Prosecution Insights
Last updated: October 04, 2026

Constellium Neuf-Brisach

Technology area: Chemistry & Materials

3 pending office actions • 2 art units • 3 examiners • 0 of 3 (0%) have an AI response strategy ready • 4 patents granted in the last 365 days

Analysis

Constellium Neuf-Brisach currently has 3 pending office actions within the Chemistry & Materials technology area. These matters are distributed across 2 distinct art units, which indicates that the company's technical filings in chemistry are broad enough to trigger review by different administrative groups. This distribution can lead to varying timelines and procedural requirements across the portfolio.

The prosecution involves 3 distinct examiners, meaning each active office action is being handled by a different individual. ALDAZ CERVANTES, MAYELA RENATA is identified as the busiest examiner, currently managing 1 pending office action. This even distribution across 3 distinct examiners suggests that no single examiner has a dominant influence over the company's current patenting efforts.

The use of 2 distinct art units for the 3 pending office actions shows a relatively high level of organizational diversity compared to the baseline of a single unit. Because each of the active matters is assigned to a different examiner, the company must manage separate prosecution tracks within the Chemistry & Materials field.

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

Portfolio Summary

3
Total Pending OAs
2
Non-Final OAs
1
Final Rejections
0
Advisory / Quayle

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 (67%)
1
Medium (33%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (33%)
Multi-statute (no §101)2 (67%)

Industry Mix

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

2
Life Sciences
67% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
0
Mechanical / Eng
0% of docket
1
Business / Other
33% 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.

30 h
Manual time on pending OAs
6 h
Time saved (low, 20%)
10 h
Time saved (mid, 35%)
0.3 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
ALDAZ CERVANTES, MAYELA RENATA 1 70.0% +39.4%
ZHENG, LOIS L 1 67.6% +13.0%
KESSLER, CHRISTOPHER S 1 60.1% +14.4%

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
18714745 6XXX SERIES ALUMINIUM ALLOY SHEETS OR BLANKS WITH IMPROVED FORMABILITY ALDAZ CERVANTES, MAYELA RENATA —
18556008 5XXX ALUMINIUM SHEETS WITH HIGH FORMABILTY KESSLER, CHRISTOPHER S —

Interview Candidates (3)

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 3 ordered by deadline are shown.

App #TitleExaminerDue in
18714745 6XXX SERIES ALUMINIUM ALLOY SHEETS OR BLANKS WITH IMPROVED FORMABILITY ALDAZ CERVANTES, MAYELA RENATA —
18558222 STRIP OR SHEET OF ALUMINIUM ALLOY FOR MANUFACTURING BRAZED HEAT EXCHANGERS ZHENG, LOIS L —
18556008 5XXX ALUMINIUM SHEETS WITH HIGH FORMABILTY KESSLER, CHRISTOPHER S —

Top Art Units

Art UnitApps
1733 1
1759 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18714745 6XXX SERIES ALUMINIUM ALLOY SHEETS OR BLANKS WITH IMPROVED FORMABILITY ALDAZ CERVANTES, MAYELA RENATA — §102§103§112Other Non-Final OA — Pending May 30, 2024
18558222 STRIP OR SHEET OF ALUMINIUM ALLOY FOR MANUFACTURING BRAZED HEAT EXCHANGERS ZHENG, LOIS L 1733 §103Other Final Rejection — Pending Oct 31, 2023
18556008 5XXX ALUMINIUM SHEETS WITH HIGH FORMABILTY KESSLER, CHRISTOPHER S 1759 §102§103§112 Non-Final OA — Pending Oct 18, 2023

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