Technology area: Chemistry & Materials
15 pending office actions • 8 art units • 12 examiners • 0 of 15 (0%) have an AI response strategy ready • 10 patents granted in the last 365 days
Cataler Corporation has 16 pending office actions in Chemistry & Materials. The matters involve 13 distinct examiners across 9 distinct art units. CALDERON, DAVID ANDREW is the busiest examiner, with 2 pending matters. This indicates some repeated examiner assignment, but the broader workload remains distributed across multiple examination groups.
The art-unit count provides a practical structure for reviewing recurring materials, composition, or processing issues. Counsel should compare claim language and supporting disclosure within those groups, then account for differences in examiner treatment. The two matters before the busiest examiner can be coordinated, while the remaining matters require broader docket controls and record-specific response planning.
Based on the USPTO statutory response window for each pending office action. 2 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 | 8 (53%) |
| Multi-statute (no §101) | 7 (47%) |
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 |
|---|---|---|---|
| CALDERON, DAVID ANDREW | 2 | 100.0% | +0.0% |
| LEAVITT, MORDECAI MIZANI | 2 | 100.0% | +0.0% |
| YOUNG, NATASHA E | 2 | 83.0% | +9.1% |
| DAIGLER, CHRISTOPHER PAUL | 1 | 50.0% | +19.6% |
| MCCARTY, PATRICK M | 1 | 62.4% | +21.4% |
| KETCHAM, HANNAH ELIZABETH | 1 | — | — |
| RHOADES, DEREK JAMES | 1 | 72.3% | +16.5% |
| ORDUNA, TAMARA | 1 | 66.7% | +100.0% |
| ZHANG, KELING NMN | 1 | 66.8% | +17.6% |
| ARCIERO, ADAM A | 1 | 65.2% | -17.7% |
Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 2 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18276298 | Ohmic Heating-type Exhaust Gas Purification Catalyst System and Exhaust Gas Purification Method | YOUNG, NATASHA E | — |
| 18352116 | EXHAUST GAS-PURIFYING CATALYST | YOUNG, NATASHA E | — |
Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 7 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18846067 | Exhaust Gas Purifying Catalyst | CALDERON, DAVID ANDREW | — |
| 18840645 | Method for Producing Exhaust Gas Purification Catalyst | CALDERON, DAVID ANDREW | — |
| 18713316 | EXHAUST GAS PURIFICATION CATALYST DEVICE | LEAVITT, MORDECAI MIZANI | — |
| 18576016 | GAS-LIQUID REACTION METHOD | RHOADES, DEREK JAMES | — |
| 18575961 | EXHAUST GAS PURIFICATION CATALYST | LEAVITT, MORDECAI MIZANI | — |
| 18353955 | EXHAUST GAS PURIFICATION CATALYST | ZHANG, KELING NMN | — |
| 17439456 | Exhaust Gas Purification Catalyst | ZALESKAS, JOHN M | — |
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 5 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18718912 | RING TRAY FOR HONEYCOMB SUBSTRATE FIRING | DAIGLER, CHRISTOPHER PAUL | 33d |
| 18699382 | ELECTRODE CATALYST FOR HYDROGEN FUEL CELL ANODE | MCCARTY, PATRICK M | — |
| 18576016 | GAS-LIQUID REACTION METHOD | RHOADES, DEREK JAMES | — |
| 18576059 | C/SIC COMPOSITE PARTICLES AND THEIR MANUFACTURING METHOD, ELECTRODE CATALYST AND POLYMER ELECTROLYTE FUEL CELL COMPRISING THE C/SIC COMPOSITE PARTICLES | ORDUNA, TAMARA | — |
| 18353955 | EXHAUST GAS PURIFICATION CATALYST | ZHANG, KELING NMN | — |
| Art Unit | Apps |
|---|---|
| 1742 | 5 |
| 1774 | 3 |
| 1732 | 2 |
| 1741 | 1 |
| 1692 | 1 |
| 1776 | 1 |
| 1727 | 1 |
| 3747 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 18846067 | Exhaust Gas Purifying Catalyst | CALDERON, DAVID ANDREW | 1742 | §102§103 | Non-Final OA | — | Pending | Sep 11, 2024 |
| 18840645 | Method for Producing Exhaust Gas Purification Catalyst | CALDERON, DAVID ANDREW | 1742 | §102§103 | Non-Final OA | — | Pending | Aug 22, 2024 |
| 18718912 | RING TRAY FOR HONEYCOMB SUBSTRATE FIRING | DAIGLER, CHRISTOPHER PAUL | 1741 | §103 | Final Rejection | 33d | Pending | Jun 12, 2024 |
| 18713316 | EXHAUST GAS PURIFICATION CATALYST DEVICE | LEAVITT, MORDECAI MIZANI | 1742 | §102§103§112 | Non-Final OA | — | Pending | May 24, 2024 |
| 18699382 | ELECTRODE CATALYST FOR HYDROGEN FUEL CELL ANODE | MCCARTY, PATRICK M | 1774 | §103 | Non-Final OA | — | Pending | Apr 08, 2024 |
| 18692551 | EXHAUST GAS PURIFICATION CATALYST DEVICE | KETCHAM, HANNAH ELIZABETH | 1742 | §103 | Non-Final OA | — | Pending | Mar 15, 2024 |
| 18576016 | GAS-LIQUID REACTION METHOD | RHOADES, DEREK JAMES | 1692 | §102§103 | Non-Final OA | — | Pending | Jan 02, 2024 |
| 18575961 | EXHAUST GAS PURIFICATION CATALYST | LEAVITT, MORDECAI MIZANI | 1742 | §102§103 | Final Rejection | — | Pending | Jan 02, 2024 |
| 18576059 | C/SIC COMPOSITE PARTICLES AND THEIR MANUFACTURING METHOD, ELECTRODE CATALYST AND POLYMER ELECTROLYTE FUEL CELL COMPRISING THE C/SIC COMPOSITE PARTICLES | ORDUNA, TAMARA | 1776 | §103 | Non-Final OA | — | Pending | Jan 02, 2024 |
| 18276298 | Ohmic Heating-type Exhaust Gas Purification Catalyst System and Exhaust Gas Purification Method | YOUNG, NATASHA E | 1774 | §103 | Non-Final OA | — | Pending | Aug 08, 2023 |
| 18353955 | EXHAUST GAS PURIFICATION CATALYST | ZHANG, KELING NMN | 1732 | §103§112 | Final Rejection | — | Pending | Jul 18, 2023 |
| 18272675 | FUEL CELL ELECTRODE CATALYST | ARCIERO, ADAM A | 1727 | §103 | Final Rejection | — | Pending | Jul 17, 2023 |
| 18352116 | EXHAUST GAS-PURIFYING CATALYST | YOUNG, NATASHA E | 1774 | §103 | Non-Final OA | — | Pending | Jul 13, 2023 |
| 17801349 | EXHAUST GAS PURIFICATION CATALYST DEVICE | DAVIS, SHENG HAN | 1732 | §103 | Final Rejection | 40d | Pending | Aug 22, 2022 |
| 17439456 | Exhaust Gas Purification Catalyst | ZALESKAS, JOHN M | 3747 | §103§112 | Final Rejection | — | Pending | Sep 15, 2021 |
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Start Free TrialCataler Corporation has 15 pending office actions as of October 2026, spread across 8 art units and 12 examiners.
David Andrew Calderon has the most, with 2 of Cataler Corporation's pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
