Technology area: Chemistry & Materials
10 pending office actions • 8 art units • 9 examiners • 0 of 10 (0%) have an AI response strategy ready • 13 patents granted in the last 365 days
Celgard LLC has 11 pending office actions in Chemistry & Materials. The matters are assigned to 10 examiners and 9 art units, reflecting a broad and distributed prosecution workload. The difference between pending matters and examiners indicates that at least one examiner handles more than one matter.
HEMINGWAY, TIMOTHY G is the busiest examiner, with 2 pending matters. That assignment is the clearest point for coordinated examiner-specific planning, while the remaining matters require broader docket management across the other examination contacts.
The art-unit distribution supports maintaining a portfolio-level record of claim language, cited issues, and technical positions. Counsel should still tailor responses to each examiner because the matters are not confined to one examination setting.
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 | 6 (60%) |
| §112 only | 1 (10%) |
| Double-patenting + other | 1 (10%) |
| Multi-statute (no §101) | 2 (20%) |
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 |
|---|---|---|---|
| HEMINGWAY, TIMOTHY G | 2 | 42.7% | +19.2% |
| D'ANIELLO, NICHOLAS P | 1 | 68.3% | +41.7% |
| RUMMEL, IAN A | 1 | 56.8% | +18.4% |
| LONG, JACOB THOMAS | 1 | — | — |
| SLIFKA, SARAH A | 1 | 75.5% | +11.3% |
| QIAO, HUIHONG | 1 | 71.1% | +25.6% |
| ALBAN, FELICITY BERNARD | 1 | 56.4% | +34.6% |
| HIGGINS, KATHERINE NICOLE | 1 | 62.5% | +24.3% |
| GARCIA, BETHANY CLAIRE | 1 | 66.7% | +34.5% |
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 |
|---|---|---|---|
| 18890828 | ULTRA HIGH MELT TEMPERATURE MICROPOROUS HIGH TEMPERATURE BATTERY SEPARATORS AND RELATED METHODS | D'ANIELLO, NICHOLAS P | — |
| 18716506 | TWO-SIDE-COATED BATTERY SEPARATOR AND BATTERY COMPRISING THE SAME | LONG, JACOB THOMAS | — |
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 8 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18890828 | ULTRA HIGH MELT TEMPERATURE MICROPOROUS HIGH TEMPERATURE BATTERY SEPARATORS AND RELATED METHODS | D'ANIELLO, NICHOLAS P | — |
| 18807990 | ELECTRICALLY CONDUCTIVE, TRANSPARENT, TRANSLUCENT, AND/OR REFLECTIVE MATERIALS | RUMMEL, IAN A | — |
| 18594101 | BASE FILMS FOR IMPREGNATION, IMPROVED IMPREGNATED PRODUCTS, AND RELATED METHODS | SLIFKA, SARAH A | — |
| 18413284 | COATINGS, COATED SEPARATORS, BATTERIES, AND RELATED METHODS | QIAO, HUIHONG | — |
| 18287035 | MEMBRANE WITH REACTED NETWORKS | ALBAN, FELICITY BERNARD | — |
| 18010420 | IMPROVED MEMBRANES WITH NANOPARTICLE INORGANIC FILLER | HEMINGWAY, TIMOTHY G | — |
| 18007745 | A HEAT-RESISTANT BATTERY SEPARATORS AND RELATED BATTERIES AND METHODS | HEMINGWAY, TIMOTHY G | — |
| 17601088 | POLYAMIDE-IMIDE COATED SEPARATORS FOR HIGH ENERGY RECHARGEABLE LITHIUM BATTERIES | HIGGINS, KATHERINE NICOLE | — |
| Art Unit | Apps |
|---|---|
| 1728 | 2 |
| 1754 | 2 |
| 1723 | 1 |
| 1785 | 1 |
| 1746 | 1 |
| 1759 | 1 |
| 1763 | 1 |
| 1721 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 18890828 | ULTRA HIGH MELT TEMPERATURE MICROPOROUS HIGH TEMPERATURE BATTERY SEPARATORS AND RELATED METHODS | D'ANIELLO, NICHOLAS P | 1723 | §102§103§112Other | Non-Final OA | — | Pending | Sep 20, 2024 |
| 18807990 | ELECTRICALLY CONDUCTIVE, TRANSPARENT, TRANSLUCENT, AND/OR REFLECTIVE MATERIALS | RUMMEL, IAN A | 1785 | §103 | Final Rejection | — | Pending | Aug 18, 2024 |
| 18716506 | TWO-SIDE-COATED BATTERY SEPARATOR AND BATTERY COMPRISING THE SAME | LONG, JACOB THOMAS | 1746 | §102§103§112 | Non-Final OA | — | Pending | Jun 04, 2024 |
| 18594101 | BASE FILMS FOR IMPREGNATION, IMPROVED IMPREGNATED PRODUCTS, AND RELATED METHODS | SLIFKA, SARAH A | 1759 | §112 | Non-Final OA | — | Pending | Mar 04, 2024 |
| 18413284 | COATINGS, COATED SEPARATORS, BATTERIES, AND RELATED METHODS | QIAO, HUIHONG | 1763 | §103§112DP | Non-Final OA | — | Pending | Jan 16, 2024 |
| 18287035 | MEMBRANE WITH REACTED NETWORKS | ALBAN, FELICITY BERNARD | 1728 | §103 | Non-Final OA | — | Pending | Oct 16, 2023 |
| 18010420 | IMPROVED MEMBRANES WITH NANOPARTICLE INORGANIC FILLER | HEMINGWAY, TIMOTHY G | 1754 | §103 | Non-Final OA | — | Pending | Dec 14, 2022 |
| 18007745 | A HEAT-RESISTANT BATTERY SEPARATORS AND RELATED BATTERIES AND METHODS | HEMINGWAY, TIMOTHY G | 1754 | §103 | Non-Final OA | — | Pending | Dec 02, 2022 |
| 17601088 | POLYAMIDE-IMIDE COATED SEPARATORS FOR HIGH ENERGY RECHARGEABLE LITHIUM BATTERIES | HIGGINS, KATHERINE NICOLE | 1728 | §103 | Final Rejection | — | Pending | Oct 04, 2021 |
| 17263849 | Safer Batteries and Separators for Batteries; Solutions on Li-Ion Edv/Ess Battery Safety; Solutions on Anode/Electrolyte/Cathode Reduction and/or Oxidation Issues; and, Improved Batteries, Anodes, and/or Separators | GARCIA, BETHANY CLAIRE | 1721 | §103 | Final Rejection | — | Pending | Jan 27, 2021 |
IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.
Start Free TrialCelgard LLC has 10 pending office actions as of October 2026, spread across 8 art units and 9 examiners.
Timothy G Hemingway has the most, with 2 of Celgard LLC's pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
