Prosecution Insights
Last updated: October 04, 2026

Spirit AeroSystems Inc.

Technology areas: Chemistry & Materials • Medical Devices & Mechanical Engineering

11 pending office actions • 9 art units • 11 examiners • 0 of 11 (0%) have an AI response strategy ready • 11 patents granted in the last 365 days

Analysis

Spirit AeroSystems Inc. currently manages 11 pending office actions within the Chemistry & Materials technology area. This portfolio demonstrates a high degree of examiner diversity, as the pending matters are distributed across 11 distinct examiners. This distribution suggests that prosecution strategies must be tailored to a wide variety of individual examiner preferences rather than a centralized group of officials.

The organizational breadth of the portfolio is further evidenced by its presence in 9 distinct art units. While the workload is spread across many officials, JOEL DILLON CRANDALL is identified as the busiest examiner for the company. However, even this busiest examiner is only responsible for 1 pending office action, indicating that no single individual or specific art unit dominates the current prosecution landscape for the firm. Practitioners should prepare for a fragmented prosecution environment where examiners may apply varying interpretations across the 9 distinct art units involved.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Portfolio Summary

11
Total Pending OAs
6
Non-Final OAs
5
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 6 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

2
Overdue
0
Due this week
1
Due this month
2
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. 6 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (2)Due ≤ 30 days (1)Due ≤ 60 days (2)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.

6
Hard (55%)
5
Medium (45%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only5 (45%)
Multi-statute (no §101)6 (55%)

Industry Mix

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

6
Life Sciences
55% of docket
0
Information Tech
0% of docket
1
Communications
9% of docket
0
Semiconductors
0% of docket
3
Mechanical / Eng
27% of docket
1
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.

110 h
Manual time on pending OAs
22 h
Time saved (low, 20%)
38 h
Time saved (mid, 35%)
1.0 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
CRANDALL, JOEL DILLON 1 59.4% +21.6%
MCKINNON, LASHAWNDA T 1 53.9% +30.2%
TRAN, THIEN S 1 71.9% +24.1%
KOCH, GEORGE R 1 72.9% +17.3%
BEARD, CHARLES LLOYD 1 67.9% +35.0%
SAETHER, FLEMMING 1 65.1% +27.9%
GROUX, JENNIFER LILA 1 34.8% +39.3%
LEYSON, JOSEPH S 1 66.3% +35.9%
RUFO, LOUIS J 1 54.4% +22.9%
BARTLETT, VICTORIA 1 51.3% +30.2%

Hard Cases (6)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 6 ordered by deadline are shown.

App #TitleExaminerDue in
17982653 METHOD FOR CONTROL OF SEMI-CRYSTALLINE THERMOPLASTIC MELT FRONT IN OUT OF AUTOCLAVE PROCESSING BARTLETT, VICTORIA 27d
18356719 INDEXING BOLT FOR JOINING COMPOSITE FORM PIECES TOGETHER SAETHER, FLEMMING 61d
18630511 DEBURR TOOL CRANDALL, JOEL DILLON —
18512370 COMPOSITE LAMINATE HEATING TOOL AND METHOD FOR FORMING SAME TRAN, THIEN S —
18325835 METHOD FOR FABRICATION OF A CERAMIC MATRIX COMPOSITE PART LEYSON, JOSEPH S —
17982129 METHOD OF BONDING METALLIC COMPONENTS TO FORM MACHINING PREFORM FERDOUSI, FAHMIDA NMN —

Interview Candidates (10)

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
18326710 MODULAR BUILD PLATE AND METHOD FOR ADDITIVE MANUFACTURING GROUX, JENNIFER LILA 22d overdue
18111828 SYSTEM AND METHOD FOR PRODUCING SUPERALLOYS UTILIZING ELECTRO-METALLURGY RUFO, LOUIS J 4d overdue
17982653 METHOD FOR CONTROL OF SEMI-CRYSTALLINE THERMOPLASTIC MELT FRONT IN OUT OF AUTOCLAVE PROCESSING BARTLETT, VICTORIA 27d
18453407 SYSTEM AND METHOD FOR LOCATING AND VISUALIZING CAMERA IMAGES IN RELATION TO A LARGE-SCALE MANUFACTURING PRODUCT BEARD, CHARLES LLOYD 40d
18419275 CERAMIC MATRIX COMPOSITE SANDWICH STRUCTURE AND METHOD OF MANUFACTURE MCKINNON, LASHAWNDA T 46d
18356719 INDEXING BOLT FOR JOINING COMPOSITE FORM PIECES TOGETHER SAETHER, FLEMMING 61d
18630511 DEBURR TOOL CRANDALL, JOEL DILLON —
18512370 COMPOSITE LAMINATE HEATING TOOL AND METHOD FOR FORMING SAME TRAN, THIEN S —

Top Art Units

Art UnitApps
1744 2
3723 1
1789 1
1745 1
2611 1
3675 1
1754 1
1795 1
3761 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18630511 DEBURR TOOL CRANDALL, JOEL DILLON 3723 §102§103§112 Non-Final OA — Pending Apr 09, 2024
18419275 CERAMIC MATRIX COMPOSITE SANDWICH STRUCTURE AND METHOD OF MANUFACTURE MCKINNON, LASHAWNDA T 1789 §103 Non-Final OA 46d Pending Jan 22, 2024
18512370 COMPOSITE LAMINATE HEATING TOOL AND METHOD FOR FORMING SAME TRAN, THIEN S — §102§103 Non-Final OA — Pending Nov 17, 2023
18460468 MAXIMIZING THE LAMINATE QUALITY AND STRENGTH OF CURVED COMPOSITE STRUCTURAL COMPONENTS MANUFACTURED WITH AUTOMATED FIBER PLACEMENT (AFP) TECHNOLOGIES KOCH, GEORGE R 1745 §103 Non-Final OA — Pending Sep 01, 2023
18453407 SYSTEM AND METHOD FOR LOCATING AND VISUALIZING CAMERA IMAGES IN RELATION TO A LARGE-SCALE MANUFACTURING PRODUCT BEARD, CHARLES LLOYD 2611 §103 Final Rejection 40d Pending Aug 22, 2023
18356719 INDEXING BOLT FOR JOINING COMPOSITE FORM PIECES TOGETHER SAETHER, FLEMMING 3675 §102§103 Final Rejection 61d Pending Jul 21, 2023
18326710 MODULAR BUILD PLATE AND METHOD FOR ADDITIVE MANUFACTURING GROUX, JENNIFER LILA 1754 §103 Final Rejection 22d overdue Pending May 31, 2023
18325835 METHOD FOR FABRICATION OF A CERAMIC MATRIX COMPOSITE PART LEYSON, JOSEPH S 1744 §103§112 Non-Final OA — Pending May 30, 2023
18111828 SYSTEM AND METHOD FOR PRODUCING SUPERALLOYS UTILIZING ELECTRO-METALLURGY RUFO, LOUIS J 1795 §103 Final Rejection 4d overdue Pending Feb 20, 2023
17982653 METHOD FOR CONTROL OF SEMI-CRYSTALLINE THERMOPLASTIC MELT FRONT IN OUT OF AUTOCLAVE PROCESSING BARTLETT, VICTORIA 1744 §102§103§112 Final Rejection 27d Pending Nov 08, 2022
17982129 METHOD OF BONDING METALLIC COMPONENTS TO FORM MACHINING PREFORM FERDOUSI, FAHMIDA NMN 3761 §103§112 Non-Final OA — Pending Nov 07, 2022

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