Technology area: Chemistry & Materials
5 pending office actions • 4 art units • 5 examiners • 0 of 5 (0%) have an AI response strategy ready • 7 patents granted in the last 365 days
Duracell U.S. Operations Inc. currently manages 5 pending office actions within the Chemistry & Materials technology area. These actions are distributed among 5 distinct examiners. The portfolio is spread across 4 distinct art units, which indicates a broad range of technical subject matter within the chemistry sector.
ZENG, LINGWEN R is identified as the busiest examiner, though this individual only has 1 busiest examiner pending action. For a practitioner, this distribution suggests that the company's patent strategy is not reliant on any single examiner's favor. The presence of 5 distinct examiners relative to 5 pending office actions provides a diverse set of perspectives on the company's inventions.
Managing this portfolio requires a flexible approach, as the practitioner must navigate the unique requirements of 4 distinct art units. The fact that no examiner has more than 1 busiest examiner pending action minimizes the risk of a single examiner's bias affecting the entire portfolio. This wide distribution across multiple examiners and units provides a balanced prosecution environment for the company's current US filings.
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 |
|---|---|
| §101 only | 2 (40%) |
| §103 only | 1 (20%) |
| Multi-statute (no §101) | 2 (40%) |
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 |
|---|---|---|---|
| ZENG, LINGWEN R | 1 | 76.6% | +20.2% |
| ALEJANDRO, RAYMOND | 1 | 79.2% | +22.2% |
| IANNUCCI, LOUISE JAMES | 1 | 0.0% | +0.0% |
| ORDUNA, TAMARA | 1 | 66.7% | +100.0% |
| MARROQUIN, DOUGLAS C | 1 | 46.4% | +76.5% |
Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 4 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18789507 | Battery | ZENG, LINGWEN R | — |
| 18654551 | INTEGRATED MONITORING CAPACITY OF A POWER BANK BATTERY AND DEVICES CHARGED THEREWITH | ALEJANDRO, RAYMOND | — |
| 18542560 | Battery Cell With Safety Layer | IANNUCCI, LOUISE JAMES | — |
| 17566321 | OXIDATIVE DELITHIATION OF ALKALI NICKEL OXIDE | MARROQUIN, DOUGLAS C | — |
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 4 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18512694 | MAGNETIC BATTERY CELL CONNECTION MECHANISM | ORDUNA, TAMARA | 75d |
| 18789507 | Battery | ZENG, LINGWEN R | — |
| 18654551 | INTEGRATED MONITORING CAPACITY OF A POWER BANK BATTERY AND DEVICES CHARGED THEREWITH | ALEJANDRO, RAYMOND | — |
| 17566321 | OXIDATIVE DELITHIATION OF ALKALI NICKEL OXIDE | MARROQUIN, DOUGLAS C | — |
| Art Unit | Apps |
|---|---|
| 1723 | 2 |
| 1727 | 1 |
| 1721 | 1 |
| 1725 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 18789507 | Battery | ZENG, LINGWEN R | 1723 | §101 | Non-Final OA | — | Pending | Jul 30, 2024 |
| 18654551 | INTEGRATED MONITORING CAPACITY OF A POWER BANK BATTERY AND DEVICES CHARGED THEREWITH | ALEJANDRO, RAYMOND | 1727 | §101 | Non-Final OA | — | Pending | May 03, 2024 |
| 18542560 | Battery Cell With Safety Layer | IANNUCCI, LOUISE JAMES | 1721 | §103§112 | Non-Final OA | — | Pending | Dec 15, 2023 |
| 18512694 | MAGNETIC BATTERY CELL CONNECTION MECHANISM | ORDUNA, TAMARA | 1725 | §103 | Final Rejection | 75d | Pending | Nov 17, 2023 |
| 17566321 | OXIDATIVE DELITHIATION OF ALKALI NICKEL OXIDE | MARROQUIN, DOUGLAS C | 1723 | §103§112 | Non-Final OA | — | Pending | Dec 30, 2021 |
IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.
Start Free TrialDuracell U.S. Operations Inc. has 5 pending office actions as of October 2026, spread across 4 art units and 5 examiners.
Lingwen R Zeng has the most, with 1 of Duracell U.S. Operations Inc.'s pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
