Prosecution Insights
Prosecution Insights
Technology area: Medical Devices & Mechanical Engineering
3 pending office actions • 1 art units • 2 examiners • 0 of 3 (0%) have an AI response strategy ready • 5 patents granted in the last 365 days
Chart Energy & Chemicals Inc. has 3 pending office actions within the Medical Devices & Mechanical Engineering technology area. These actions are assigned to 2 distinct examiners, all of whom are located within 1 distinct art unit. This concentration within a distinct art unit suggests a focused technical review process for the company's mechanical and medical device applications. The shared technical environment allows for a more unified approach to prosecution.
The busiest examiner in this portfolio is KING, BRIAN M, who is currently handling 2 pending office actions. With a busiest examiner pending count of 2, this individual manages the majority of the company's 3 pending office actions. Practitioners should prioritize understanding the specific examination style and preferences of this examiner, as their decisions impact a significant portion of the active workload. The concentration of cases under this examiner creates a central point of focus for the legal team.
The remaining workload is handled by another distinct examiner within the same art unit. Managing the pending office actions across the distinct examiners requires a strategy that accounts for the dominant influence of the busiest examiner. Because all activity is within 1 distinct art unit, the company can maintain a consistent technical approach while addressing the specific feedback from the different examiners involved. This alignment helps in streamlining the overall prosecution process.
Based on the USPTO statutory response window for each pending office action. 1 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.
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 |
|---|---|
| Double-patenting + other | 1 (33%) |
| Multi-statute (no §101) | 2 (67%) |
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 |
|---|---|---|---|
| KING, BRIAN M | 2 | 70.1% | +23.8% |
| PETTITT, JOHN F | 1 | 26.0% | +21.8% |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 16385269 | Mixed Refrigerant Liquefaction System and Method with Pre-Cooling | PETTITT, JOHN F | 15d |
| 18810923 | Dehydration Separation Unit with Mixed Refrigerant Cooling | KING, BRIAN M | — |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 16385269 | Mixed Refrigerant Liquefaction System and Method with Pre-Cooling | PETTITT, JOHN F | 15d |
| 19191851 | Hydrogen Liquefaction System and Method | KING, BRIAN M | — |
| 18810923 | Dehydration Separation Unit with Mixed Refrigerant Cooling | KING, BRIAN M | — |
| Art Unit | Apps |
|---|---|
| 3763 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19191851 | Hydrogen Liquefaction System and Method | KING, BRIAN M | — | §103§112DP | Non-Final OA | — | Pending | Apr 28, 2025 |
| 18810923 | Dehydration Separation Unit with Mixed Refrigerant Cooling | KING, BRIAN M | — | §103§112Other | Non-Final OA | — | Pending | Aug 21, 2024 |
| 16385269 | Mixed Refrigerant Liquefaction System and Method with Pre-Cooling | PETTITT, JOHN F | 3763 | §103§112 | Non-Final OA | 15d | Pending | Apr 16, 2019 |
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