Technology area: Biotechnology & Pharmaceuticals
2 pending office actions • 2 art units • 2 examiners • 0 of 2 (0%) have an AI response strategy ready • 8 patents granted in the last 365 days
Maruzen Petrochemical Co. Ltd. is active in the Biotechnology & Pharmaceuticals technology area. The portfolio currently has 2 pending office actions. These actions are split between 2 distinct examiners and 2 distinct art units, showing a diversified examination process for the company's chemical and biological filings. This distribution indicates that the company's applications are being reviewed by different specialized sections of the USPTO.
The busiest examiner for the portfolio is CHANDRAKUMAR, NIZAL S, who is responsible for 1 busiest examiner pending action. This represents a portion of the 2 pending office actions currently on file. The involvement of 2 distinct art units suggests that the company's technology is being evaluated under different specialized criteria. For practitioners, this requires a prosecution strategy that can adapt to the specific requirements of each art unit while managing the interactions with the 2 distinct examiners involved.
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 |
|---|---|
| §103 only | 1 (50%) |
| Multi-statute (no §101) | 1 (50%) |
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 |
|---|---|---|---|
| CHANDRAKUMAR, NIZAL S | 1 | 72.7% | +18.2% |
| BAHTA, MEDHANIT W | 1 | 80.6% | +27.8% |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 18263812 | METHOD FOR PRODUCING (2-METHOXYETHYL) VINYL ETHER, AND METHOD FOR REFINING (2-METHOXYETHYL) VINYL ETHER | BAHTA, MEDHANIT W | 15d |
Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18691966 | METHOD FOR PRODUCING VINYLPHOSPHONIC ACID MONOESTER | CHANDRAKUMAR, NIZAL S | — |
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 |
|---|---|---|---|
| 18263812 | METHOD FOR PRODUCING (2-METHOXYETHYL) VINYL ETHER, AND METHOD FOR REFINING (2-METHOXYETHYL) VINYL ETHER | BAHTA, MEDHANIT W | 15d |
| 18691966 | METHOD FOR PRODUCING VINYLPHOSPHONIC ACID MONOESTER | CHANDRAKUMAR, NIZAL S | — |
| Art Unit | Apps |
|---|---|
| 1625 | 1 |
| 1692 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 18691966 | METHOD FOR PRODUCING VINYLPHOSPHONIC ACID MONOESTER | CHANDRAKUMAR, NIZAL S | 1625 | §102§103§112 | Final Rejection | — | Pending | Mar 14, 2024 |
| 18263812 | METHOD FOR PRODUCING (2-METHOXYETHYL) VINYL ETHER, AND METHOD FOR REFINING (2-METHOXYETHYL) VINYL ETHER | BAHTA, MEDHANIT W | 1692 | §103 | Non-Final OA | 15d | Pending | Aug 01, 2023 |
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Start Free TrialMaruzen Petrochemical Co. Ltd. has 2 pending office actions as of October 2026, spread across 2 art units and 2 examiners.
Nizal S Chandrakumar has the most, with 1 of Maruzen Petrochemical Co. Ltd.'s pending office actions.
Mostly Biotechnology & Pharmaceuticals (USPTO Tech Center 1600), based on where its pending office actions are examined.
