Prosecution Insights
Last updated: May 29, 2026

Pratt & Whitney Canada Corp.

48 pending office actions • 22 art units • 37 examiners • 0 of 48 (0%) have an AI response strategy ready • 303 patents granted in the last 365 days

Portfolio Summary

48
Total Pending OAs
24
Non-Final OAs
17
Final Rejections
7
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 47 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

21
Overdue
2
Due this week
11
Due this month
10
Due in next 60 days
3
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. 47 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (21)Due ≤ 7 days (2)Due ≤ 30 days (11)Due ≤ 60 days (10)Due later (3)

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.

2
Hard (4%)
38
Medium (79%)
4
Easy (8%)
4
Unknown (8%)

Rejection Statute Mix

BucketCases
§101 only2 (4%)
§103 only35 (73%)
§102 only3 (6%)
§112 only4 (8%)
No statute on record4 (8%)

Industry Mix

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

5
Life Sciences
10% of docket
2
Information Tech
4% of docket
0
Communications
0% of docket
4
Semiconductors
8% of docket
36
Mechanical / Eng
75% of docket
1
Business / Other
2% 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.

480 h
Manual time on pending OAs
96 h
Time saved (low, 20%)
168 h
Time saved (mid, 35%)
4.2 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KESSLER, CHRISTOPHER S 4 59.6% +14.9%
KIM, TAE JUN 3 64.0% +26.2%
SEBASCO CHENG, STEPHANIE 3 58.5% +70.7%
REITZ, MICHAEL K. 2 70.0% +5.8%
MEILLER, SEAN V 2 77.5% +36.0%
MEADE, LORNE EDWARD 2 50.4% +39.7%
IGUE, ROBERTO TOSHIHARU 2 58.7% +17.4%
HOTCHKISS, MICHAEL WAYNE 1 69.1% +50.5%
PATEL, MANGLESH M 1 74.3% +18.3%
MCCALL, ERIC SCOTT 1 87.7% +6.1%

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
18738918 METHOD AND INTEGRALLY BLADED ROTOR FOR BLADE OFF TESTING MCCALL, ERIC SCOTT 35d

Hard Cases (2)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18745799 A FUZZY LOGIC-BASED AI SYSTEM FOR DETECTION AND ACCOMMODATION OF OIL SYSTEM FAILURES IN THE AIRCRAFT'S PROPULSION SYSTEM PATEL, MANGLESH M 31d overdue
18594778 RAPID PART ASSESSMENT WITH TESTING AND MACHINE LEARNING BRANCHES LAU, TUNG S 71d

Interview Candidates (18)

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
18765556 TURBOPROP ENGINE WITH CLOSABLE CORE SEBASCO CHENG, STEPHANIE 43d overdue
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
18779525 AIRCRAFT ENGINE ASSEMBLY STAND AND METHOD OF USING THE SAME HOTCHKISS, MICHAEL WAYNE 37d overdue
18745799 A FUZZY LOGIC-BASED AI SYSTEM FOR DETECTION AND ACCOMMODATION OF OIL SYSTEM FAILURES IN THE AIRCRAFT'S PROPULSION SYSTEM PATEL, MANGLESH M 31d overdue
18582136 EXHAUST DUCT MOUNTING STRUCTURE FOR HYBRID AIRCRAFT POWERPLANT KIM, TAE JUN 31d 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

Top Art Units

Art UnitApps
3741 12
3745 5
3799 4
1759 4
3642 3
3665 2
2855 2
3726 1
3725 1
3763 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19172216 TEST ROTOR BLADE FOR AN AIRCRAFT ENGINE BLADE-OFF TEST REITZ, MICHAEL K. 3745 §103 Final Rejection 9d overdue Pending Apr 07, 2025
18807515 ENGINE FUEL NOZZLE WITH COAXIAL FUEL AND AIR FLOWS KIM, TAE JUN 3799 §103 Final Rejection 8d Pending Aug 16, 2024
18779525 AIRCRAFT ENGINE ASSEMBLY STAND AND METHOD OF USING THE SAME HOTCHKISS, MICHAEL WAYNE 3726 §102 Non-Final OA 37d overdue Pending Jul 22, 2024
18765556 TURBOPROP ENGINE WITH CLOSABLE CORE SEBASCO CHENG, STEPHANIE 3741 §103 Non-Final OA 43d overdue Pending Jul 08, 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 §101 Non-Final OA 31d overdue Pending Jun 17, 2024
18738918 METHOD AND INTEGRALLY BLADED ROTOR FOR BLADE OFF TESTING MCCALL, ERIC SCOTT 2855 §103 Final Rejection 35d Pending Jun 10, 2024
18733571 EFFUSION COOLED FUEL NOZZLE TIP BURKE, THOMAS P 3741 §103 Non-Final OA 25d overdue Pending Jun 04, 2024
18667803 STATOR VANE WITH MULTI-ACCESS COOLING AIR FEED PASSAGE HTAY, AYE SU MON 3745 §103 Non-Final OA Pending May 17, 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
18623673 RIVETING TOOL YOKE TOLAN, EDWARD THOMAS 3725 §103 Non-Final OA 16d overdue Pending Apr 01, 2024
18606474 HEAT EXCHANGE SYSTEM FOR AIRCRAFT ENGINE RUPPERT, ERIC S 3763 §112 Non-Final OA 27d Pending Mar 15, 2024
18606706 ROTORCRAFT WITH ANTI-TORQUE AIR SYSTEM AND TAIL ROTOR(S) KREINER, MICHAEL B 3642 §103 Non-Final OA 50d overdue Pending Mar 15, 2024
18600204 AIRCRAFT ACOUSTIC PANEL WITH INTEGRATED FIRE-RESISTANT MATERIAL LUKS, JEREMY AUSTIN 2837 §103 Final Rejection 29d Pending Mar 08, 2024
18594925 ENERGY GENERATING DEVICE MEILLER, SEAN V 3741 §103 Non-Final OA 43d overdue Pending Mar 04, 2024
18594796 RAPID PART ASSESSMENT UTILIZING MACHINE LEARNING HA, NGUYEN Q 2853 §103 Non-Final OA 34d Pending Mar 04, 2024
18594778 RAPID PART ASSESSMENT WITH TESTING AND MACHINE LEARNING BRANCHES LAU, TUNG S §101 Non-Final OA 71d Pending Mar 04, 2024
18594862 RAPID PART ASSESSMENT DEVELOPING GOOD/BAD PERCENTAGE LIKELIHOOD KWOK, HELEN C 2855 §103 Non-Final OA 34d Pending Mar 04, 2024
18582136 EXHAUST DUCT MOUNTING STRUCTURE FOR HYBRID AIRCRAFT POWERPLANT KIM, TAE JUN 3799 §103 Non-Final OA 31d overdue Pending Feb 20, 2024
18423848 HYBRID AIRCRAFT POWER PLANT AND GEARBOX THEREFOR DANG, TINH 3655 §112 Final Rejection 60d overdue Pending Jan 26, 2024
18423820 INJECTOR WITH SWIRLER FOR HYDROGEN-DRIVEN GAS TURBINE ENGINE HARRINGTON, ALYSON JOAN 3741 §103 Non-Final OA 10d overdue Pending Jan 26, 2024
18397120 POLISHING BLADED ROTOR USING ROBOTIC POLISHING DEVICE DELRUE, BRIAN CHRISTOPHER 3745 §103 Non-Final OA 12d Pending Dec 27, 2023
18392946 AIR SYSTEM FOR ELECTRICAL POWER STORAGE ONBOARD AN AIRCRAFT NGUYEN, NGOC T 3799 §103 Non-Final OA 40d Pending Dec 21, 2023
18527963 GAS TURBINE ENGINE AND METHOD OF OPERATION MCCAFFREY, KAYLA M 3745 §112 Non-Final OA 142d overdue Pending Dec 04, 2023
18514524 AIR SYSTEM FOR ELECTRICAL POWER STORAGE ONBOARD AN AIRCRAFT MALLON, BRETT PETERSON 3762 §103 Non-Final OA 34d Pending Nov 20, 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
18387258 Gas Turbine Engine Fuel System for an Aircraft Propulsion System SEBASCO CHENG, STEPHANIE 3741 §103 Non-Final OA 76d Pending Nov 06, 2023
18377453 ELECTRONIC ITEM MANAGEMENT FOR ITEM STORAGE AREA GLASS, RUSSELL S 3627 §103 Final Rejection 34d Pending Oct 06, 2023
18377186 CIRCUMFERENTIALLY TAILORED INLET GUARD FOR AN AIRCRAFT ENGINE INLET MEADE, LORNE EDWARD 3741 §103 Non-Final OA 28d Pending Oct 05, 2023
18372838 THREAD GUARD FOURNET II, BRIAN PAUL 3675 §103 Non-Final OA 9d Pending Sep 26, 2023
18372485 SYSTEM AND METHOD FOR IDENTIFYING RUBBING CONDITIONS FOR ENGINE ROTATIONAL EQUIPMENT GEIST, RICHARD EDWIN 3665 §103 Non-Final OA 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
18367265 ENGINE ASSEMBLY FOR AN AIRCRAFT PROPULSION SYSTEM REITZ, MICHAEL K. 3745 §103 Non-Final OA 61d Pending Sep 12, 2023
18367262 FUEL CONTAINMENT STRUCTURE FOR ENGINE FUEL DELIVERY SYSTEM IGUE, ROBERTO TOSHIHARU 3741 §103 Final Rejection 39d Pending Sep 12, 2023
18367078 METHOD OF MANUFACTURING A METAL INJECTION MOLDED PART SMITH, CATHERINE P 1735 §103 Non-Final OA 22d Pending Sep 12, 2023
18214248 AIRCRAFT POWERPLANT WITH MULTIPLE INDEPENDENT FUEL SYSTEMS IGUE, ROBERTO TOSHIHARU 3741 §103 Final Rejection 34d Pending Jun 26, 2023
18211977 Monitoring Health of an Aircraft Engine Using Replaceable Circuit Component SHAAWAT, MUSSA A 3669 §102 Final Rejection 46d Pending Jun 20, 2023
18211100 SYSTEM AND METHOD FOR TURBINE ENGINE TURBINE COMPONENT COOLING MEILLER, SEAN V 3741 §103 Non-Final OA 2d overdue Pending Jun 16, 2023
18129640 POWER COUPLING BETWEEN ENGINE ROTATING ASSEMBLY AND EXTERNAL DEVICE AMAR, MARC J 3741 §103 Final Rejection 5d Pending Mar 31, 2023
18116559 ADAPTIVE OVERHAUL USING CT SCAN SINGLE DATA SET KESSLER, CHRISTOPHER S 1759 Other Final Rejection 27d Pending Mar 02, 2023
18116588 ADAPTIVE MANUFACTURING USING AN ADAPTIVE MANUFACTURING TOOLPATH KESSLER, CHRISTOPHER S 1759 Other Final Rejection 27d Pending Mar 02, 2023
18116580 ADAPTIVE MANUFACTURING USING A CT SCAN AND AN ADAPTIVE MANUFACTURING TOOLPATH KESSLER, CHRISTOPHER S 1759 Other Final Rejection 27d Pending Mar 02, 2023
18108132 ADAPTIVE OVERHAUL USING STRUCTURED LIGHT SINGLE DATA SET KESSLER, CHRISTOPHER S 1759 Other Final Rejection 27d Pending Feb 10, 2023
18088221 HYBRID AIRCRAFT PROPULSION SYSTEM WITH REMOTELY LOCATED ELECTRIC MACHINE YANKEY, RYAN ANDREW 3642 §103 Final Rejection 40d Pending Dec 23, 2022
17942045 ADAPTIVE MANUFACTURING USING CT SCAN DATA KOSSEK, MAGDALENA IZABELLA 2117 §103 Non-Final OA 31d overdue Pending Sep 09, 2022
17879464 SYSTEM AND METHOD FOR ADDRESSING REDUNDANT SENSOR MISMATCH IN AN ENGINE CONTROL SYSTEM TURNBAUGH, ASHLEIGH NICOLE 3667 §103 Non-Final OA 7d Pending Aug 02, 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 Non-Final OA 2d overdue Pending Jul 15, 2022
17394302 SYSTEM AND METHOD FOR DESCRIBING A COMPONENT IN A COMPUTER-AIDED DESIGN (CAD) ENVIRONMENT MAUST, TROY A 2189 §112 Non-Final OA 3d overdue Pending Aug 04, 2021

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