Prosecution Insights
Prosecution Insights
Technology area: Chemistry & Materials
3 pending office actions • 2 art units • 3 examiners • 0 of 3 (0%) have an AI response strategy ready • 7 patents granted in the last 365 days
Repligen Corporation currently has 3 pending office actions within the Chemistry & Materials technology area. These 3 actions are being reviewed by 3 distinct examiners, indicating a lack of examiner concentration. However, these matters are grouped within 2 distinct art units, suggesting some technical overlap in the company's current pending workload even as it engages with multiple examiners.
The busiest examiner for the portfolio is BREWSTER, HAYDEN R, who is responsible for 1 pending office action. Because each of the 3 pending actions is assigned to a different examiner, no single individual handles the majority of the workload. This distribution requires practitioners to adapt to three different examination styles across the 3 pending matters. The lack of examiner overlap means that each application must be managed as a separate prosecution track with its own unique requirements.
The use of 2 distinct art units within the Chemistry & Materials field shows that the company's innovations are being scrutinized by at least two different technical groups. With 3 distinct examiners involved, the prosecution landscape is diverse for a portfolio of this size. Practitioners must manage three separate timelines and sets of examiner requirements to move these 3 pending office actions forward. A coordinated approach is necessary to ensure that the specific feedback from each examiner is addressed while maintaining the overall goals for the portfolio.
Based on the USPTO statutory response window for each pending office action. 2 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 |
|---|---|---|---|
| BREWSTER, HAYDEN R | 1 | 62.7% | +46.8% |
| CARREON, ADRIAN JOHN | 1 | 100.0% | +0.0% |
| BASS, DIRK R | 1 | 62.4% | +22.8% |
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 |
|---|---|---|---|
| 18200112 | RECOVERY OF PERFUSION BLEED PRODUCT VIA ALTERNATING TANGENTIAL FLOW FILTRATION IN A SEDIMENTATION REACTOR | CARREON, ADRIAN JOHN | 10d overdue |
| 18123917 | VARIABLE PATHLENGTH UV SPECTROSCOPY BASED AUTOMATED TFF SYSTEM | BASS, DIRK R | 55d |
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 2 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18123917 | VARIABLE PATHLENGTH UV SPECTROSCOPY BASED AUTOMATED TFF SYSTEM | BASS, DIRK R | 55d |
| 18748880 | FILTRATION SYSTEM AND METHOD | BREWSTER, HAYDEN R | — |
| Art Unit | Apps |
|---|---|
| 1799 | 1 |
| 1779 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 18748880 | FILTRATION SYSTEM AND METHOD | BREWSTER, HAYDEN R | — | §103DP | Non-Final OA | — | Pending | Jun 20, 2024 |
| 18200112 | RECOVERY OF PERFUSION BLEED PRODUCT VIA ALTERNATING TANGENTIAL FLOW FILTRATION IN A SEDIMENTATION REACTOR | CARREON, ADRIAN JOHN | 1799 | §103§112 | Non-Final OA | 10d overdue | Pending | May 22, 2023 |
| 18123917 | VARIABLE PATHLENGTH UV SPECTROSCOPY BASED AUTOMATED TFF SYSTEM | BASS, DIRK R | 1779 | §103§112 | Non-Final OA | 55d | Pending | Mar 20, 2023 |
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