Technology areas: Semiconductors, Circuits & Optics • Transportation, E-Commerce & Mechanical Systems
145 pending office actions • 72 art units • 130 examiners • 0 of 145 (0%) have an AI response strategy ready • 462 patents granted in the last 365 days
Caterpillar Inc. has 144 pending office actions in Transportation, E-Commerce & Mechanical Systems. The matters involve 129 distinct examiners across 72 distinct art units, indicating extensive examiner distribution with multiple matters handled within some units. This structure favors centralized docket controls combined with art-unit and technology segmentation.
TSUI, ALFRED H is the busiest listed examiner, with 3 pending matters. That examiner represents a limited portion of the active workload, so the principal prosecution implication is the need to coordinate many separate examination relationships. Consistent claim strategy should be maintained without assuming uniform treatment across the portfolio.
Based on the USPTO statutory response window for each pending office action. 33 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. 33 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 | 6 (4%) |
| §101 + other | 13 (9%) |
| §103 only | 57 (39%) |
| §102 only | 8 (6%) |
| §112 only | 1 (1%) |
| Double-patenting only | 1 (1%) |
| Double-patenting + other | 3 (2%) |
| Multi-statute (no §101) | 56 (39%) |
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 |
|---|---|---|---|
| TSUI, ALFRED H | 3 | 33.0% | +32.5% |
| BREGEL, EVAN ANTHONY | 2 | 72.0% | +22.5% |
| KONERU, LAKSHMI S | 2 | 62.8% | +16.0% |
| KNUTSON, JACOB D | 2 | 79.7% | +20.5% |
| PEZZUTO, ROBERT ERIC | 2 | 85.3% | +10.2% |
| BEHRENS, ADAM J | 2 | 77.3% | +12.1% |
| MONSUR, NASIMA | 2 | 78.5% | +26.0% |
| ANWARI, MACEEH | 2 | 81.2% | +5.9% |
| SULTANA, DILARA | 2 | 80.9% | +16.2% |
| PELTON, NATHANIEL R | 2 | 74.5% | +18.9% |
Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 3 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18178100 | SYSTEMS AND METHODS FOR DETERMINING A COMBINATION OF SENSOR MODALITIES BASED ON ENVIRONMENTAL CONDITIONS | SULTANA, DILARA | 69d |
| 18769486 | SYSTEM AND METHOD OF OPERATING PERCEPTION DEVICES IN MOBILE MACHINES | ANWARI, MACEEH | — |
| 18588556 | Electrical Power System for Earthmoving Machine | ANWARI, MACEEH | — |
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 |
|---|---|---|---|
| 17117153 | HYBRID ENSEMBLE APPROACH FOR IOT PREDICTIVE MODELLING | ALGHAZZY, SHAMCY | 107d overdue |
| 17519477 | SYSTEMS AND METHODS FOR UNDERCARRIAGE WEAR PREDICTION | CHAVEZ, ANTHONY RAY | 46d overdue |
| 18499921 | WEAR INFORMING SYSTEM AND RELATED METHODS OF USE | TURNER, SHELBY AUBURN | 16d overdue |
| 18540559 | SNOW WING LINKAGE | TSUI, ALFRED H | 8d overdue |
| 18736161 | DOOR CLOSING SYSTEM OF AN ENERGY TRANSFER SYSTEM | MORFORD, ALEXANDRA ROBYN | 4d overdue |
| 18156097 | SERVICE COVER FOR INSTALLING AND REMOVING FILTER ELEMENTS OF A FILTER ASSEMBLY | HE, QIANPING | 4d overdue |
| 18751648 | BATTERY PACK CONTACT BREAK DETECTION | MONSUR, NASIMA | 7d |
| 18423571 | STARTUP CONDITION MONITORING SYSTEM FOR A MACHINE | WU, LORI SOUTHARD | 8d |
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 |
|---|---|---|---|
| 18540559 | SNOW WING LINKAGE | TSUI, ALFRED H | 8d overdue |
| 18751648 | BATTERY PACK CONTACT BREAK DETECTION | MONSUR, NASIMA | 7d |
| 18178100 | SYSTEMS AND METHODS FOR DETERMINING A COMBINATION OF SENSOR MODALITIES BASED ON ENVIRONMENTAL CONDITIONS | SULTANA, DILARA | 69d |
| 18470692 | CORNER SEGMENT | TSUI, ALFRED H | 75d |
| 19090610 | WORK TOOL COUPLING APPARATUS, SYSTEM AND METHOD | BREGEL, EVAN ANTHONY | — |
| 19083480 | SEAL MEMBER FOR JOINT ASSEMBLY OF A MACHINE AND SYSTEMS, METHODS, AND ASSEMBLIES THEREOF | KONERU, LAKSHMI S | — |
| 19070675 | SCALLOP-RESISTANT TRACK LINK AND METHOD OF MAKING SAME | KNUTSON, JACOB D | — |
| 19070662 | SCALLOP-RESISTANT TRACK LINK AND METHOD OF MAKING SAME | KNUTSON, JACOB D | — |
| Art Unit | Apps |
|---|---|
| 3671 | 12 |
| 3663 | 8 |
| 2859 | 8 |
| 2858 | 7 |
| 3675 | 5 |
| 3615 | 5 |
| 3662 | 4 |
| 3763 | 4 |
| 2857 | 4 |
| 3611 | 3 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19482127 | Method For Monitoring An Operation Of A Work Machine Arm | PETTIEGREW, TOYA R | 3662 | §101§103 | Non-Final OA | — | Pending | Nov 06, 2025 |
| 19469817 | Recovery Of Electric Work Vehicles | ELARABI, TAREK A | 3661 | §102§103 | Non-Final OA | — | Pending | Sep 26, 2025 |
| 19296668 | SYSTEM AND METHOD FOR GENERATING WORK PLAN FOR AUTONOMOUS OPERATION OF COMPACTOR | ALQADERI, NADA MAHYOOB | 3664 | DP | Non-Final OA | — | Pending | Aug 11, 2025 |
| 19093710 | COUNTERWEIGHT ASSEMBLY AND SYSTEM FOR MOUNTING THE COUNTERWEIGHT ASSEMBLY | CHIN, PAUL T | 3654 | §102 | Non-Final OA | — | Pending | Mar 28, 2025 |
| 19090610 | WORK TOOL COUPLING APPARATUS, SYSTEM AND METHOD | BREGEL, EVAN ANTHONY | 3671 | §102§103 | Non-Final OA | — | Pending | Mar 26, 2025 |
| 19083480 | SEAL MEMBER FOR JOINT ASSEMBLY OF A MACHINE AND SYSTEMS, METHODS, AND ASSEMBLIES THEREOF | KONERU, LAKSHMI S | 3675 | §103 | Non-Final OA | — | Pending | Mar 19, 2025 |
| 19070675 | SCALLOP-RESISTANT TRACK LINK AND METHOD OF MAKING SAME | KNUTSON, JACOB D | 3611 | §103§112 | Non-Final OA | — | Pending | Mar 05, 2025 |
| 19070662 | SCALLOP-RESISTANT TRACK LINK AND METHOD OF MAKING SAME | KNUTSON, JACOB D | 3611 | §103 | Non-Final OA | — | Pending | Mar 05, 2025 |
| 19053358 | METHODS AND SYSTEMS FOR DETERMINING MACHINE STATE | KINGSLAND, KYLE J | 3663 | §102§103§112 | Final Rejection | — | Pending | Feb 13, 2025 |
| 19051814 | SYSTEMS AND METHODS FOR DRILLING MACHINES | WALLACE, KIPP CHARLES | 3674 | §103 | Non-Final OA | — | Pending | Feb 12, 2025 |
| 19099873 | Hydraulic Actuator for Work Machine | NGUYEN, DUSTIN T | 3745 | §102§103 | Non-Final OA | — | Pending | Jan 30, 2025 |
| 18992110 | Wear Pad Assembly | TRAN, DIEM M | 3654 | §102§103 | Non-Final OA | — | Pending | Jan 07, 2025 |
| 18980169 | CAUSING A BATTERY OF A MACHINE TO ENTER INTO A CHARGING STATE | SEOL, DAVIN | 3662 | §103 | Final Rejection | 86d | Pending | Dec 13, 2024 |
| 18973668 | HANDHELD TOOL FOR FUSE ASSEMBLY | NEJAD, MAHDI H | 3723 | §102§103 | Non-Final OA | — | Pending | Dec 09, 2024 |
| 18969347 | FATIGUE LIFE OPTIMIZED MODULAR BUCKET ASSEMBLY | SCOVILLE, BLAKE E | — | §103§112 | Non-Final OA | — | Pending | Dec 05, 2024 |
| 18965196 | SYSTEMS AND METHODS FOR MODIFYING A NON-ELECTRIC MACHINE TO BE AN ELECTRIC OR HYBRID ELECTRIC MACHINE | ALAM, NAEEM TASLIM | 3668 | §103 | Non-Final OA | — | Pending | Dec 02, 2024 |
| 18961949 | DETERMINING THAT A TARGET IS NOT A PREDICTED DESTINATION OF A PROJECTED PATH OF A MACHINE | WAKELY, REECE ANTHONY | 3667 | §102§103 | Final Rejection | — | Pending | Nov 27, 2024 |
| 18961818 | VALIDATION OF PERCEPTION INFORMATION OBTAINED BY A PERCEPTION SENSOR SYSTEM THAT INCLUDES A PLURALITY OF SENSORS | INSERRA, MADISON RENEE | 3662 | §103 | Non-Final OA | — | Pending | Nov 27, 2024 |
| 18945682 | RETENTION COMPONENT ASSEMBLY FOR WORK TOOL | BREGEL, EVAN ANTHONY | 3671 | §102§103 | Non-Final OA | — | Pending | Nov 13, 2024 |
| 18927250 | System and Method for Maintaining Working Temperature of Circuit Breakers | AL-TAWEEL, MUAAMAR QAHTAN | 2838 | §103 | Final Rejection | — | Pending | Oct 25, 2024 |
| 18924517 | MASTER LINK END FOR MASTER LINK ASSEMBLY AND RELATED METHODS | PALMER, ALEX ROBERT | 3615 | §102§103 | Non-Final OA | — | Pending | Oct 23, 2024 |
| 18907093 | MANAGEMENT OF MACHINE OPERATION SAFETY ZONES | CHOI, ALICIA M | 2117 | §101 | Non-Final OA | — | Pending | Oct 04, 2024 |
| 18891065 | BUCKET LIP AND BUCKET LIP ASSEMBLY FOR MACHINE HAVING LIP WINGS | PEZZUTO, ROBERT ERIC | 3671 | §102§103 | Non-Final OA | — | Pending | Sep 20, 2024 |
| 18891054 | BUCKET LIP AND BUCKET FOR MACHINE HAVING SEGMENTED INTEGRAL BEAM | PEZZUTO, ROBERT ERIC | 3671 | §102§103§112 | Non-Final OA | — | Pending | Sep 20, 2024 |
| 18891080 | BUCKET LIP HAVING WEAR CAP RETENTION FEATURE | BEHRENS, ADAM J | 3671 | §103 | Non-Final OA | — | Pending | Sep 20, 2024 |
| 18891067 | BUCKET LIP HAVING SHROUD STATIONS FOR MULTI-DIRECTIONAL LOAD SUPPORT | BEHRENS, ADAM J | 3671 | §102 | Non-Final OA | — | Pending | Sep 20, 2024 |
| 18888623 | Quick Tool Coupler System | TIGHE, BRENDAN P | 3652 | §101 | Non-Final OA | — | Pending | Sep 18, 2024 |
| 18821323 | Cooling Arrangement for Conditioning Cabins of Work Machines | BRADFORD, JONATHAN | 3763 | §102§103 | Final Rejection | — | Pending | Aug 30, 2024 |
| 18817477 | SEAL CARTRIDGE, SEAL CARTRIDGE ASSEMBLY, AND METHOD OF USE | KONERU, LAKSHMI S | 3675 | §102§103 | Final Rejection | — | Pending | Aug 28, 2024 |
| 18814739 | METHOD AND SYSTEM FOR HEATING CABINS OF WORK MACHINES | NOUKETCHA, LIONEL W | 3763 | §102 | Non-Final OA | — | Pending | Aug 26, 2024 |
| 18810984 | MICROGRID COMMAND STRATEGY | EVERETT, CHRISTOPHER E | 2117 | §101§102 | Non-Final OA | — | Pending | Aug 21, 2024 |
| 18796850 | IMPROVED MICROGRID HEALTH DETECTION | CORTES, HOWARD | 2118 | §103 | Non-Final OA | — | Pending | Aug 07, 2024 |
| 18792989 | MODULAR AIR FILTER ASSEMBLY | LAWRENCE JR, FRANK M | 1776 | §102Other | Non-Final OA | — | Pending | Aug 02, 2024 |
| 18833311 | Roof Support Unit for a Mining Machine | TOLEDO-DURAN, EDWIN J | 3678 | §102§103§112 | Non-Final OA | — | Pending | Jul 25, 2024 |
| 18784094 | SYSTEM AND METHOD FOR OPERATING A VEHICLE HAVING A HYBRID POWERTRAIN | KLEINMAN, LAIL A | 3668 | §103 | Non-Final OA | — | Pending | Jul 25, 2024 |
| 18777714 | WEAR SLEEVE AND LIP SEAL POSITIONABLE UPON A MACHINE COMPONENT | BYRD, EUGENE G | 3675 | §103 | Final Rejection | — | Pending | Jul 19, 2024 |
| 18771808 | SYNTHETIC AUDIO FEEDBACK FOR MACHINE IMPLEMENT CONTROL | BREWER, JACK ROBERT | 3663 | §103§112 | Final Rejection | 63d | Pending | Jul 12, 2024 |
| 18771488 | CONDUITS FOR FEEDING AIR TO SMALL BEARINGS OF JOURNAL AREA OF ROTARY DRILL BIT | QUAIM, LAMIA | 3676 | §103 | Non-Final OA | 28d overdue | Pending | Jul 12, 2024 |
| 18770908 | SYSTEM AND METHOD FOR ASSIGNING A SERVICE LIFE ESTIMATE OF A HYDRAULIC CYLINDER | MONSUR, NASIMA | 2858 | §103§112 | Non-Final OA | — | Pending | Jul 12, 2024 |
| 18769486 | SYSTEM AND METHOD OF OPERATING PERCEPTION DEVICES IN MOBILE MACHINES | ANWARI, MACEEH | 3663 | §103 | Non-Final OA | — | Pending | Jul 11, 2024 |
| 18724735 | Longwall Shearer Positioning Method, Pan for Panline, Longwall Shearer System | COY, NICOLE A | 3672 | §101§112Other | Non-Final OA | — | Pending | Jun 27, 2024 |
| 18751648 | BATTERY PACK CONTACT BREAK DETECTION | MONSUR, NASIMA | 2858 | §101§102§103§112 | Non-Final OA | 7d | Pending | Jun 24, 2024 |
| 18750961 | DURABLE CUTTING EDGES WITH VARIABLE DENSITY WEAR PROTECTOR | TRAN, JULIA C | 3671 | §103 | Non-Final OA | — | Pending | Jun 21, 2024 |
| 18740076 | Modular HVDC Busbar Assembly for Electrical System | SHEWAREGED, BETELHEM | 1785 | §103 | Non-Final OA | — | Pending | Jun 11, 2024 |
| 18738983 | REDUCED POWERTRAIN LOAD ON BATTERY CONTACTOR | BARNETT, JOEL | 2849 | §103 | Non-Final OA | — | Pending | Jun 10, 2024 |
| 18736161 | DOOR CLOSING SYSTEM OF AN ENERGY TRANSFER SYSTEM | MORFORD, ALEXANDRA ROBYN | 3658 | §103§112 | Non-Final OA | 4d overdue | Pending | Jun 06, 2024 |
| 18680695 | GROUND FAULT DETECTION TECHNIQUES IN MOBILE MACHINES | BARRON, JEREMIAH JOHN | 2858 | §103§112 | Non-Final OA | 28d | Pending | May 31, 2024 |
| 18678421 | Perception-Based Worksite Control System | TAN, OLIVER E | 3669 | §103 | Non-Final OA | — | Pending | May 30, 2024 |
| 18679099 | EQUIPMENT PROFILING AND AUTOMATIC SENSOR SIGNALING CHANNEL FAILOVER USING MACHINE LEARNING | WONG, LUT | — | §102§103§112 | Non-Final OA | — | Pending | May 30, 2024 |
| 18671029 | OPTIMIZATION OF PARALLEL DC-DC EFFICIENCY ON A BATTERY ELECTRIC MACHINE | PATEL, JIGNESHKUMAR C | — | §103 | Final Rejection | — | Pending | May 22, 2024 |
IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.
Start Free TrialCaterpillar Inc. has 145 pending office actions as of October 2026, spread across 72 art units and 130 examiners.
Alfred H Tsui has the most, with 3 of Caterpillar Inc.'s pending office actions.
Mostly Transportation, E-Commerce & Mechanical Systems (USPTO Tech Center 3600), based on where its pending office actions are examined.
