Prosecution Insights
Prosecution Insights
Technology area: Chemistry & Materials
33 pending office actions • 18 art units • 30 examiners • 0 of 33 (0%) have an AI response strategy ready • 26 patents granted in the last 365 days
Mitsui Mining & Smelting Co., Ltd. maintains a portfolio with 32 pending office actions focused in the Chemistry & Materials technology area. These actions are distributed among 29 distinct examiners, which shows a spread of individual oversight across the pending applications. The portfolio spans 17 distinct art units, indicating that the company's Chemistry & Materials innovations touch upon various specialized examination groups within the patent office.
The busiest examiner for this company is DINH, TUAN T, who is currently managing 2 pending office actions. This figure is low compared to the total of 32 pending office actions, showing that no individual examiner dominates the prosecution landscape for this portfolio. With 29 distinct examiners involved, the company navigates a range of examiner preferences and styles. The presence of 17 distinct art units further emphasizes the need for a prosecution strategy that accounts for the different practices across multiple technical divisions.
Based on the USPTO statutory response window for each pending office action. 10 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. 10 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 | 16 (48%) |
| §102 only | 3 (9%) |
| §112 only | 1 (3%) |
| Double-patenting + other | 2 (6%) |
| Multi-statute (no §101) | 11 (33%) |
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 |
|---|---|---|---|
| DINH, TUAN T | 2 | 78.8% | +22.1% |
| CORNO JR, JAMES ANTHONY JOHN | 2 | 38.4% | +36.2% |
| ZEMUI, NATHANAEL T | 2 | 56.0% | +24.1% |
| BOSWELL, CHRISTOPHER J | 1 | 67.4% | +26.1% |
| PATEL, DEVANG R | 1 | 65.6% | +39.2% |
| YOUNG, WILLIAM D | 1 | 54.3% | +15.2% |
| NOGUEROLA, ALEXANDER STEPHAN | 1 | 82.7% | +3.0% |
| CHRISTY, KATHERINE A | 1 | 75.1% | +34.9% |
| LI, JUN | 1 | 54.6% | +56.8% |
| GODENSCHWAGER, PETER F | 1 | 68.0% | +17.7% |
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 |
|---|---|---|---|
| 18995552 | DEVICE, HYDROXIDE ION CONCENTRATION MEASUREMENT APPARATUS PROVIDED WITH SAME, AND METHOD FOR MEASURING CONCENTRATION OF HYDROXIDE ION BY USING SAME | NOGUEROLA, ALEXANDER STEPHAN | — |
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 |
|---|---|---|---|
| 17788562 | SULFIDE SOLID ELECTROLYTE AND METHOD FOR PRODUCING THE SAME | CORNO JR, JAMES ANTHONY JOHN | 100d overdue |
| 18277307 | METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE | ZEMUI, NATHANAEL T | 5d overdue |
| 19099816 | ACTIVE MATERIAL, METHOD FOR PRODUCING RECYCLED ACTIVE MATERIAL, METHOD FOR TRACKING VALUABLE ELEMENT RECOVERED FROM BATTERY, AND COMPOUND FOR TRACKING | YOUNG, WILLIAM D | — |
| 18879996 | METAL NONWOVEN FABRIC AND ELECTRODE COMPRISING SAME | CHRISTY, KATHERINE A | — |
| 18840573 | PHOSPHOR AND METHOD FOR PRODUCING SAME | GODENSCHWAGER, PETER F | — |
| 18706623 | METHOD FOR PRODUCING LITHIUM SULFIDE | HERNANDEZ, RITCHIE EVAN | — |
| 18687712 | MANGANESE OXIDE, MANGANESE OXIDE PARTICLES, NEAR-INFRARED TRANSMISSION MATERIAL, AND NEAR-INFRARED TRANSMISSION FILM | CHU, YONG LIANG | — |
| 18281586 | EXHAUST GAS PURIFICATION CATALYST COMPOSITION AND EXHAUST GAS PURIFICATION CATALYST | ZHANG, KELING NMN | — |
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 |
|---|---|---|---|
| 17788562 | SULFIDE SOLID ELECTROLYTE AND METHOD FOR PRODUCING THE SAME | CORNO JR, JAMES ANTHONY JOHN | 100d overdue |
| 18277307 | METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE | ZEMUI, NATHANAEL T | 5d overdue |
| 18704680 | DOUBLE-SIDED COPPER CLAD LAMINATE, CAPACITOR ELEMENT AND PRINTED WIRING BOARD WITH BUILT-IN CAPACITOR, AND METHOD FOR MANUFACTURING DOUBLE-SIDED COPPER CLAD LAMINATE | DINH, TUAN T | 19d |
| 18836850 | METHOD FOR MANUFACTURING BONDED BODY AND METHOD FOR BONDING BODIES TO BE BONDED | PATEL, DEVANG R | 33d |
| 19322225 | STRIKER FOR DOOR LATCH | BOSWELL, CHRISTOPHER J | — |
| 19099816 | ACTIVE MATERIAL, METHOD FOR PRODUCING RECYCLED ACTIVE MATERIAL, METHOD FOR TRACKING VALUABLE ELEMENT RECOVERED FROM BATTERY, AND COMPOUND FOR TRACKING | YOUNG, WILLIAM D | — |
| 18879996 | METAL NONWOVEN FABRIC AND ELECTRODE COMPRISING SAME | CHRISTY, KATHERINE A | — |
| 18869325 | EXHAUST GAS PURIFICATION CATALYST | LI, JUN | — |
| Art Unit | Apps |
|---|---|
| 1723 | 3 |
| 1727 | 3 |
| 2847 | 2 |
| 1732 | 2 |
| 1722 | 2 |
| 3675 | 1 |
| 1735 | 1 |
| 1784 | 1 |
| 1736 | 1 |
| 1734 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19322225 | STRIKER FOR DOOR LATCH | BOSWELL, CHRISTOPHER J | 3675 | §102 | Non-Final OA | — | Pending | Sep 08, 2025 |
| 18836850 | METHOD FOR MANUFACTURING BONDED BODY AND METHOD FOR BONDING BODIES TO BE BONDED | PATEL, DEVANG R | 1735 | §103 | Final Rejection | 33d | Pending | Mar 07, 2025 |
| 19099816 | ACTIVE MATERIAL, METHOD FOR PRODUCING RECYCLED ACTIVE MATERIAL, METHOD FOR TRACKING VALUABLE ELEMENT RECOVERED FROM BATTERY, AND COMPOUND FOR TRACKING | YOUNG, WILLIAM D | — | §102§103 | Non-Final OA | — | Pending | Jan 30, 2025 |
| 18995552 | DEVICE, HYDROXIDE ION CONCENTRATION MEASUREMENT APPARATUS PROVIDED WITH SAME, AND METHOD FOR MEASURING CONCENTRATION OF HYDROXIDE ION BY USING SAME | NOGUEROLA, ALEXANDER STEPHAN | — | §112 | Non-Final OA | — | Pending | Jan 16, 2025 |
| 18879996 | METAL NONWOVEN FABRIC AND ELECTRODE COMPRISING SAME | CHRISTY, KATHERINE A | 1784 | §103§112 | Non-Final OA | — | Pending | Dec 30, 2024 |
| 18869325 | EXHAUST GAS PURIFICATION CATALYST | LI, JUN | 1736 | §103§112DP | Non-Final OA | — | Pending | Nov 26, 2024 |
| 18840573 | PHOSPHOR AND METHOD FOR PRODUCING SAME | GODENSCHWAGER, PETER F | — | §102§103 | Non-Final OA | — | Pending | Aug 22, 2024 |
| 18713051 | AMINO COMPOUND-SUPPORTING POROUS SUBSTRATE AND ACIDIC GAS ABSORBENT | MCCLAIN, STARFARI TESHAWN | — | §103 | Non-Final OA | — | Pending | May 23, 2024 |
| 18706623 | METHOD FOR PRODUCING LITHIUM SULFIDE | HERNANDEZ, RITCHIE EVAN | — | §103§112Other | Non-Final OA | — | Pending | May 01, 2024 |
| 18704680 | DOUBLE-SIDED COPPER CLAD LAMINATE, CAPACITOR ELEMENT AND PRINTED WIRING BOARD WITH BUILT-IN CAPACITOR, AND METHOD FOR MANUFACTURING DOUBLE-SIDED COPPER CLAD LAMINATE | DINH, TUAN T | 2847 | §102 | Final Rejection | 19d | Pending | Apr 25, 2024 |
| 18687712 | MANGANESE OXIDE, MANGANESE OXIDE PARTICLES, NEAR-INFRARED TRANSMISSION MATERIAL, AND NEAR-INFRARED TRANSMISSION FILM | CHU, YONG LIANG | — | §102§103§112 | Non-Final OA | — | Pending | Feb 28, 2024 |
| 18684096 | HYDROGEN STORAGE ALLOY | LIANG, ANTHONY M | — | §103 | Non-Final OA | — | Pending | Feb 15, 2024 |
| 18294001 | MOLYBDIC ACID SOLUTION AND METHOD FOR PRODUCING THE SAME, MOLYBDENUM OXIDE POWDER AND METHOD FOR PRODUCING THE SAME | DAVIS, SHENG HAN | — | §103 | Non-Final OA | — | Pending | Jan 31, 2024 |
| 18284710 | EXHAUST GAS PURIFYING CATALYST COMPOSITION AND EXHAUST GAS PURIFYING CATALYST | LALISSE, REMY FREDERIC | 1732 | §103 | Final Rejection | 22d | Pending | Sep 28, 2023 |
| 18284714 | EXHAUST GAS PURIFYING CATALYST COMPOSITION AND EXHAUST GAS PURIFYING CATALYST | MCDONOUGH, JAMES E | 1734 | §103 | Non-Final OA | — | Pending | Sep 28, 2023 |
| 18284643 | MULTILAYER SUBSTRATE MANUFACTURING METHOD AND WIRING SUBSTRATE | DINH, TUAN T | 2847 | §103 | Non-Final OA | — | Pending | Sep 28, 2023 |
| 18284707 | EXHAUST GAS PURIFYING CATALYST COMPOSITION AND EXHAUST GAS PURIFYING CATALYST | CALDERON, DAVID ANDREW | 1742 | §103 | Final Rejection | — | Pending | Sep 28, 2023 |
| 18281586 | EXHAUST GAS PURIFICATION CATALYST COMPOSITION AND EXHAUST GAS PURIFICATION CATALYST | ZHANG, KELING NMN | 1732 | §103§112 | Non-Final OA | — | Pending | Sep 12, 2023 |
| 18281005 | SOLID ELECTROLYTE AND METHOD FOR PRODUCING SAME | CORNO JR, JAMES ANTHONY JOHN | 1722 | §102§103 | Non-Final OA | — | Pending | Sep 08, 2023 |
| 18279458 | MULTILAYER BODY | WASHVILLE, JEFFREY D | 1766 | §103 | Non-Final OA | — | Pending | Aug 30, 2023 |
| 18279350 | PHOSPHOR, METHOD FOR PRODUCING SAME, LIGHT EMITTING ELEMENT CONTAINING PHOSPHOR, AND LIGHT EMITTING DEVICE | OYER, ANDREW J | 1767 | §102§103DP | Final Rejection | — | Pending | Aug 29, 2023 |
| 18279174 | SEPARATION METHOD FOR SEPARATING CONSTITUENT MATERIAL FROM MEMBER AND METHOD FOR PROCESSING MEMBER | BARCENA, CARLOS | 1723 | §102§103 | Final Rejection | — | Pending | Aug 28, 2023 |
| 18278558 | SOLID ELECTROLYTE | DIGNAN, MICHAEL L | 1723 | §103§112 | Final Rejection | — | Pending | Aug 23, 2023 |
| 18277512 | SOLID ELECTROLYTE AND METHOD FOR PRODUCING SAME | ZEMUI, NATHANAEL T | 1727 | §102 | Final Rejection | — | Pending | Aug 16, 2023 |
| 18277307 | METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE | ZEMUI, NATHANAEL T | 1727 | §102§103 | Final Rejection | 5d overdue | Pending | Aug 15, 2023 |
| 18274176 | BATTERY | MARTIN, ANGELA J | 1727 | §103 | Final Rejection | 12d | Pending | Jul 25, 2023 |
| 18024846 | ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME, ELECTRODE MIXTURE, AND BATTERY | RIDLEY, BASIA ANNA | 1723 | §103Other | Non-Final OA | 39d | Pending | Mar 06, 2023 |
| 18018214 | HYDROCARBON ADSORPTION MATERIAL, EXHAUST GAS CLEANING CATALYST, AND EXHAUST GAS CLEANING SYSTEM | JOHNSON, CHRISTINA ANN | 1759 | §103 | Final Rejection | — | Pending | Jan 26, 2023 |
| 18008846 | METHOD FOR PRODUCING LITHIUM SULFIDE | PATEL, SUHANI JITENDRA | 1783 | §103 | Final Rejection | 9d | Pending | Dec 07, 2022 |
| 18075690 | Sulfide Solid Electrolyte | CHUO, TONY SHENG HSIANG | 1751 | §103 | Non-Final OA | 67d overdue | Pending | Dec 06, 2022 |
| 17923277 | SOLID ELECTROLYTE, ELECTRODE MIXTURE AND BATTERY | JOHNSON, JONATHAN J | 1700 | §103 | Final Rejection | — | Pending | Nov 04, 2022 |
| 17788562 | SULFIDE SOLID ELECTROLYTE AND METHOD FOR PRODUCING THE SAME | CORNO JR, JAMES ANTHONY JOHN | 1722 | §102§103 | Non-Final OA | 100d overdue | Pending | Jun 23, 2022 |
| 17434190 | SULFIDE SOLID ELECTROLYTE | NGUYEN, KEVIN NMN | 1752 | §103 | Final Rejection | 66d overdue | Pending | Aug 26, 2021 |
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