Prosecution Insights
Last updated: August 17, 2026

Rolls-Royce plc

87 pending office actions • 31 art units • 77 examiners • 0 of 87 (0%) have an AI response strategy ready • 233 patents granted in the last 365 days

Portfolio Summary

87
Total Pending OAs
57
Non-Final OAs
25
Final Rejections
5
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 25 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

12
Overdue
0
Due this week
8
Due this month
3
Due in next 60 days
2
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. 25 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (12)Due ≤ 30 days (8)Due ≤ 60 days (3)Due later (2)

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.

41
Hard (47%)
37
Medium (43%)
9
Easy (10%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only2 (2%)
§101 + other4 (5%)
§103 only33 (38%)
§102 only3 (3%)
§112 only8 (9%)
Double-patenting only1 (1%)
Double-patenting + other1 (1%)
Multi-statute (no §101)35 (40%)

Industry Mix

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

13
Life Sciences
15% of docket
2
Information Tech
2% of docket
1
Communications
1% of docket
10
Semiconductors
11% of docket
38
Mechanical / Eng
44% of docket
23
Business / Other
26% 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.

870 h
Manual time on pending OAs
174 h
Time saved (low, 20%)
304 h
Time saved (mid, 35%)
7.6 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KIM, TAE JUN 4 63.9% +26.1%
DUGER, JASON H 3 70.5% +51.4%
NG, HENRY 2 63.6% +58.2%
NOVAK, PETER MICHAEL 2 88.4% +8.5%
BURKE, THOMAS P 2 43.8% +23.0%
BUTLER, KEVIN C 2 89.5% +8.8%
HARRINGTON, ALYSON JOAN 2 74.9% +64.3%
FLORES, JUAN G 1 79.3% +14.7%
WALTHOUR, SCOTT J 1 78.5% +69.8%
THOMAS, KYLE ROBERT 1 72.5% +29.3%

Quick Wins (2)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18660436 POWER ELECTRONICS CONVERTER NOVAK, PETER MICHAEL 22d
18791814 PROBE BUTLER, KEVIN C

Hard Cases (41)

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
17556211 HYDROGEN STORAGE TANK WITH LEAK MANAGEMENT FUNCTIONALITY PATEL, SUHANI JITENDRA 140d overdue
18771137 METHOD OF MANUFACTURING A COMPONENT OF A GAS TURBINE ENGINE PENNY, TABATHA L 128d overdue
18732814 HEAT EXCHANGER JONES, GORDON A 44d overdue
18892678 FUEL SPRAY NOZZLES KIM, TAE JUN 26d overdue
19228821 LEAN BURN COMBUSTOR DUGER, JASON H 23d overdue
18738941 BATTERY HEALTH DETERMINATION APPARATUS AND METHOD LE, SON T 16d overdue
19021605 GAS TURBINE ENGINE HEAT EXCHANGE CHABREYRIE, RODOLPHE ANDRE 2d overdue
18016777 REFUELLING AND/OR STORAGE NEUTRON-ABSORBING RODS DAVIS, SHARON M 1d overdue

Interview Candidates (16)

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
18892678 FUEL SPRAY NOZZLES KIM, TAE JUN 26d overdue
19228821 LEAN BURN COMBUSTOR DUGER, JASON H 23d overdue
18892673 AIRCRAFT MISSION INDEX WITH SUSTAINABLE AVAITION FUEL VERSUS HYDROCARBRON BASED FUEL DUGER, JASON H 14d
19229076 ENGINE CORE SIZE NG, HENRY 30d
18892741 Engine Core Size NG, HENRY 30d
18741985 GAS TURBINE ENGINE FUEL SYSTEM KIM, TAE JUN 36d
18949542 COMBUSTION EQUIPMENT FOR A GAS TURBINE ENGINE KIM, TAE JUN 84d
19376364 FLUID FLOW MACHINE AND RELATED METHOD FLORES, JUAN G

Top Art Units

Art UnitApps
3741 15
3745 5
3799 4
3761 3
2858 3
2836 2
3642 2
3762 2
1734 2
3646 2

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19376364 FLUID FLOW MACHINE AND RELATED METHOD FLORES, JUAN G 3745 §103§112 Non-Final OA Pending Oct 31, 2025
19364678 GAS TURBINE PERFORMANCE WALTHOUR, SCOTT J 3741 §102 Non-Final OA Pending Oct 21, 2025
19323341 GAS TURBINE ENGINE THOMAS, KYLE ROBERT 3741 §103 Final Rejection Pending Sep 09, 2025
19283496 ELECTRICAL POWER SYSTEM AND METHOD OF CONTROL LY, XUAN 2836 §101§103 Non-Final OA Pending Jul 29, 2025
19228821 LEAN BURN COMBUSTOR DUGER, JASON H 3741 §103§112 Final Rejection 23d overdue Pending Jun 05, 2025
19229076 ENGINE CORE SIZE NG, HENRY 3741 §103§112 Final Rejection 30d Pending Jun 05, 2025
19218930 METHOD AND APPARATUS FOR HEATING A FLOW OF HYDROGEN GREENE, MARK L 3747 §102§103§112 Non-Final OA Pending May 27, 2025
19202055 BRUSH SEAL KONERU, LAKSHMI S 3675 §103 Non-Final OA Pending May 08, 2025
19180117 GAS TURBINE ENGINE CHAU, ALAIN 3741 §103§112 Non-Final OA Pending Apr 15, 2025
19173071 CABIN BLOWER CONTROL SYSTEM AND METHOD DAVIS, JASON GREGORY 3745 §101§112 Non-Final OA Pending Apr 08, 2025
19077144 POWER ELECTRONICS CONVERTER INGE, JOSEPH N 2836 §103 Non-Final OA Pending Mar 12, 2025
19049772 THERMAL BARRIER STRUCTURE AND COATING VO, HAI §102§103§112 Non-Final OA Pending Feb 10, 2025
19045864 SYSTEM AND METHOD FOR ASSEMBLING A FAN CASE OF A GAS TURBINE ENGINE RIVERA, JOSHEL §102 Non-Final OA Pending Feb 05, 2025
19021605 GAS TURBINE ENGINE HEAT EXCHANGE CHABREYRIE, RODOLPHE ANDRE 3761 §103§112Other Final Rejection 2d overdue Pending Jan 15, 2025
19014705 MULTIPHASE ELECTRICAL MACHINE CONDITION MONITORING RIOS RUSSO, RAUL J §112 Non-Final OA Pending Jan 09, 2025
19009039 POWER ELECTRONICS MODULE CONDITION MONITORING ZAKARIA, AKM 2858 §112 Non-Final OA Pending Jan 03, 2025
18980072 DC:DC POWER CONVERTER NOVAK, PETER MICHAEL §102§103§112 Non-Final OA Pending Dec 13, 2024
18969412 AIRCRAFT MEILLER, SEAN V 3741 §103§112 Non-Final OA 26d Pending Dec 05, 2024
18967800 POSITIVE DISPLACEMENT PUMP SYSTEM DAVIS, MARY ALICE 3746 §103 Non-Final OA 34d Pending Dec 04, 2024
18960510 VARIABLE STIFFNESS TOOL MELENDEZ, ARMAND 1759 §102§103 Non-Final OA Pending Nov 26, 2024
18954875 IMAGING WERNER, DAVID N 2877 §102§103 Non-Final OA Pending Nov 21, 2024
18952295 METHOD AND CONTROLLER FOR CONTROLLING A VAPOUR-COMPRESSION SYSTEM WITH THERMODYNAMIC CONSTRAINTS SATISFACTION BRADFORD, JONATHAN §103 Non-Final OA Pending Nov 19, 2024
18952302 FUEL SPRAY NOZZLE FOR A GAS TURBINE ENGINE KIM, CRAIG SANG §103 Non-Final OA Pending Nov 19, 2024
18949542 COMBUSTION EQUIPMENT FOR A GAS TURBINE ENGINE KIM, TAE JUN 3799 §102§103§112 Non-Final OA 84d Pending Nov 15, 2024
18948716 METHOD FOR REDUCING DAMAGE TO COMPONENTS OF GAS TURBINE ENGINES HTAY, AYE SU MON 3745 §103 Final Rejection 4d overdue Pending Nov 15, 2024
18948019 METHOD FOR SCANNING A COMPONENT KAO, CHIH CHENG G §103 Non-Final OA Pending Nov 14, 2024
18944372 BLADE MONITORING DULANEY, BENJAMIN O §101§112 Non-Final OA Pending Nov 12, 2024
18944908 DETERMINING PROPERTIES ASSOCIATED WITH SHROUD GAPS SAJOUS, WESNER §112 Non-Final OA Pending Nov 12, 2024
18936481 FUEL DELIVERY NGUYEN, THUYHANG NGOC 3761 §103 Final Rejection Pending Nov 04, 2024
18907918 AN IMPROVED GAS TURBINE ENGINE BURKE, THOMAS P 3741 §103§112 Non-Final OA Pending Oct 07, 2024
18907721 SOLENOID FAULT DETECTION ADNAN, MUHAMMAD §102§103 Non-Final OA Pending Oct 07, 2024
18907952 AN IMPROVED GAS TURBINE ENGINE BURKE, THOMAS P 3741 §103§112 Non-Final OA Pending Oct 07, 2024
18906737 ELECTRICAL MACHINE CONDITION MONITORING GONZALEZ QUINONES, JOSE A §102§103 Non-Final OA Pending Oct 04, 2024
18892707 LEAN BURN COMBUSTOR DUGER, JASON H 3741 §103§112 Final Rejection Pending Sep 23, 2024
18892741 Engine Core Size NG, HENRY 3741 §103§112 Final Rejection 30d Pending Sep 23, 2024
18892678 FUEL SPRAY NOZZLES KIM, TAE JUN 3799 §103§112 Final Rejection 26d overdue Pending Sep 23, 2024
18892673 AIRCRAFT MISSION INDEX WITH SUSTAINABLE AVAITION FUEL VERSUS HYDROCARBRON BASED FUEL DUGER, JASON H 3741 §103 Final Rejection 14d Pending Sep 23, 2024
18825092 ENGINE CONTROL AND MONITORING SYSTEM HEIBER, SHANTELL LAKETA §102§103DP Non-Final OA Pending Sep 05, 2024
18791814 PROBE BUTLER, KEVIN C §103 Non-Final OA Pending Aug 01, 2024
18729431 AIRCRAFT WING COMPRISING A STORAGE TANK FOR GASEOUS HYDROGEN GORDON, ANNA L 3642 §112 Non-Final OA Pending Jul 16, 2024
18771137 METHOD OF MANUFACTURING A COMPONENT OF A GAS TURBINE ENGINE PENNY, TABATHA L 1712 §102§103§112 Non-Final OA 128d overdue Pending Jul 12, 2024
18768149 POWER ELECTRONICS CONVERTER MONSUR, NASIMA 2858 §102 Non-Final OA 15d overdue Pending Jul 10, 2024
18764516 GAS TURBINE ENGINE STARTING METHOD KIM, TAE JUN 3799 §103 Final Rejection Pending Jul 05, 2024
18753161 GAS TURBINE HEAT EXCHANGER HARRINGTON, ALYSON JOAN 3741 §112 Final Rejection Pending Jun 25, 2024
18752004 INSPECTION MERCADO, ALEXANDER A §103§112 Non-Final OA Pending Jun 24, 2024
18747619 PROBE AND METHOD FOR NON-DESTRUCTIVE TESTING OF A COMPONENT BUTLER, KEVIN C §102§103 Non-Final OA Pending Jun 19, 2024
18741985 GAS TURBINE ENGINE FUEL SYSTEM KIM, TAE JUN 3799 §103§112 Non-Final OA 36d Pending Jun 13, 2024
18738941 BATTERY HEALTH DETERMINATION APPARATUS AND METHOD LE, SON T 2858 §102§103§112 Final Rejection 16d overdue Pending Jun 10, 2024
18738784 FUEL SYSTEM MALATEK, KATHERYN A 3741 §103 Non-Final OA Pending Jun 10, 2024
18732814 HEAT EXCHANGER JONES, GORDON A 3763 §102§103 Non-Final OA 44d overdue Pending Jun 04, 2024
18660436 POWER ELECTRONICS CONVERTER NOVAK, PETER MICHAEL 2838 §103 Final Rejection 22d Pending May 10, 2024
18701722 FUEL CELL SYSTEM GATEWOOD, DANIEL S §112 Non-Final OA Pending Apr 16, 2024
18609248 AIR PRESSURISATION SYSTEM CARTER, AMY ELIZABETH 3762 §103§112 Final Rejection Pending Mar 19, 2024
18593417 IN-SITU MODEL COMPARISON FOR ADDITIVE MANUFACTURING SYSTEMS DUNN, DARRIN D 2117 §103 Non-Final OA Pending Mar 01, 2024
18593465 POWDER CONTROL FOR ADDITIVE MANUFACTURING SYSTEMS TSUI, YUNG-SHENG M 1684 DP Non-Final OA Pending Mar 01, 2024
18593575 MASS AND HEAT FLOW IN ADDITIVE MANUFACTURING SYSTEMS WITH MACHINE LEARNING CONTROL STILES, JACOB BENJAMIN §103§112 Non-Final OA Pending Mar 01, 2024
18589542 BATTERY COOLING BLOCK MATHEW, ISWARYA §103 Non-Final OA Pending Feb 28, 2024
18588431 PODDED ENGINE ADAPTOR MICHENER, JOSHUA J 3642 §103§112 Final Rejection 16d Pending Feb 27, 2024
18442573 AIR PRESSURISATION SYSTEM WEINERT, WILLIAM C 3762 §103 Non-Final OA Pending Feb 15, 2024
18580364 COMPUTER-IMPLEMENTED METHODS, APPARATUS, COMPUTER PROGRAMS, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUMS LIANG, LEONARD S §101§102§103 Non-Final OA Pending Jan 18, 2024
18372836 METHOD OF OPERATING A GAS TURBINE ENGINE AMAR, MARC J 3741 §103§112 Final Rejection Pending Sep 26, 2023
18226972 ELECTRICAL-DISCHARGE MACHINING BACHNER, ROBERT G 2898 §103 Non-Final OA Pending Jul 27, 2023
18358242 METHOD OF MANUFACTURING A COMPONENT YANG, JIE 1734 §103 Non-Final OA Pending Jul 25, 2023
18215558 WOVEN FABRICS FOR COMPOSITE COMPONENTS MATZEK, MATTHEW D 1786 §103 Final Rejection Pending Jun 28, 2023
18038520 SYSTEM FOR REPLY GENERATION JACKSON, JAKIEDA R 2657 §112 Non-Final OA 34d Pending May 24, 2023
18197159 ABLATION TOOL KIM, SANG K 3745 §103 Final Rejection Pending May 15, 2023
18016777 REFUELLING AND/OR STORAGE NEUTRON-ABSORBING RODS DAVIS, SHARON M 3646 §102§103 Non-Final OA 1d overdue Pending Jan 18, 2023
17967603 ENGINEERING COMPONENTS OCHOA, JUAN CARLOS 2186 §103§112 Non-Final OA 62d Pending Oct 17, 2022
17917489 ABRASIVE MATERIAL, A METHOD FOR MANUFACTURING AN ABRASIVE MATERIAL AND A SUBSTRATE COATED WITH AN ABRASIVE MATERIAL PATEL, RONAK C 1788 §103 Final Rejection Pending Oct 06, 2022
17751054 AIRCRAFT BATTERY SYSTEMS SMITH, NICHOLAS A 1752 §103 Non-Final OA 127d overdue Pending May 23, 2022
17556211 HYDROGEN STORAGE TANK WITH LEAK MANAGEMENT FUNCTIONALITY PATEL, SUHANI JITENDRA 1783 §103§112 Non-Final OA 140d overdue Pending Dec 20, 2021
19008084 NOSECONES FOR TURBINE ENGINE DELRUE, BRIAN CHRISTOPHER 3745 §103 Non-Final OA Pending Jan 02, 2025
18667602 VEHICLE ELECTRICAL POWER SYNCHRONIZATION VIA HYDRAULICS QUIGLEY, THOMAS K 2834 §103 Final Rejection Pending May 17, 2024
18667616 VEHICLE ELECTRICAL POWER SYNCHRONIZATION VIA HYDRAULICS HARRINGTON, ALYSON JOAN 3741 §103 Final Rejection Pending May 17, 2024
18661009 QUANTIFYING MICROSTRUCTURAL FEATURES IN THERMAL SPRAY COATINGS USING IMAGE ANALYSIS TECHNIQUES BACA, MATTHEW WALTER §101 Non-Final OA Pending May 10, 2024
18417605 COOLING HOLE AIR FLOW FOR THERMAL SPRAY COATINGS THOMAS, BINU §103 Non-Final OA Pending Jan 19, 2024
18368803 SYSTEM FOR CONTROL OF EXTERNALLY HEATED TURBINE ENGINE BOGUE, JESSE SAMUEL 3646 §103Other Non-Final OA Pending Sep 15, 2023
18213561 METHOD OF FORMING A SMOOTH AS-FABRICATED CERAMIC MATRIX COMPOSITE (CMC) SURFACE GROSS, CARSON 1783 §103 Non-Final OA Pending Jun 23, 2023
18144425 AIRCRAFT DC POWER BUS REGULATION AND WING DE-ICER MACEDA, KRYSTENE NHE BANDONG 3761 §103§112 Final Rejection 29d Pending May 08, 2023
18899827 DYNAMIC DATA DELIVERABLE TOOL DELICH, STEPHANIE ZAGARELLA 3623 §101 Final Rejection Pending Sep 27, 2024
18813730 COATING SYSTEMS FOR SILICON-CONTAINING SUBSTRATES LA VILLA, MICHAEL EUGENE §103§112 Non-Final OA Pending Aug 23, 2024
18633076 POST DEPOSITION HEAT TREATMENT OF COATING ON SUBSTRATE BAREFORD, KATHERINE A 1718 §103 Non-Final OA 29d Pending Apr 11, 2024
18593438 FUNCTIONALLY GRADED MATERIALS FROM THERMAL PROCESSING WEN, KEVIN GUANHUA §103 Non-Final OA Pending Mar 01, 2024
18432988 METHOD FOR MAKING TURBINE ENGINE COMPONENTS USING METAL INJECTION MOLDING WANG, NICHOLAS A 1734 §112Other Final Rejection Pending Feb 05, 2024
18051237 ELECTRODE FOR PULSED ELECTROCHEMICAL MACHINING VAN, LUAN V 1795 §103§112 Non-Final OA Pending Oct 31, 2022
17887955 ELECTRIC MACHINE WITH AIR COOLED ROTOR STEFANON, JUSTIN 2834 §103 Non-Final OA Pending Aug 15, 2022
17661430 NON-ELECTROLYTIC DEPOSITION OF ELECTRODE FOR PULSED ELECTROCHEMICAL MACHINING WITTENBERG, STEFANIE S 1795 §103 Non-Final OA 2d overdue Pending Apr 29, 2022

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