Technology area: Chemistry & Materials
449 pending office actions • 86 art units • 247 examiners • 0 of 449 (0%) have an AI response strategy ready • 543 patents granted in the last 365 days
Contemporary Amperex Technology Co., Limited has 475 pending office actions in Chemistry & Materials. The portfolio spans 258 distinct examiners and 83 distinct art units, showing a large docket with broad examiner allocation and more concentrated technical placement. The art-unit structure provides a practical basis for organizing prosecution teams, while the examiner distribution calls for systematic tracking of individual examination practices.
CULLEN, SEAN P is the busiest examiner, with 8 pending matters. That concentration warrants targeted review of the relevant prosecution records, but it is not a substitute for portfolio-wide controls. Counsel may benefit from common claim and disclosure standards, art-unit-specific prior-art analysis, and examiner-level preparation for recurring assignments.
Based on the USPTO statutory response window for each pending office action. 68 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. 68 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 |
|---|---|
| §101 only | 1 (0%) |
| §101 + other | 13 (3%) |
| §103 only | 123 (27%) |
| §102 only | 23 (5%) |
| §112 only | 8 (2%) |
| Double-patenting only | 1 (0%) |
| Double-patenting + other | 16 (4%) |
| Multi-statute (no §101) | 264 (59%) |
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 |
|---|---|---|---|
| CULLEN, SEAN P | 9 | 69.2% | +28.0% |
| ROSENBAUM, AMANDA R | 8 | 59.0% | +12.9% |
| WEINER, LAURA S | 7 | 85.2% | +14.7% |
| MARTIN, ANGELA J | 7 | 67.3% | -31.4% |
| CANTELMO, GREGG | 7 | 74.7% | +7.5% |
| BILLIET, AMANDA JUNE | 7 | 54.9% | +19.0% |
| DIGNAN, MICHAEL L | 7 | 58.1% | +16.1% |
| DARBY, BRENDON CHARLES | 6 | 51.8% | +16.9% |
| APICELLA, KARIE O | 6 | 80.6% | +12.3% |
| GATEWOOD, DANIEL S | 6 | 78.0% | +18.3% |
Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 7 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 19068624 | SOLID ELECTROLYTE, PREPARATION METHOD THEREOF, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS | WEINER, LAURA S | — |
| 18635016 | POSITIVE ELECTRODE ACTIVE MATERIAL WITH CORE-SHELL STRUCTURE AND PREPARATION METHOD THEREOF, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS | WEINER, LAURA S | — |
| 19262402 | SEPARATOR, BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS | WEINER, LAURA S | — |
| 18808108 | POSITIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREOF, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS | WEINER, LAURA S | — |
| 18764651 | CONNECTING ASSEMBLY, BATTERY CELL, BATTERY, AND POWER CONSUMPTION DEVICE | APICELLA, KARIE O | — |
| 18740540 | POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARATION THEREOF, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY AND ELECTRICAL DEVICE | WEINER, LAURA S | — |
| 18674940 | POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARATION THEREOF, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY AND ELECTRICAL DEVICE CONTAINING THE SAME | WEINER, LAURA S | — |
Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18327269 | SEPARATOR, PREPARATION METHOD OF SAME, SECONDARY BATTERY CONTAINING SAME, AND ELECTRICAL DEVICE | FRANCIS, ADAM JOSEPH | 70d overdue |
| 19036501 | SEPARATOR AND PREPARATION METHOD THEREOF, SECONDARY BATTERY, AND ELECTRIC APPARATUS | NEWMAN, DREW C | 45d overdue |
| 19305845 | SILICON COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRIC DEVICE | DOUYETTE, KENNETH J | 44d overdue |
| 17863825 | BATTERY CELL, BATTERY, ELECTRICAL DEVICE AND METHOD FOR PREPARING BATTERY CELL | NEWELL, ANNA GOULD | 31d overdue |
| 18296794 | ANODE PLATE OF LITHIUM-ION BATTERY AND APPLICATION THEREOF | APICELLA, KARIE O | 19d overdue |
| 18922690 | ELECTRICAL APPARATUS, AND METHOD, APPARATUS AND MEDIUM FOR CONTROLLING HEATING THEREOF | LI, HELEN | 16d overdue |
| 19315632 | ISOLATION FILM AND SECONDARY BATTERY AND ELECTRIC APPARATUS RELATED THERETO | SMITH, JEREMIAH R | 16d overdue |
| 17903054 | NEGATIVE ELECTRODE PLATE, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND POWER CONSUMING DEVICE | LIN, GIGI LEE | 5d |
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 |
|---|---|---|---|
| 18296794 | ANODE PLATE OF LITHIUM-ION BATTERY AND APPLICATION THEREOF | APICELLA, KARIE O | 19d overdue |
| 19246244 | PRECURSOR MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY, AND POWER CONSUMING APPARATUS | GATEWOOD, DANIEL S | 3d overdue |
| 18451770 | BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS | DIGNAN, MICHAEL L | 7d |
| 18518068 | ELECTRODE PLATE, ELECTRODE ASSEMBLY AND SECONDARY BATTERY | ROSENBAUM, AMANDA R | 14d |
| 18188993 | BATTERY HOUSING, BATTERY, ELECTRICAL APPARATUS, METHOD AND DEVICE FOR MANUFACTURING BATTERY | ROSENBAUM, AMANDA R | 14d |
| 18331260 | YOLK CORE-SHELL STRUCTURED COMPOSITE MATERIAL, PREPARATION METHOD OF SAME, AND SECONDARY BATTERY CONTAINING SAME | ROSENBAUM, AMANDA R | 22d |
| 18338581 | BINDER AND APPLICATION THEREOF | ROSENBAUM, AMANDA R | 56d |
| 19325545 | BATTERY DEVICE, ENERGY STORAGE DEVICE, ENERGY STORAGE SYSTEM, ELECTRIC DEVICE, AND CHARGING NETWORK | ROSENBAUM, AMANDA R | — |
| Art Unit | Apps |
|---|---|
| 1725 | 62 |
| 1729 | 40 |
| 1723 | 34 |
| 1727 | 30 |
| 1751 | 26 |
| 1752 | 23 |
| 1728 | 23 |
| 1724 | 17 |
| 1721 | 16 |
| 1722 | 11 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19392179 | CHARGING AND DISCHARGING APPARATUS AND BATTERY CHARGING METHOD | ONDRASIK, JOHN PAUL | 2859 | §103 | Final Rejection | — | Pending | Nov 18, 2025 |
| 19325545 | BATTERY DEVICE, ENERGY STORAGE DEVICE, ENERGY STORAGE SYSTEM, ELECTRIC DEVICE, AND CHARGING NETWORK | ROSENBAUM, AMANDA R | 1752 | §103§112 | Non-Final OA | — | Pending | Sep 11, 2025 |
| 19315619 | BATTERY APPARATUS, ENERGY STORAGE APPARATUS, ENERGY STORAGE SYSTEM, ELECTRIC APPARATUS, AND CHARGING NETWORK | FREEMAN, EMILY ELIZABETH | 1724 | §103 | Non-Final OA | — | Pending | Aug 31, 2025 |
| 19274612 | BATTERY CELL, BATTERY AND ELECTRIC DEVICE | APPLEGATE, SARAH ARIMINTIA | 1725 | §103 | Final Rejection | 53d | Pending | Jul 20, 2025 |
| 19262017 | A/M/X CRYSTALLINE MATERIAL, PHOTOVOLTAIC DEVICE, AND PREPARATION METHODS THEREOF | TRIVISONNO, ANGELO | 1722 | DP | Non-Final OA | — | Pending | Jul 07, 2025 |
| 19090541 | PHOTOVOLTAIC ARRAY TEST METHOD AND SYSTEM | BRAUNLICH, MARTIN WALTER | 2858 | §101§103§112 | Non-Final OA | — | Pending | Mar 26, 2025 |
| 19089285 | THIN-FILM SOLAR CELL AND ELECTRIC APPARATUS | GOLDEN, ANDREW J | 1726 | §102§103§112 | Non-Final OA | 27d | Pending | Mar 25, 2025 |
| 19068624 | SOLID ELECTROLYTE, PREPARATION METHOD THEREOF, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS | WEINER, LAURA S | 1723 | §103 | Final Rejection | — | Pending | Mar 03, 2025 |
| 19056146 | BATTERY BOX, BATTERY AND VEHICLE | DANG, TINH | 3655 | §102§103§112 | Non-Final OA | — | Pending | Feb 18, 2025 |
| 19054334 | BATTERY BOX, BATTERY AND VEHICLE | NEYZARI, OMID | 3613 | §102§103§112 | Non-Final OA | — | Pending | Feb 14, 2025 |
| 19039067 | CYLINDRICAL BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS | NEDIALKOVA, LILIA V | 1724 | §103§112 | Non-Final OA | — | Pending | Jan 28, 2025 |
| 19038594 | BATTERY, ELECTRICAL APPARATUS, BATTERY TESTING SYSTEM AND BATTERY TESTING METHOD | NGUYEN, VINH P | 2858 | §102§112 | Non-Final OA | — | Pending | Jan 27, 2025 |
| 19038640 | BATTERY TESTING METHOD AND APPARATUS, ELECTRONIC DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM | HAWKINS, DOMINIC E | 2858 | §102§103 | Non-Final OA | — | Pending | Jan 27, 2025 |
| 19038551 | COMMUNICATION MODULE AND WIRELESS TEST SYSTEM AND METHOD FOR BATTERY | NGUYEN, VINH P | 2858 | §103§112 | Non-Final OA | — | Pending | Jan 27, 2025 |
| 19038511 | SOLID ELECTROLYTE, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS | WEINER, LAURA S | 1723 | §103§112 | Final Rejection | — | Pending | Jan 27, 2025 |
| 19036501 | SEPARATOR AND PREPARATION METHOD THEREOF, SECONDARY BATTERY, AND ELECTRIC APPARATUS | NEWMAN, DREW C | 1751 | §103§112 | Non-Final OA | 45d overdue | Pending | Jan 24, 2025 |
| 19030005 | BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS | NEDIALKOVA, LILIA V | 1724 | §103 | Final Rejection | — | Pending | Jan 17, 2025 |
| 19021240 | ELECTRODE PLATE TESTING METHOD AND APPARATUS | ARTMAN, THOMAS R | 2884 | §102§103 | Non-Final OA | — | Pending | Jan 15, 2025 |
| 19017808 | ELECTROLYTE FOR SODIUM SECONDARY BATTERY, SODIUM SECONDARY BATTERY, AND ELECTRIC APPARATUS | AMPONSAH, OSEI K | 1752 | §103 | Non-Final OA | 17d overdue | Pending | Jan 13, 2025 |
| 19009139 | HOLD-DOWN MECHANISM, AIRTIGHTNESS TESTING HOLD-DOWN DEVICE AND AIRTIGHTNESS TESTING SYSTEM | CAZE-CORTES, TESSALIE ADELINA | 2855 | §103 | Non-Final OA | — | Pending | Jan 03, 2025 |
| 18973192 | CARBON MATERIAL, METHOD FOR PREPARING THE SAME, AND SECONDARY BATTERY AND ELECTRICAL DEVICE COMPRISING THE SAME | NGUYEN, TRI V | 1764 | §102§103§112 | Non-Final OA | — | Pending | Dec 09, 2024 |
| 18964272 | LIQUID LEAKAGE DETECTION METHOD, APPARATUS, AND DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM | HYTREK, ASHLEY LYNN | 2665 | §101§103§112 | Non-Final OA | — | Pending | Nov 29, 2024 |
| 18964286 | WINDING AND UNWINDING SYSTEM, CONTROL METHOD, AND PREPARATION DEVICE FOR BATTERY ELECTRODE SHEET | MELIKA, ERMIA EMAD | 3654 | §102§103 | Non-Final OA | — | Pending | Nov 29, 2024 |
| 18959469 | WINDING DEVICE AND WINDING METHOD | DIAS, RAVEEN J | 3654 | §102§112 | Non-Final OA | — | Pending | Nov 25, 2024 |
| 18957026 | AMMONIUM MANGANESE IRON PHOSPHATE PRECURSOR, LITHIUM MANGANESE IRON PHOSPHATE POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, AND SECONDARY BATTERY | THOMAS, JAISON P | 1762 | §102§103§112 | Non-Final OA | — | Pending | Nov 22, 2024 |
| 18957262 | DOMAIN CONTROLLER AND ENERGY STORAGE SYSTEM | LIN, JASON | 2117 | §103Other | Non-Final OA | — | Pending | Nov 22, 2024 |
| 18957123 | CONTROL METHOD OF ENERGY STORAGE SYSTEM AND ENERGY STORAGE SYSTEM | BARTLETT, WILLIAM P | 2169 | §101§102§103§112 | Non-Final OA | — | Pending | Nov 22, 2024 |
| 18951660 | INSPECTION METHOD AND ENERGY STORAGE SYSTEM | SHAH, NEEL D | 2858 | §101 | Non-Final OA | — | Pending | Nov 19, 2024 |
| 18949912 | BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS | MARTIN, ANGELA J | 1727 | §103 | Final Rejection | — | Pending | Nov 15, 2024 |
| 18946953 | METHOD FOR CONTROLLING ELECTRIC POWER AND CHARGING AND DISCHARGING SYSTEM | KARIM, ZIAUL | 2119 | §101§102 | Non-Final OA | — | Pending | Nov 14, 2024 |
| 18939337 | SOLAR CELL AND PREPARATION METHOD THEREFOR | KANG, TAE-SIK | 1728 | §103 | Final Rejection | — | Pending | Nov 06, 2024 |
| 18937812 | DOMAIN CONTROLLER, ENERGY STORAGE SYSTEM AND CONTROL METHOD OF ENERGY STORAGE SYSTEM | TANG, MICHAEL XUEFEI | 2115 | §102§103Other | Non-Final OA | — | Pending | Nov 05, 2024 |
| 18937057 | BATTERY, DRIVING APPARATUS, AND VEHICLE | FRICK, EMMA K | 3613 | §102§103Other | Non-Final OA | — | Pending | Nov 05, 2024 |
| 18926211 | PROCESSING MECHANISM AND ULTRASONIC WELDING APPARATUS | PATEL, DEVANG R | 1735 | §103 | Non-Final OA | — | Pending | Oct 24, 2024 |
| 18922690 | ELECTRICAL APPARATUS, AND METHOD, APPARATUS AND MEDIUM FOR CONTROLLING HEATING THEREOF | LI, HELEN | 3665 | §103§112 | Final Rejection | 16d overdue | Pending | Oct 22, 2024 |
| 18919047 | METHOD, APPARATUS, AND SYSTEM FOR INSPECTING CATHODE ELECTRODE PLATE OF COMPOSITE MATERIAL TAPE | MARCELINO HERNAND, JASMIN | 2676 | §101§102§103 | Non-Final OA | — | Pending | Oct 17, 2024 |
| 18917735 | METHOD, APPARATUS, AND SYSTEM FOR DEFECT DETECTION OF SEPARATOR OF COMPOSITE MATERIAL STRIP | BEZUAYEHU, SOLOMON G | 2674 | §101§102§103 | Non-Final OA | — | Pending | Oct 16, 2024 |
| 18915970 | PRESSURIZING APPARATUS, BATTERY, BATTERY CELL, PROCESSING METHOD, AND PRODUCTION SYSTEM | YUSIF, HUNSUYADOR MUGEESATU | 1743 | §102§103 | Non-Final OA | — | Pending | Oct 15, 2024 |
| 18914226 | MOTOR CONTROLLER, POWER SYSTEM, AND ELECTRIC APPARATUS | OXENKNECHT, KYLE | 2841 | §102§103 | Non-Final OA | — | Pending | Oct 13, 2024 |
| 18897245 | COATING DIE, COATING DEVICE AND COATING METHOD | WEDDLE, ALEXANDER MARION | 1712 | §102§103§112 | Non-Final OA | — | Pending | Sep 26, 2024 |
| 18823714 | POST WELDING METHOD AND POST WELDING SYSTEM | PAN, YUHUI R | 2116 | §102§103 | Non-Final OA | — | Pending | Sep 04, 2024 |
| 18817518 | BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS | MCCARTY, PATRICK M | — | §103§112 | Non-Final OA | — | Pending | Aug 28, 2024 |
| 18815397 | CONTROL METHOD AND CONTROL APPARATUS FOR BATTERY SYSTEM | NOH, JAE NAM | 2481 | §102§112 | Non-Final OA | — | Pending | Aug 26, 2024 |
| 18743114 | BATTERY ELECTRODE PLATE, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE | PATEL, SUHANI JITENDRA | 1783 | §102§103 | Non-Final OA | — | Pending | Jun 14, 2024 |
| 18743142 | BATTERY MANAGEMENT METHOD AND BATTERY MANAGEMENT DEVICE | RETALLICK, KAITLIN A | 2482 | §101§103 | Non-Final OA | — | Pending | Jun 14, 2024 |
| 18733884 | BODY CONNECTION ASSEMBLY AND VEHICLE | MORROW, JASON S | 3612 | §112 | Final Rejection | — | Pending | Jun 05, 2024 |
| 18674947 | ELECTRODE PLATE, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE | ARCIERO, ADAM A | 1727 | §102§103§112 | Non-Final OA | — | Pending | May 27, 2024 |
| 18672019 | BATTERY MODULE, BATTERY, AND POWER CONSUMING DEVICE | DARBY, BRENDON CHARLES | 1749 | §102§103§112 | Non-Final OA | — | Pending | May 23, 2024 |
| 18672035 | BOX, BATTERY, AND ELECTRIC APPARATUS | DARBY, BRENDON CHARLES | 1749 | §102§103§112 | Non-Final OA | — | Pending | May 23, 2024 |
| 18668266 | SEPARATOR ROLL, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE | KYLE, MADISON LEIGH | 1722 | §102§103§112 | Non-Final OA | — | Pending | May 20, 2024 |
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Start Free TrialContemporary Amperex Technology Co., Limited has 449 pending office actions as of October 2026, spread across 86 art units and 247 examiners.
Sean P Cullen has the most, with 9 of Contemporary Amperex Technology Co., Limited's pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
