Technology area: Medical Devices & Mechanical Engineering
55 pending office actions • 30 art units • 48 examiners • 0 of 55 (0%) have an AI response strategy ready • 348 patents granted in the last 365 days
Pratt & Whitney Canada Corp. has 56 pending office actions in Medical Devices & Mechanical Engineering. The matters involve 48 distinct examiners across 30 distinct art units, reflecting a broad prosecution operation with repeated assignments. Counsel should combine centralized docket visibility with structured analysis of art-unit trends, examiner treatment, and application-specific claim issues.
KIM, TAE JUN is the busiest examiner, with 3 pending actions. That concentration supports targeted review of the assigned matters, but the wider distribution means it cannot define the portfolio strategy. Reusable technical positions may improve efficiency when appropriate, provided each response remains grounded in its own record.
Based on the USPTO statutory response window for each pending office action. 14 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.
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. 14 of the docket's apps have a known mailing date.
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.
| Bucket | Cases |
|---|---|
| §101 + other | 2 (4%) |
| §103 only | 24 (44%) |
| §102 only | 2 (4%) |
| §112 only | 5 (9%) |
| Multi-statute (no §101) | 22 (40%) |
How the docket's pending cases split across USPTO tech-center bands.
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.
| Examiner | Apps on this docket | Allow rate | Interview lift |
|---|---|---|---|
| MEILLER, SEAN V | 3 | 74.1% | +38.3% |
| RIEGELMAN, MICHAEL A | 2 | 78.3% | +14.7% |
| OLYNICK, DAVID | 2 | 78.0% | +23.8% |
| SEHN, MICHAEL L | 2 | 81.2% | +12.7% |
| KIM, TAE JUN | 2 | 63.9% | +25.8% |
| SILVA, FRANK ALEXIS | 2 | 28.3% | +50.3% |
| GREEN, RICHARD R | 1 | 74.7% | +22.7% |
| BONZELL, PHILIP J | 1 | 78.6% | +12.3% |
| CHAU, ALAIN | 1 | 80.6% | +25.5% |
| SUNG, GERALD LUTHER | 1 | 79.9% | +28.6% |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 18733582 | DRAIN SHIELD | SEHN, MICHAEL L | — |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 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 |
| 18367078 | METHOD OF MANUFACTURING A METAL INJECTION MOLDED PART | SMITH, CATHERINE P | 22d |
| 18514524 | AIR SYSTEM FOR ELECTRICAL POWER STORAGE ONBOARD AN AIRCRAFT | MALLON, BRETT PETERSON | 34d |
| 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 | — |
| 19189991 | BYPASS VALVE | RIEGELMAN, MICHAEL A | — |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 18594925 | ENERGY GENERATING DEVICE | MEILLER, SEAN V | 43d 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 |
| 18807515 | ENGINE FUEL NOZZLE WITH COAXIAL FUEL AND AIR FLOWS | KIM, TAE JUN | 8d |
| 19310222 | CLUTCHED ELECTRIC POWERPLANT FOR AIRCRAFT PROPULSION SYSTEM | GREEN, RICHARD R | — |
| 19285079 | ELECTRIC AIRCRAFT ENGINE AND COMPRESSOR FOR ENGINE RETROFIT | BONZELL, PHILIP J | — |
| 19231131 | GASEOUS FUEL NOZZLE FOR TURBINE ENGINE POWERPLANT | CHAU, ALAIN | — |
| 19189991 | BYPASS VALVE | RIEGELMAN, MICHAEL A | — |
| Art Unit | Apps |
|---|---|
| 3741 | 15 |
| 3745 | 5 |
| 2859 | 3 |
| 3642 | 2 |
| 3654 | 2 |
| 2855 | 2 |
| 3799 | 2 |
| 3763 | 2 |
| 3647 | 1 |
| 3632 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19310222 | CLUTCHED ELECTRIC POWERPLANT FOR AIRCRAFT PROPULSION SYSTEM | GREEN, RICHARD R | 3647 | §102§103 | Non-Final OA | — | Pending | Aug 26, 2025 |
| 19285079 | ELECTRIC AIRCRAFT ENGINE AND COMPRESSOR FOR ENGINE RETROFIT | BONZELL, PHILIP J | 3642 | §103 | Non-Final OA | — | Pending | Jul 30, 2025 |
| 19231131 | GASEOUS FUEL NOZZLE FOR TURBINE ENGINE POWERPLANT | CHAU, ALAIN | 3741 | §102§103 | Non-Final OA | — | Pending | Jun 06, 2025 |
| 19189991 | BYPASS VALVE | RIEGELMAN, MICHAEL A | 3654 | §102§103 | Non-Final OA | — | Pending | Apr 25, 2025 |
| 19068794 | Hybrid Electric Propulsion System with Start Sequence and Shutdown Sequence | SUNG, GERALD LUTHER | 3741 | §112 | Non-Final OA | — | Pending | Mar 03, 2025 |
| 19048332 | METHOD AND APPARATUS FOR ENGINE HOT SECTION MAINTENANCE | MARSH, STEVEN M | 3632 | §112 | Non-Final OA | — | Pending | Feb 07, 2025 |
| 19044310 | FLEX COUPLER FOR HYBRID GAS TURBINE ENGINE POWERPLANT | OLYNICK, DAVID | 3741 | §102§103 | Non-Final OA | — | Pending | Feb 03, 2025 |
| 19041622 | GEARBOX WITH INTEGRATED MECHANICAL DISCONNECT | PERVIN, FARHANA | 3655 | §102§103 | Non-Final OA | — | Pending | Jan 30, 2025 |
| 19036890 | COMPRESSOR BLEED SLOT DIFFUSER | AMAR, MARC J | 3741 | §103 | Final Rejection | — | Pending | Jan 24, 2025 |
| 19032892 | GAS TURBINE ENGINE WITH A ROTOR STAGE SHROUD | SEHN, MICHAEL L | 3745 | §102§103 | Non-Final OA | — | Pending | Jan 21, 2025 |
| 18973948 | INTERNAL COMBUSTION ENGINE WITH MONOLITHIC PILOT CHAMBER STRUCTURE | NGUYEN, HOANG M | 3746 | §102§103 | Non-Final OA | — | Pending | Dec 09, 2024 |
| 18949285 | LUBRICANT SYSTEM | RIEGELMAN, MICHAEL A | 3654 | §103 | Non-Final OA | — | Pending | Nov 15, 2024 |
| 18938369 | METHOD AND SYSTEM FOR DETECTING A SHAFT SHEAR EVENT | GRAVES, TIMOTHY P | 2855 | §102§103§112Other | Non-Final OA | — | Pending | Nov 06, 2024 |
| 18934863 | SHAFT ASSEMBLY FOR A GAS TURBINE ENGINE | CHRISTENSEN, DANIELLE M | 3745 | §102 | Non-Final OA | — | Pending | Nov 01, 2024 |
| 18927562 | MULTIPLE LOADS PATHS FOR VIBRATION MITIGATION AND IMPROVED TIP CLEARANCE IN TURBOFAN ENGINE | KANG, EDWIN G | 3741 | §103 | Non-Final OA | — | Pending | Oct 25, 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 | Non-Final OA | — | Pending | Oct 16, 2024 |
| 18913888 | BATTERY MANAGEMENT SYSTEM TEMPERATURE SENSING SYSTEMS AND METHODS | PEDERSEN, DAVID RUBEN | 3658 | §103 | Final Rejection | — | Pending | Oct 11, 2024 |
| 18893353 | AIRCRAFT ENGINE OIL JET WITH INDUCED SWIRLING | OLYNICK, DAVID | 3741 | §103 | Final Rejection | — | Pending | Sep 23, 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 |
| 18795587 | SPOOL VALVE FOR AIRCRAFT ENGINE | CARY, KELSEY E | 3753 | §102§103 | Final Rejection | — | Pending | Aug 06, 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 |
| 18761549 | PARTIAL EXIT CENTRIFUGAL COMPRESSOR | MEILLER, SEAN V | 3741 | §103 | Final Rejection | — | Pending | Jul 02, 2024 |
| 18736838 | PULSE-MANAGED PLASMA METHOD FOR COATING ON INTERNAL SURFACES OF WORKPIECES | TUROCY, DAVID P | 1718 | §103 | Final Rejection | — | Pending | Jun 07, 2024 |
| 18733582 | DRAIN SHIELD | SEHN, MICHAEL L | 3745 | §102 | Final Rejection | — | Pending | Jun 04, 2024 |
| 18733571 | EFFUSION COOLED FUEL NOZZLE TIP | BURKE, THOMAS P | 3741 | §103 | Non-Final OA | 25d overdue | Pending | Jun 04, 2024 |
| 18733040 | METHOD OF MANUFACTURING A PART OF AN AIRCRAFT ENGINE, AND SYSTEM THEREFOR | ISLAM, MOHAMMAD K | 2857 | §102§112 | Non-Final OA | — | Pending | Jun 04, 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 |
| 18649180 | HEAT EXCHANGER HAVING A MIXING CHAMBER WITH CONVERGENT SECTION | LING, FOR K. | 3763 | §103§112 | Non-Final OA | — | Pending | Apr 29, 2024 |
| 18634181 | PISTON RING WITH INTEGRATED ANTI-ROTATION FEATURE | FOSTER, NICHOLAS L | 3675 | §102§103 | Non-Final OA | — | Pending | Apr 12, 2024 |
| 18631522 | RAW MATERIAL BUILD-UP USING ADDITIVE MANUFACTURING | MCGUTHRY BANKS, TIMA MICHELE | 1733 | §102§103 | 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 | 2858 | §101§103 | Non-Final OA | — | Pending | Mar 20, 2024 |
| 18594925 | ENERGY GENERATING DEVICE | MEILLER, SEAN V | 3741 | §103 | Final Rejection | 43d overdue | Pending | Mar 04, 2024 |
| 18441453 | GAS TURBINE ENGINE CONFIGURATION FOR CONTAINMENT TESTING | WONG, ELTON K | 3745 | §103 | Final Rejection | — | Pending | Feb 14, 2024 |
| 18435601 | SYSTEM AND METHOD FOR CONTROLLING AN AIRCRAFT BATTERY ASSEMBLY | SILVA, FRANK ALEXIS | 2859 | §102§103 | Non-Final OA | — | Pending | Feb 07, 2024 |
| 18435580 | AIRCRAFT BATTERY CHARGING SYSTEM AND METHOD | SILVA, FRANK ALEXIS | 2859 | §103 | Non-Final OA | — | Pending | Feb 07, 2024 |
| 18435563 | AIRCRAFT BATTERY CHARGING SYSTEM AND METHOD | FUREMAN, JARED | 2859 | §102§103 | Non-Final OA | — | Pending | Feb 07, 2024 |
| 18423820 | INJECTOR WITH SWIRLER FOR HYDROGEN-DRIVEN GAS TURBINE ENGINE | HARRINGTON, ALYSON JOAN | 3741 | §112 | Final Rejection | 10d overdue | Pending | Jan 26, 2024 |
| 18405113 | TORQUE MEASUREMENT SYSTEM FOR AIRCRAFT ENGINES | PARCO JR, RUBEN C | 2853 | §103 | Non-Final OA | — | Pending | Jan 05, 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 | Non-Final OA | 12d | Pending | Dec 27, 2023 |
| 18514524 | AIR SYSTEM FOR ELECTRICAL POWER STORAGE ONBOARD AN AIRCRAFT | MALLON, BRETT PETERSON | 3762 | §103§112 | Final Rejection | 34d | Pending | Nov 20, 2023 |
| 18387258 | Gas Turbine Engine Fuel System for an Aircraft Propulsion System | SEBASCO CHENG, STEPHANIE | 3741 | §103§112 | Final Rejection | 76d | Pending | Nov 06, 2023 |
| 18495973 | VANE OUTER SHROUD UNDERCUT GROOVE | NGUYEN, ANDREW H | 3741 | §103§112 | Non-Final OA | — | Pending | Oct 27, 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 |
| 18367078 | METHOD OF MANUFACTURING A METAL INJECTION MOLDED PART | SMITH, CATHERINE P | 1735 | §103§112 | Final Rejection | 22d | Pending | Sep 12, 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 |
| 18334494 | AIRCRAFT AND ASSOCIATED METHOD OF CONDITIONING CABIN AIR | JONES, GORDON A | 3763 | §103 | Final Rejection | — | Pending | Jun 14, 2023 |
IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.
Start Free TrialPratt & Whitney Canada Corp. has 55 pending office actions as of October 2026, spread across 30 art units and 48 examiners.
Sean V Meiller has the most, with 3 of Pratt & Whitney Canada Corp.'s pending office actions.
Mostly Medical Devices & Mechanical Engineering (USPTO Tech Center 3700), based on where its pending office actions are examined.
