Prosecution Insights
Last updated: August 06, 2026

Cantor Colburn LLP - Pratt & Whitney

36 pending office actions • 2 clients • 34 examiners • 24 art units • 0 of 36 (0%) have an AI response strategy ready • 138 patents granted in the last 365 days

Quality Metrics (n=73473 apps, methodology: how we score firms)

88.1%
Allowance Rate
n=73473
+0.54σ
Allowance Rate (norm)
n=73473
3.2
OAs to Allowance
n=51629
-0.21σ
OAs to Allow (norm)
n=51629
1017 days
Time to Allowance
n=51629
+3.9pp
Interview Lift
n=73473
25.9%
RCE Rate
n=73473
2.1%
Appeal Rate
n=73473

Rejection Performance (% of received rejections ultimately overcome)

75.6%
§101 Overcome
n=3150
81.0%
§102 Overcome
n=23579
81.1%
§103 Overcome
n=36783
82.5%
§112 Overcome
n=23383

Specialization & Scale

H10K, G02F, G06F
Top CPC Subclasses
9%
Top-3 CPC Share
n=73473
68
Practitioners
n=73473
1080.5
Apps / Practitioner
n=73473

Portfolio Summary

36
Total Pending OAs
23
Non-Final OAs
11
Final Rejections
2
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 5 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

3
Overdue
0
Due this week
1
Due this month
0
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. 5 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (3)Due ≤ 30 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.

14
Hard (39%)
20
Medium (56%)
2
Easy (6%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other2 (6%)
§103 only16 (44%)
§102 only2 (6%)
§112 only2 (6%)
Double-patenting + other2 (6%)
Multi-statute (no §101)12 (33%)

Industry Mix

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

11
Life Sciences
31% of docket
4
Information Tech
11% of docket
2
Communications
6% of docket
2
Semiconductors
6% of docket
13
Mechanical / Eng
36% of docket
4
Business / Other
11% 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.

360 h
Manual time on pending OAs
72 h
Time saved (low, 20%)
126 h
Time saved (mid, 35%)
3.1 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
MEILLER, SEAN V 2 77.0% +37.7%
KESSLER, CHRISTOPHER S 2 60.0% +14.4%
ZAMORA ALVAREZ, ERIC J 1 88.6% +21.6%
WAITS, ALAN B 1 68.9% +29.6%
HANDVILLE, BRIAN 1 51.6% +28.1%
DUMBRIS, SETH M 1 76.3% +16.6%
MEADE, LORNE EDWARD 1 51.0% +39.6%
WANG, XIAOBEI 1 65.1% +48.3%
BUTLER, KEVIN C 1 89.5% +8.8%
BURKE, THOMAS P 1 43.8% +23.0%

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
18819304 ARTICLE AND METHOD FOR ACCURATELY POSITIONING OPTICAL TIP-TIMING PROBE BUTLER, KEVIN C

Hard Cases (14)

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
18366129 REMOTE UPDATES OF A GAS TURBINE ENGINE WEI, ZENGPU 8d overdue
19251142 FAN BLADE OR VANE WITH IMPROVED BIRD IMPACT CAPABILITY ZAMORA ALVAREZ, ERIC J
19013550 ROLLER BEARING COMPLIANT RACEWAY UNDERCUT WAITS, ALAN B
18826313 COATING PROTECTION FOR STATOR VANES AND METHODS OF PROTECTION THEREOF WANG, XIAOBEI
18428738 CERAMIC ABRADABLE COATING WITH CONTROLLABLE HARDNESS AND ABRADABILITY WIEHE, NATHANIEL EDWARD
18504812 BLENDED N-DOT AND RATIO UNIT REFERENCE ACCELERATION CONTROL ARCHITECTURE FOR GAS TURBINE ENGINE AMAR, MARC J
18484679 POWDER EXTRACTION TOOL SIDDIQUI, ADIL ABDUL WAJID
18326233 AUTOMATIC ADJUSTMENT OF PARAMETERS BASED ON PART SURFACE REFLECTIVE INDEX FOR POINT CLOUD ACQUISITION USING A BLUE LIGHT SCANNER MAHROUKA, WASSIM

Interview Candidates (11)

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
19065009 HYDROGEN TURBINE POWER ASSISTED CONDENSATION MEILLER, SEAN V 35d overdue
18919910 GAS TURBINE ENGINE WITH ELECTRICALLY DRIVEN COMPRESSOR MEADE, LORNE EDWARD 15d
19251142 FAN BLADE OR VANE WITH IMPROVED BIRD IMPACT CAPABILITY ZAMORA ALVAREZ, ERIC J
19013550 ROLLER BEARING COMPLIANT RACEWAY UNDERCUT WAITS, ALAN B
18953181 CERAMIC MATRIX COMPOSITE SURFACE ROUGHNESS HANDVILLE, BRIAN
18936360 SEALING FOR ANODIZED METAL DUMBRIS, SETH M
18826313 COATING PROTECTION FOR STATOR VANES AND METHODS OF PROTECTION THEREOF WANG, XIAOBEI
18774437 STAGED BLADE INJECTOR BURKE, THOMAS P

Client Portfolio (2 clients)

Client (Assignee)Pending OAs
RTX 35
University of Rhode Island Board of Trustees 1

Top Art Units

Art UnitApps
37415
37453
17842
17592
36171
37001
17891
21191
26621
17351

Pending Office Actions

App #TitleClientExaminerArt UnitStatutesStatusDue inAIFiled
19251142 FAN BLADE OR VANE WITH IMPROVED BIRD IMPACT CAPABILITY Rtx Corporation ZAMORA ALVAREZ, ERIC J 3745 §102§112 Non-Final OA Pending Jun 26, 2025
19065009 HYDROGEN TURBINE POWER ASSISTED CONDENSATION Rtx Corporation MEILLER, SEAN V 3741 §103 Non-Final OA 35d overdue Pending Feb 27, 2025
19013550 ROLLER BEARING COMPLIANT RACEWAY UNDERCUT Pratt & Whitney Canada Corp. WAITS, ALAN B 3617 §102§103§112 Non-Final OA Pending Jan 08, 2025
18953181 CERAMIC MATRIX COMPOSITE SURFACE ROUGHNESS Rtx Corporation HANDVILLE, BRIAN §102 Non-Final OA Pending Nov 20, 2024
18936360 SEALING FOR ANODIZED METAL Rtx Corporation DUMBRIS, SETH M §103 Non-Final OA Pending Nov 04, 2024
18919910 GAS TURBINE ENGINE WITH ELECTRICALLY DRIVEN COMPRESSOR Rtx Corporation MEADE, LORNE EDWARD 3741 §103 Final Rejection 15d Pending Oct 18, 2024
18826313 COATING PROTECTION FOR STATOR VANES AND METHODS OF PROTECTION THEREOF Rtx Corporation WANG, XIAOBEI 1784 §102§103§112 Final Rejection Pending Sep 06, 2024
18819304 ARTICLE AND METHOD FOR ACCURATELY POSITIONING OPTICAL TIP-TIMING PROBE Rtx Corporation BUTLER, KEVIN C §103 Non-Final OA Pending Aug 29, 2024
18774437 STAGED BLADE INJECTOR Rtx Corporation BURKE, THOMAS P 3741 §103 Non-Final OA Pending Jul 16, 2024
18761549 PARTIAL EXIT CENTRIFUGAL COMPRESSOR Pratt & Whitney Canada Corp. MEILLER, SEAN V 3741 §103 Non-Final OA Pending Jul 02, 2024
18677543 COOLING FEATURES FOR A COMPONENT OF A GAS TURBINE ENGINE Rtx Corporation KIM, SANG K 3745 §103 Final Rejection Pending May 29, 2024
18441453 GAS TURBINE ENGINE CONFIGURATION FOR CONTAINMENT TESTING Pratt & Whitney Canada Corp. WONG, ELTON K 3745 §103 Non-Final OA Pending Feb 14, 2024
18428738 CERAMIC ABRADABLE COATING WITH CONTROLLABLE HARDNESS AND ABRADABILITY Rtx Corporation WIEHE, NATHANIEL EDWARD 3700 §103§112 Final Rejection Pending Jan 31, 2024
18411216 HIGH TEMPERATURE FIBER, METHOD OF MAKING AND HIGH TEMPERATURE FIBER COMPOSITES Rtx Corporation SALVATORE, LYNDA 1789 §102 Final Rejection Pending Jan 12, 2024
18528989 COMPRESSOR INNER AIR SEAL AND METHOD OF MAKING Rtx Corporation COLLISTER, ELIZABETH A 1784 §103 Final Rejection Pending Dec 05, 2023
18504812 BLENDED N-DOT AND RATIO UNIT REFERENCE ACCELERATION CONTROL ARCHITECTURE FOR GAS TURBINE ENGINE Pratt & Whitney Canada Corp. AMAR, MARC J 3741 §103§112 Non-Final OA Pending Nov 08, 2023
18387534 ADDITIVE MANUFACTURED COMPONENT INCLUDING WITNESS LINES Rtx Corporation KABIR, SAAD M 2119 §103 Non-Final OA Pending Nov 07, 2023
18493470 HYBRID BEARING FORGED FLANGE Rtx Corporation KESSLER, CHRISTOPHER S 1759 §102§103§112DP Non-Final OA Pending Oct 24, 2023
18493458 HYBRID BEARING FORGED FLANGE Rtx Corporation KESSLER, CHRISTOPHER S 1759 §102§112DP Non-Final OA Pending Oct 24, 2023
18491300 DEFECT DEPTH ESTIMATION FROM BORESCOPE IMAGERY Rtx Corporation YANG, JIANXUN 2662 §103 Non-Final OA Pending Oct 20, 2023
18484679 POWDER EXTRACTION TOOL Rtx Corporation SIDDIQUI, ADIL ABDUL WAJID 1735 §102§103 Non-Final OA Pending Oct 11, 2023
18366129 REMOTE UPDATES OF A GAS TURBINE ENGINE Rtx Corporation WEI, ZENGPU 2197 §103§112 Final Rejection 8d overdue Pending Aug 07, 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 §103§112 Non-Final OA Pending May 31, 2023
18194937 PROBABILISTIC MODEL, SYSTEM AND APPLICATION FOR COMPONENT DESIGN OPTIMIZATION Raytheon Technologies Corporation CIRNU, ALEXANDRU §101§102§103§112 Non-Final OA Pending Apr 03, 2023
18173348 METHOD FOR DESIGNING ARCHITECTURE FOR MICROWAVE COMMUNICATION AND POWER NETWORKS Raytheon Technologies Corporation HOCKER, JOHN PAUL 2189 §101§102§112 Non-Final OA Pending Feb 23, 2023
18168836 POWER BEAMING OF MICROWAVE RADIATION FOR ANTI-ICING Raytheon Technologies Corporation BACHNER, ROBERT G 2898 §103 Non-Final OA Pending Feb 14, 2023
18162860 SELECTIVE HEAT TREATMENT OF METALS USING MULTIPLE INDUCTION HEATING COILS Rtx Corporation MORALES, RICARDO D 1738 §102§103 Final Rejection Pending Feb 01, 2023
18162851 SINGLE-STEP PROCESS FOR SELECTIVE HEAT TREATMENT OF METALS USING MULTIPLE HEATING SOURCES Rtx Corporation MCGUTHRY BANKS, TIMA MICHELE 1733 §112 Non-Final OA Pending Feb 01, 2023
18083976 SACRIFICIAL YARNS FOR USE IN CERAMIC MATRIX COMPOSITES, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME Rtx Corporation AUER, LAURA A 1783 §102§103 Non-Final OA Pending Dec 19, 2022
18071141 INTEGRATED THRUST REVERSER AND BRAKE CONTROL FOR AN AIRCRAFT Rtx Corporation HINTON, HENRY R 3665 §103§112 Non-Final OA Pending Nov 29, 2022
18071138 FINAL TAKEOFF SPEED DETERMINATION FOR AN AIRCRAFT Rtx Corporation ALKIRSH, AHMED 3668 §103 Final Rejection Pending Nov 29, 2022
17992101 ELECTRICAL CONNECTIVITY TO HIGH TEMPERATURE FILM SENSOR DEVICES University of Rhode Island Board of Trustees MANCINI, EVAN THOMAS 2855 §103 Non-Final OA 62d Pending Nov 22, 2022
17891763 CENTRALIZED SECURITY APPROVAL FOR DISTRIBUTED DECENTRALIZED CONTROL SYSTEMS FOR AIRCRAFT ENGINES Raytheon Technologies Corporation KHADKA, AMIT 2432 §103 Final Rejection Pending Aug 19, 2022
17738513 WELD REPAIR SYSTEM Raytheon Technologies Corporation LIU, CHRIS Q 3761 §102§112 Final Rejection Pending May 06, 2022
17132215 METHOD FOR METAL VAPOR INFILTRATION OF CMC PARTS AND ARTICLES CONTAINING THE SAME Rtx Corporation TUROCY, DAVID P 1718 §112 Non-Final OA 70d overdue Pending Dec 23, 2020
16723360 REINFORCED CERAMIC MATRIX COMPOSITE AND METHOD OF MANUFACTURE UNITED TECHNOLOGIES CORPORATION BEHRENS JR., ANDRES E 1741 §103 Non-Final OA Pending Dec 20, 2019

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