Prosecution Insights
Prosecution Insights
Technology area: Chemistry & Materials
12 pending office actions • 8 art units • 11 examiners • 0 of 12 (0%) have an AI response strategy ready • 11 patents granted in the last 365 days
Celgard LLC is currently managing 12 pending office actions within the Chemistry & Materials technology area. These actions are distributed among 11 distinct examiners and 8 distinct art units. This distribution suggests a prosecution strategy that covers a range of technical applications within the chemistry sector. The use of 8 distinct art units indicates that the company's filings are being reviewed by many different specialized groups at the patent office. Each of these units may have different priorities or interpretations of the Chemistry & Materials field. Practitioners should be prepared for a variety of perspectives.
The busiest examiner for this portfolio is HEMINGWAY, TIMOTHY G, who is responsible for 2 pending office actions. This is the only instance of an examiner handling more than a single matter among the 12 pending office actions. With 11 distinct examiners and 8 distinct art units in play, the company faces a complex prosecution landscape. Each of the pending office actions may be subject to different interpretations of patentability, requiring the applicant to coordinate across multiple technical units and examiner personalities. This variety requires a flexible approach to address the different technical standards encountered across the patent office.
Based on the USPTO statutory response window for each pending office action. 3 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.
Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 3 of the docket's apps have a known mailing date.
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 | 7 (58%) |
| Double-patenting + other | 2 (17%) |
| Multi-statute (no §101) | 3 (25%) |
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 | 68.1% | +41.8% |
| RUMMEL, IAN A | 1 | 56.6% | +18.4% |
| EOFF, ANCA | 1 | 80.0% | +10.8% |
| OTERO, KENNETH MAX | 1 | 52.4% | +43.3% |
| QIAO, HUIHONG | 1 | 71.2% | +25.0% |
| ALBAN, FELICITY BERNARD | 1 | 52.8% | +37.8% |
| PILLAY, DEVINA | 1 | 44.2% | +25.9% |
| BLACKWELL-RUDASIL, RYAN KENZIE | 1 | 61.9% | +30.0% |
| TAKEUCHI, YOSHITOSHI | 1 | 66.6% | +24.3% |
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 |
|---|---|---|---|
| 18589298 | COATED SEPARATORS, LITHIUM BATTERIES, AND RELATED METHODS | EOFF, ANCA | 3d overdue |
Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 3 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 17275677 | MULTILAYER MEMBRANES, SEPARATORS, BATTERIES, AND METHODS | TAKEUCHI, YOSHITOSHI | 15d |
| 18890828 | ULTRA HIGH MELT TEMPERATURE MICROPOROUS HIGH TEMPERATURE BATTERY SEPARATORS AND RELATED METHODS | D'ANIELLO, NICHOLAS P | — |
| 18277546 | IMPROVED ADHESIVE COATING, COATED MEMBRANES, COATED BATTERY SEPARATORS, AND RELATED METHODS | PILLAY, DEVINA | — |
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 |
|---|---|---|---|
| 18015423 | SECONDARY BATTERY WITH IMPROVED BATTERY SEPARATOR | BLACKWELL-RUDASIL, RYAN KENZIE | 5d overdue |
| 18589298 | COATED SEPARATORS, LITHIUM BATTERIES, AND RELATED METHODS | EOFF, ANCA | 3d overdue |
| 17275677 | MULTILAYER MEMBRANES, SEPARATORS, BATTERIES, AND METHODS | TAKEUCHI, YOSHITOSHI | 15d |
| 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 | — |
| 18683477 | HEAT DISSIPATION SEPARATORS FOR HIGH ENERGY BATTERIES | OTERO, KENNETH MAX | — |
| 18413284 | COATINGS, COATED SEPARATORS, BATTERIES, AND RELATED METHODS | QIAO, HUIHONG | — |
| 18287035 | MEMBRANE WITH REACTED NETWORKS | ALBAN, FELICITY BERNARD | — |
| Art Unit | Apps |
|---|---|
| 1723 | 2 |
| 1722 | 2 |
| 1754 | 2 |
| 1785 | 1 |
| 1763 | 1 |
| 1728 | 1 |
| 1726 | 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 |
| 18589298 | COATED SEPARATORS, LITHIUM BATTERIES, AND RELATED METHODS | EOFF, ANCA | 1722 | §103 | Non-Final OA | 3d overdue | Pending | Feb 27, 2024 |
| 18683477 | HEAT DISSIPATION SEPARATORS FOR HIGH ENERGY BATTERIES | OTERO, KENNETH MAX | — | §102§103DP | Non-Final OA | — | Pending | Feb 13, 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 | Final Rejection | — | Pending | Oct 16, 2023 |
| 18277546 | IMPROVED ADHESIVE COATING, COATED MEMBRANES, COATED BATTERY SEPARATORS, AND RELATED METHODS | PILLAY, DEVINA | 1726 | §102§103§112 | Non-Final OA | — | Pending | Aug 16, 2023 |
| 18015423 | SECONDARY BATTERY WITH IMPROVED BATTERY SEPARATOR | BLACKWELL-RUDASIL, RYAN KENZIE | 1722 | §103 | Final Rejection | 5d overdue | Pending | Jan 10, 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 |
| 17275677 | MULTILAYER MEMBRANES, SEPARATORS, BATTERIES, AND METHODS | TAKEUCHI, YOSHITOSHI | 1723 | §103§112 | Non-Final OA | 15d | Pending | Mar 12, 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 |
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