Technology area: Chemistry & Materials
5 pending office actions • 4 art units • 4 examiners • 0 of 5 (0%) have an AI response strategy ready • 7 patents granted in the last 365 days
Plug Power Inc. has 5 pending office actions in Chemistry & Materials. The matters are assigned to 4 examiners and 4 art units, indicating a portfolio spread across distinct examination settings.
KEELING, ALEXANDER W is the busiest examiner, with 2 pending matters. That allocation is the largest individual examiner assignment in the profile, while the remaining matters require attention in other examination contexts.
The alignment between 4 examiners and 4 art units makes matter-specific review especially important. Counsel should track each art unit’s objections and amendment history separately, then identify common claim or technology themes before applying a coordinated portfolio strategy.
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 | 3 (60%) |
| 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 |
|---|---|---|---|
| KEELING, ALEXANDER W | 2 | 56.0% | +37.9% |
| HANYON, SAMANTHA LEE | 1 | 100.0% | +0.0% |
| IANNUCCI, LOUISE JAMES | 1 | 0.0% | +0.0% |
| LEE, DANIEL H. | 1 | 70.7% | +25.1% |
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 |
|---|---|---|---|
| 18402007 | SYSTEMS AND METHODS FOR OPERATING A FUEL CELL | HANYON, SAMANTHA LEE | — |
| 18341821 | STACK SYSTEMS | IANNUCCI, LOUISE JAMES | — |
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 |
|---|---|---|---|
| 18335516 | INSULATING DATUM INSERT | LEE, DANIEL H. | 28d |
| 18597366 | ACTIVE TENSIONING FOR ELECTROLYZER STACKS | KEELING, ALEXANDER W | — |
| 18476995 | RECOMBINATION LAYERS FOR CROSSOVER MITIGATION FOR EXCHANGE MEMBRANES AND WATER ELECTROLYZER MEMBRANE ELECTRODE ASSEMBLIES | KEELING, ALEXANDER W | — |
| Art Unit | Apps |
|---|---|
| 1795 | 2 |
| 1725 | 1 |
| 1721 | 1 |
| 1746 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 18597366 | ACTIVE TENSIONING FOR ELECTROLYZER STACKS | KEELING, ALEXANDER W | 1795 | §103 | Non-Final OA | — | Pending | Mar 06, 2024 |
| 18402007 | SYSTEMS AND METHODS FOR OPERATING A FUEL CELL | HANYON, SAMANTHA LEE | 1725 | §103§112Other | Non-Final OA | — | Pending | Jan 02, 2024 |
| 18476995 | RECOMBINATION LAYERS FOR CROSSOVER MITIGATION FOR EXCHANGE MEMBRANES AND WATER ELECTROLYZER MEMBRANE ELECTRODE ASSEMBLIES | KEELING, ALEXANDER W | 1795 | §103 | Non-Final OA | — | Pending | Sep 28, 2023 |
| 18341821 | STACK SYSTEMS | IANNUCCI, LOUISE JAMES | 1721 | §102§103 | Non-Final OA | — | Pending | Jun 27, 2023 |
| 18335516 | INSULATING DATUM INSERT | LEE, DANIEL H. | 1746 | §103 | Final Rejection | 28d | Pending | Jun 15, 2023 |
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Start Free TrialPlug Power Inc. has 5 pending office actions as of October 2026, spread across 4 art units and 4 examiners.
Alexander W Keeling has the most, with 2 of Plug Power Inc.'s pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
