 (1%)
Multi-statute (no §101)24 (32%)
No statute on record1 (1%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

5
Life Sciences
7% of docket
1
Information Tech
1% of docket
2
Communications
3% of docket
4
Semiconductors
5% of docket
56
Mechanical / Eng
75% of docket
7
Business / Other
9% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

750 h
Manual time on pending OAs
150 h
Time saved (low, 20%)
262 h
Time saved (mid, 35%)
6.6 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
AMAR, MARC J 4 75.0% +38.1%
KESSLER, CHRISTOPHER S 4 60.0% +14.4%
MEADE, LORNE EDWARD 3 51.0% +39.6%
KIM, TAE JUN 3 63.9% +26.1%
MEILLER, SEAN V 3 75.9% +39.9%
ZAMORA ALVAREZ, ERIC J 2 88.6% +21.6%
TRAVERS, MATTHEW P 2 63.2% +43.6%
KANG, EDWIN G 2 64.0% +67.8%
BURKE, THOMAS P 2 43.8% +23.0%
SEBASCO CHENG, STEPHANIE 2 58.7% +71.1%

Quick Wins (1)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
19420073 FLANGE WITH STRESS ATTENTUATION FEATURE ZAMORA ALVAREZ, ERIC J

Hard Cases (27)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18594925 ENERGY GENERATING DEVICE MEILLER, SEAN V 43d overdue
17942045 ADAPTIVE MANUFACTURING USING CT SCAN DATA KOSSEK, MAGDALENA IZABELLA 31d overdue
18807515 ENGINE FUEL NOZZLE WITH COAXIAL FUEL AND AIR FLOWS KIM, TAE JUN 8d
18377186 CIRCUMFERENTIALLY TAILORED INLET GUARD FOR AN AIRCRAFT ENGINE INLET MEADE, LORNE EDWARD 28d
18387258 Gas Turbine Engine Fuel System for an Aircraft Propulsion System SEBASCO CHENG, STEPHANIE 76d
19310222 CLUTCHED ELECTRIC POWERPLANT FOR AIRCRAFT PROPULSION SYSTEM GREEN, RICHARD R
19231131 GASEOUS FUEL NOZZLE FOR TURBINE ENGINE POWERPLANT CHAU, ALAIN
19096066 MULTI-ADJUSTABLE VALVE FOR A LUBRICATION SYSTEM NICHOLS, PHYLLIS M

Interview Candidates (27)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18594925 ENERGY GENERATING DEVICE MEILLER, SEAN V 43d overdue
18388285 TAILORING ROTOR BLADE SECTOR CONFIGURATIONS TO TUNE GAS TURBINE ENGINE BLADED ROTOR SEBASCO CHENG, STEPHANIE 42d overdue
18733571 EFFUSION COOLED FUEL NOZZLE TIP BURKE, THOMAS P 25d overdue
18654335 PARTIAL-ADMISSION TURBINE ASSEMBLY FOR AN AIRCRAFT AND METHOD FOR CONTROLLING SAME KIM, TAE JUN 15d overdue
18211100 SYSTEM AND METHOD FOR TURBINE ENGINE TURBINE COMPONENT COOLING MEILLER, SEAN V 2d overdue
17866103 AIRCRAFT PROPULSION SYSTEM WITH INTERMITTENT COMBUSTION ENGINE(S) MEADE, LORNE EDWARD 2d overdue
18129640 POWER COUPLING BETWEEN ENGINE ROTATING ASSEMBLY AND EXTERNAL DEVICE AMAR, MARC J 5d
18807515 ENGINE FUEL NOZZLE WITH COAXIAL FUEL AND AIR FLOWS KIM, TAE JUN 8d

Top Art Units

Art UnitApps
3741 20
3745 7
1759 4
3665 3
3799 3
3642 3
3763 3
3654 2
3726 2
3647 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19420073 FLANGE WITH STRESS ATTENTUATION FEATURE ZAMORA ALVAREZ, ERIC J 3745 §103 Non-Final OA Pending Dec 15, 2025
19310222 CLUTCHED ELECTRIC POWERPLANT FOR AIRCRAFT PROPULSION SYSTEM GREEN, RICHARD R 3647 §102§103 Non-Final OA Pending Aug 26, 2025
19264003 METHOD OF REDUCING NOISE OF AIRCRAFT HAVING HYBRID POWER PLANTS CODUROGLU, JALAL C §103 Non-Final OA Pending Jul 09, 2025
19231131 GASEOUS FUEL NOZZLE FOR TURBINE ENGINE POWERPLANT CHAU, ALAIN 3741 §102§103 Final Rejection Pending Jun 06, 2025
19096066 MULTI-ADJUSTABLE VALVE FOR A LUBRICATION SYSTEM NICHOLS, PHYLLIS M 3753 §101 Non-Final OA Pending Mar 31, 2025
19077615 OIL TANK FOR AIRCRAFT ENGINE TRUONG, MINH D 3654 §102 Final Rejection Pending Mar 12, 2025
19013550 ROLLER BEARING COMPLIANT RACEWAY UNDERCUT WAITS, ALAN B 3617 §102§103§112 Non-Final OA Pending Jan 08, 2025
18973948 INTERNAL COMBUSTION ENGINE WITH MONOLITHIC PILOT CHAMBER STRUCTURE NGUYEN, HOANG M §103 Non-Final OA Pending Dec 09, 2024
18962596 BATTERY CHARGING CONTROL SYSTEMS FOR AIRCRAFT BATTERIES ROBERT, DANIEL M 3665 §103 Final Rejection Pending Nov 27, 2024
18963057 BATTERY MONITORING SYSTEM AND METHOD MCANDREW, CHRISTOPHER P 2858 §102§103§112 Non-Final OA Pending Nov 27, 2024
18949285 LUBRICANT SYSTEM RIEGELMAN, MICHAEL A 3654 §102§103 Final Rejection Pending Nov 15, 2024
18947589 ASYMMETRIC GEAR TEETH FOR GEARBOX MACARTHUR, VICTOR L 3618 §103 Final Rejection Pending Nov 14, 2024
18944822 LUBRICATION RINGS FOR AIRCRAFT ENGINE BOLTS TRAVERS, MATTHEW P 3726 §102§103 Non-Final OA Pending Nov 12, 2024
18934863 SHAFT ASSEMBLY FOR A GAS TURBINE ENGINE CHRISTENSEN, DANIELLE M 3745 §102 Non-Final OA Pending Nov 01, 2024
18918632 ANTI-ROTATION TOOL FOR AIRCRAFT ENGINE ROTATIONAL EQUIPMENT TRAVERS, MATTHEW P 3726 §103§112 Non-Final OA Pending Oct 17, 2024
18917557 METHOD OF OPERATING AN AIRCRAFT ENGINE MEADE, LORNE EDWARD 3741 §112 Final Rejection Pending Oct 16, 2024
18909569 POWERPLANT JACKING INSERT WITH EXTERIOR AND INTERIOR THREADS LAMBERT, WAYNE A 3745 §103 Non-Final OA Pending Oct 08, 2024
18890327 MOUNTING ASSEMBLY FOR CONNECTING AIRCRAFT COMPONENTS TOGETHER THOMPSON, KENNETH L 3676 §102 Non-Final OA Pending Sep 19, 2024
18821274 SPILL RETURN FUEL NOZZLES FOR USAGE AS START NOZZLES KANG, EDWIN G 3741 §102§103§112 Non-Final OA Pending Aug 30, 2024
18812857 JET NOZZLE EFFECTIVE AREA CONTROL SYSTEM FOR GAS TURBINE ENGINE KIM, TAE JUN 3799 §103 Non-Final OA Pending Aug 22, 2024
18807515 ENGINE FUEL NOZZLE WITH COAXIAL FUEL AND AIR FLOWS KIM, TAE JUN 3799 §102§103§112 Non-Final OA 8d Pending Aug 16, 2024
18781576 AIRCRAFT EXTERNAL POWER ASSEMBLY, GROUND-BASED POWER ASSEMBLY, AND METHOD FOR OPERATING SAME DANGOL, ASHESH 3642 §103 Non-Final OA Pending Jul 23, 2024
18780190 ASYMETRIC OPERATING REGIME MID-EXIT TYPE CHANGE SWITCHING/SELECTING CONTROL SYSTEM AND METHOD KINGSLAND, KYLE J 3663 §102§103 Non-Final OA Pending Jul 22, 2024
18761549 PARTIAL EXIT CENTRIFUGAL COMPRESSOR MEILLER, SEAN V 3741 §103 Non-Final OA Pending Jul 02, 2024
18745799 A FUZZY LOGIC-BASED AI SYSTEM FOR DETECTION AND ACCOMMODATION OF OIL SYSTEM FAILURES IN THE AIRCRAFT'S PROPULSION SYSTEM PATEL, MANGLESH M 3665 §112 Final Rejection 31d overdue Pending Jun 17, 2024
18736838 PULSE-MANAGED PLASMA METHOD FOR COATING ON INTERNAL SURFACES OF WORKPIECES TUROCY, DAVID P 1718 §103 Non-Final OA Pending Jun 07, 2024
18733571 EFFUSION COOLED FUEL NOZZLE TIP BURKE, THOMAS P 3741 §103 Final Rejection 25d overdue Pending Jun 04, 2024
18733582 DRAIN SHIELD SEHN, MICHAEL L 3677 §102 Non-Final OA Pending Jun 04, 2024
18670332 DIFFERENTIAL GEARTRAIN FOR AIRCRAFT PROPULSION SYSTEM BEEBE, JOSHUA R 3745 §103 Final Rejection Pending May 21, 2024
18664857 FILTER ASSEMBLY FOR AN AIRCRAFT ENGINE MCGANN, BERNADETTE KAREN §103 Non-Final OA Pending May 15, 2024
18654335 PARTIAL-ADMISSION TURBINE ASSEMBLY FOR AN AIRCRAFT AND METHOD FOR CONTROLLING SAME KIM, TAE JUN 3799 §103 Non-Final OA 15d overdue Pending May 03, 2024
18649208 HEAT EXCHANGER HAVING A MIXING CHAMBER WITH LOUVERS RUPPERT, ERIC S 3763 §103 Non-Final OA Pending Apr 29, 2024
18649274 HEAT EXCHANGER HAVING A MIXING CHAMBER WITH FINS LANE, DEVON 3763 §102§103 Non-Final OA Pending Apr 29, 2024
18635743 MOUNTING COMPONENTS FOR A POWERPLANT FLUID SYSTEM WALTHOUR, SCOTT J 3632 §102§103 Non-Final OA Pending Apr 15, 2024
18634181 PISTON RING WITH INTEGRATED ANTI-ROTATION FEATURE FOSTER, NICHOLAS L 3675 §102 Final Rejection Pending Apr 12, 2024
18631522 RAW MATERIAL BUILD-UP USING ADDITIVE MANUFACTURING MCGUTHRY BANKS, TIMA MICHELE Non-Final OA Pending Apr 10, 2024
18623673 RIVETING TOOL YOKE TOLAN, EDWARD THOMAS 3725 §103 Non-Final OA 16d overdue Pending Apr 01, 2024
18610505 SYSTEM AND METHOD FOR ESTIMATING A SERVICE LIFE OF A COMPONENT OF AN AIRCRAFT POWER PLANT LEE, SANGKYUNG §101§103 Non-Final OA Pending Mar 20, 2024
18600204 AIRCRAFT ACOUSTIC PANEL WITH INTEGRATED FIRE-RESISTANT MATERIAL LUKS, JEREMY AUSTIN 2837 §103 Non-Final OA 29d Pending Mar 08, 2024
18594925 ENERGY GENERATING DEVICE MEILLER, SEAN V 3741 §103§112 Non-Final OA 43d overdue Pending Mar 04, 2024
18444871 SYSTEM AND METHOD FOR DETECTING A PERFORMANCE DEGRADATION OF A BLEED-OFF VALVE SHABMAN, MARK A 2855 §112 Non-Final OA Pending Feb 19, 2024
18420127 IMPELLER CONTAINMENT SYSTEM GOLIK, ARTHUR PAUL 3745 §103 Non-Final OA Pending Jan 23, 2024
18410896 METHOD AND SYSTEM FOR CONTROLLING A VARIABLE-PITCH PROPELLER WITH OIL LEAKAGE COMPENSATION ZAMORA ALVAREZ, ERIC J 3745 §102§103 Non-Final OA Pending Jan 11, 2024
18404324 AUGMENTED REALITY ASSISTED BORESCOPE INSPECTION OF TURBOMACHINERY ENGINES AND RELATED COMPONENTS TUCKER, WESLEY J 2661 §103 Non-Final OA Pending Jan 04, 2024
18397120 POLISHING BLADED ROTOR USING ROBOTIC POLISHING DEVICE DELRUE, BRIAN CHRISTOPHER 3745 §103 Final Rejection 12d Pending Dec 27, 2023
18388285 TAILORING ROTOR BLADE SECTOR CONFIGURATIONS TO TUNE GAS TURBINE ENGINE BLADED ROTOR SEBASCO CHENG, STEPHANIE 3741 §102 Final Rejection 42d overdue Pending Nov 09, 2023
18504812 BLENDED N-DOT AND RATIO UNIT REFERENCE ACCELERATION CONTROL ARCHITECTURE FOR GAS TURBINE ENGINE AMAR, MARC J 3741 §103§112 Non-Final OA Pending Nov 08, 2023
18387258 Gas Turbine Engine Fuel System for an Aircraft Propulsion System SEBASCO CHENG, STEPHANIE 3741 §103§112 Non-Final OA 76d Pending Nov 06, 2023
18495973 VANE OUTER SHROUD UNDERCUT GROOVE NGUYEN, ANDREW H 3741 §102§103§112 Final Rejection Pending Oct 27, 2023
18377475 ASSEMBLY AND METHOD FOR MACHINING A COMPONENT PARK, JE HWAN JOHN §103§112 Non-Final OA Pending Oct 06, 2023
18377453 ELECTRONIC ITEM MANAGEMENT FOR ITEM STORAGE AREA GLASS, RUSSELL S 3627 §103 Non-Final OA 34d Pending Oct 06, 2023
18377180 VARIABLE INLET GUARD FOR AN INLET OF AN AIRCRAFT ENGINE KANG, EDWIN G 3741 §103 Non-Final OA Pending Oct 05, 2023
18377186 CIRCUMFERENTIALLY TAILORED INLET GUARD FOR AN AIRCRAFT ENGINE INLET MEADE, LORNE EDWARD 3741 §103§112 Final Rejection 28d Pending Oct 05, 2023
18372485 SYSTEM AND METHOD FOR IDENTIFYING RUBBING CONDITIONS FOR ENGINE ROTATIONAL EQUIPMENT GEIST, RICHARD EDWIN 3665 §103 Final Rejection 3d overdue Pending Sep 25, 2023
18367288 VENTED HYDROGEN FUEL RESERVOIR FOR AIRCRAFT ENGINE RAYMOND, KEITH MICHAEL 3798 §103 Final Rejection 45d overdue Pending Sep 12, 2023
18231067 COMPRESSOR BLEED OFFTAKE AMAR, MARC J 3741 §102§103§112 Final Rejection Pending Aug 07, 2023
18219278 SYSTEMS AND METHODS FOR CONTROLLING A BATTERY PACK LOADOUT FOR AN AIRCRAFT HENZE, DAVID V 2859 §101§102§103Other Non-Final OA Pending Jul 07, 2023
18214256 TESTING SECONDARY POWER SYSTEM OF AIRCRAFT POWERPLANT DUGER, JASON H 3741 §102 Non-Final OA Pending Jun 26, 2023
18211100 SYSTEM AND METHOD FOR TURBINE ENGINE TURBINE COMPONENT COOLING MEILLER, SEAN V 3741 §103 Final Rejection 2d overdue Pending Jun 16, 2023
18334494 AIRCRAFT AND ASSOCIATED METHOD OF CONDITIONING CABIN AIR JONES, GORDON A 3763 §103 Final Rejection Pending Jun 14, 2023
18204131 SYSTEM AND METHOD FOR GENERATING ASSEMBLY INSTRUCTIONS FOR A PLURALITY OF 3D COMPONENT MODELS TSENG, KYLE HWA-KAI §103 Non-Final OA Pending May 31, 2023
18326233 AUTOMATIC ADJUSTMENT OF PARAMETERS BASED ON PART SURFACE REFLECTIVE INDEX FOR POINT CLOUD ACQUISITION USING A BLUE LIGHT SCANNER MAHROUKA, WASSIM 2665 §103§112 Non-Final OA Pending May 31, 2023
18141846 TAPERED FUEL GALLERY FOR A FUEL NOZZLE LIU, JINGCHEN 3741 §103 Final Rejection Pending May 01, 2023
18129640 POWER COUPLING BETWEEN ENGINE ROTATING ASSEMBLY AND EXTERNAL DEVICE AMAR, MARC J 3741 §103 Non-Final OA 5d Pending Mar 31, 2023
18116588 ADAPTIVE MANUFACTURING USING AN ADAPTIVE MANUFACTURING TOOLPATH KESSLER, CHRISTOPHER S 1759 §112Other Non-Final OA 27d Pending Mar 02, 2023
18116559 ADAPTIVE OVERHAUL USING CT SCAN SINGLE DATA SET KESSLER, CHRISTOPHER S 1759 §112Other Non-Final OA 27d Pending Mar 02, 2023
18116580 ADAPTIVE MANUFACTURING USING A CT SCAN AND AN ADAPTIVE MANUFACTURING TOOLPATH KESSLER, CHRISTOPHER S 1759 §112Other Non-Final OA 27d Pending Mar 02, 2023
18108132 ADAPTIVE OVERHAUL USING STRUCTURED LIGHT SINGLE DATA SET KESSLER, CHRISTOPHER S 1759 §112Other Non-Final OA 27d Pending Feb 10, 2023
18151747 ACCESSORY GEARBOX COVER LINKAGES BURKE, THOMAS P 3741 §103§112 Final Rejection Pending Jan 09, 2023
18088249 ELECTRIC AIRCRAFT PROPULSION UNIT(S) WITH MULTIPLE PROPULSOR ROTORS WANG, MICHAEL H 3642 §103 Non-Final OA Pending Dec 23, 2022
17942062 ADAPTIVELY DEPOSITING BRAZE MATERIAL USING STRUCTURED LIGHT SCAN DATA TRAN-LE, THAO UYEN 3761 §103§112DP Final Rejection Pending Sep 09, 2022
17942045 ADAPTIVE MANUFACTURING USING CT SCAN DATA KOSSEK, MAGDALENA IZABELLA 2117 §103§112Other Final Rejection 31d overdue Pending Sep 09, 2022
17866063 AIRCRAFT PROPULSION SYSTEM WITH INTERMITTENT COMBUSTION ENGINE(S) GORDON, ANNA L 3642 §103 Non-Final OA 71d overdue Pending Jul 15, 2022
17866103 AIRCRAFT PROPULSION SYSTEM WITH INTERMITTENT COMBUSTION ENGINE(S) MEADE, LORNE EDWARD 3741 §103 Final Rejection 2d overdue Pending Jul 15, 2022
17733408 ELECTRICAL HEATING SYSTEM FOR HYBRID POWERPLANT ELECTRICAL POWER SOURCE AMAR, MARC J 3741 §103§112 Non-Final OA Pending Apr 29, 2022

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