Technology area: Chemistry & Materials
52 pending office actions • 23 art units • 45 examiners • 0 of 52 (0%) have an AI response strategy ready • 121 patents granted in the last 365 days
Chevron U.s.a. Inc. has 59 pending office actions in Chemistry & Materials. The portfolio spans 52 examiners and 26 art units, indicating a wide examination footprint and a need for coordination across multiple technical groups. Centralized tracking can support consistent disclosure, claim, and amendment practices, while local prosecution decisions will still depend on individual examiner assignments.
DOYLE, BRANDI M is the busiest examiner, with 2 pending matters. The limited concentration means that examiner-specific preparation may assist a small cluster, but it should complement rather than replace broader docket and art-unit management.
Based on the USPTO statutory response window for each pending office action. 13 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. 13 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 | 4 (8%) |
| §101 + other | 7 (13%) |
| §103 only | 16 (31%) |
| §102 only | 1 (2%) |
| §112 only | 2 (4%) |
| Double-patenting only | 1 (2%) |
| Double-patenting + other | 2 (4%) |
| Multi-statute (no §101) | 19 (37%) |
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 |
|---|---|---|---|
| DOYLE, BRANDI M | 2 | 62.6% | +12.1% |
| MCAVOY, ELLEN M | 2 | 72.9% | +8.9% |
| VASISTH, VISHAL V | 2 | 72.5% | +33.4% |
| NGUYEN, TAM M | 2 | 77.1% | +11.7% |
| BOYER, RANDY | 2 | 70.5% | +8.1% |
| SPEER, JOSHUA MAXWELL | 2 | 77.8% | -2.5% |
| VALENCIA, JUAN C | 2 | 86.4% | +7.8% |
| VARMA, ASHISH K | 1 | 74.4% | +32.4% |
| SKAIST, AVI T. | 1 | 64.5% | +42.3% |
| AHUJA, ANURADHA | 1 | 72.7% | +56.2% |
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 |
|---|---|---|---|
| 18042715 | TRIMETAL SUPPORTED CATALYST | VALENCIA, JUAN C | 22d overdue |
| 18043738 | PROCESS AND SYSTEM FOR BASE OIL PRODUCTION USING BIMETALLIC SSZ-91 CATALYST | VALENCIA, JUAN C | 33d |
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 |
|---|---|---|---|
| 18576716 | HIGHLY STRUCTURED, HIGH VINYLIDENE PROPYLENE OLIGOMER AND METHOD OF MAKING | CHONG, JASON Y | 19d overdue |
| 18269754 | PROCESSES FOR PRODUCING DIESEL FROM UNCONVENTIONAL FEEDSTOCKS | SPEER, JOSHUA MAXWELL | 15d |
| 17654632 | SYSTEM AND METHOD FOR SEISMIC VELOCITY AND ANISOTROPIC PARAMETER MODELING | COCCHI, MICHAEL EDWARD | 16d |
| 18697891 | FUEL ADDITIVES FOR LOWERING DEPOSIT AND PARTICULATE EMISSION | TOOMER, CEPHIA D | 43d |
| 18003420 | SILICA IN ROCK SAMPLES | ISLAM, MOHAMMAD K | 65d |
| 19261205 | COMPOSITIONS CONTAINING FRICTION REDUCERS AND METHODS OF USING THEREOF IN OIL AND GAS OPERATIONS | SKAIST, AVI T. | — |
| 19083128 | METHODS FOR IMPROVING HYDROCARBON LIFT AND LIQUID UNLOADING FROM A SUBTERRANEAN FORMATION | AHUJA, ANURADHA | — |
| 19060173 | ENHANCED CIRCULARITY AT ENHANCED ETHYLENE YIELD | CEPLUCH, ALYSSA L | — |
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 |
|---|---|---|---|
| 17634438 | PROCESS FOR IMPROVING BASE OIL YIELDS | DOYLE, BRANDI M | 51d overdue |
| 19352012 | Methods for Hydrocarbon Recovery from Unconventional Formations | VARMA, ASHISH K | — |
| 19261205 | COMPOSITIONS CONTAINING FRICTION REDUCERS AND METHODS OF USING THEREOF IN OIL AND GAS OPERATIONS | SKAIST, AVI T. | — |
| 19202480 | CONVERSION OF WASTE PLASTIC AND OIL BLEND WITH A CONTAMINANT REMOVAL STEP | DOYLE, BRANDI M | — |
| 19083128 | METHODS FOR IMPROVING HYDROCARBON LIFT AND LIQUID UNLOADING FROM A SUBTERRANEAN FORMATION | AHUJA, ANURADHA | — |
| 19060018 | RENEWABLE ETHYLENE AT MINIMUM CARBON INTENSITY | VASISTH, VISHAL V | — |
| 19056501 | ENHANCED RENEWABLE FEEDSTOCK CRACKING USING MODIFIED FCC CATALYSTS | VASISTH, VISHAL V | — |
| 18738917 | PROCESS TO MAKE A RENEWABLE PRODUCT FROM BIOFEEDSTOCK | NGUYEN, TAM M | — |
| Art Unit | Apps |
|---|---|
| 1771 | 17 |
| 2857 | 6 |
| 3674 | 3 |
| 1736 | 3 |
| 1772 | 2 |
| 2858 | 2 |
| 2188 | 2 |
| 2118 | 1 |
| 1776 | 1 |
| 3676 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19352012 | Methods for Hydrocarbon Recovery from Unconventional Formations | VARMA, ASHISH K | 3674 | §103 | Non-Final OA | — | Pending | Oct 07, 2025 |
| 19261205 | COMPOSITIONS CONTAINING FRICTION REDUCERS AND METHODS OF USING THEREOF IN OIL AND GAS OPERATIONS | SKAIST, AVI T. | 3674 | §103§112 | Non-Final OA | — | Pending | Jul 07, 2025 |
| 19202480 | CONVERSION OF WASTE PLASTIC AND OIL BLEND WITH A CONTAMINANT REMOVAL STEP | DOYLE, BRANDI M | 1771 | §103§112DP | Non-Final OA | — | Pending | May 08, 2025 |
| 19085838 | METHOD FOR MAKING HYDRODEOXYGENATION AND HYDROTREATING SLURRY CATALYSTS AND THEIR APPLICATION TO RENEWABLE FUEL PRODUCTION | MCAVOY, ELLEN M | 1771 | DP | Non-Final OA | — | Pending | Mar 20, 2025 |
| 19083128 | METHODS FOR IMPROVING HYDROCARBON LIFT AND LIQUID UNLOADING FROM A SUBTERRANEAN FORMATION | AHUJA, ANURADHA | 3674 | §103§112 | Non-Final OA | — | Pending | Mar 18, 2025 |
| 19060173 | ENHANCED CIRCULARITY AT ENHANCED ETHYLENE YIELD | CEPLUCH, ALYSSA L | 1772 | §103§112 | Non-Final OA | — | Pending | Feb 21, 2025 |
| 19060018 | RENEWABLE ETHYLENE AT MINIMUM CARBON INTENSITY | VASISTH, VISHAL V | 1771 | §102§103§112DP | Non-Final OA | — | Pending | Feb 21, 2025 |
| 19056501 | ENHANCED RENEWABLE FEEDSTOCK CRACKING USING MODIFIED FCC CATALYSTS | VASISTH, VISHAL V | 1771 | §102 | Non-Final OA | — | Pending | Feb 18, 2025 |
| 18880257 | CATALYST AND PROCESS TO MAKE RENEWABLE DIESEL AND SUSTAINABLE AVIATION FUEL | MCAVOY, ELLEN M | 1771 | §103§112 | Non-Final OA | — | Pending | Dec 30, 2024 |
| 18999179 | USE OF BLEND OF POLYSTYRENE WITH HYDROCARBON FEEDSTOCK FOR GASOLINE AND CHEMICALS PREPARATION | GRAHAM, CHANTEL LORAN | 1771 | §103 | Non-Final OA | — | Pending | Dec 23, 2024 |
| 18869743 | QUANTIFICATION OF LIQUID AND CORRECTION OF GAS FLOW RATE IN A GAS PIPELINE USING PHASE BEHAVIOR | ALLEN, ANDRE J | — | §103 | Non-Final OA | — | Pending | Nov 26, 2024 |
| 18862445 | MACHINE LEARNING APPROACH FOR DESCRIPTIVE, PREDICTIVE, AND PRESCRIPTIVE FACILITY OPERATIONS | LU, HUA | 2118 | §103 | Non-Final OA | — | Pending | Nov 01, 2024 |
| 18926115 | MEMBRANE-BASED NATURAL GAS SWEETENING UNDER HUMID CONDITIONS | GAY, JENNIFER HAWKINS | 1776 | §112 | Non-Final OA | — | Pending | Oct 24, 2024 |
| 18853343 | RENEWABLE BIOMASS FEED SLURRY HYDROPROCESSING | HINES, LATOSHA D | 1771 | §102§112 | Non-Final OA | — | Pending | Oct 01, 2024 |
| 18898849 | HYDROCRACKING OPERATION WITH REDUCED ACCUMULATION OF HEAVY POLYNUCLEAR AROMATICS | STEIN, MICHELLE | 1771 | §103§112 | Non-Final OA | — | Pending | Sep 27, 2024 |
| 18887629 | Inhibiting Bridging In Annular Packs Within A Well | YAO, THEODORE N | 3676 | §103 | Non-Final OA | — | Pending | Sep 17, 2024 |
| 18810971 | MOLECULAR SIEVE, BORON ITQ-21, ITS SYNTHESIS AND USE | CAMPANELL, FRANCIS C | 1771 | §112 | Non-Final OA | — | Pending | Aug 21, 2024 |
| 18833649 | DETERMINING AT LEAST ONE PETROPHYSICAL PROPERTY | POPE, DARYL C | 2686 | §102§103 | Non-Final OA | — | Pending | Jul 26, 2024 |
| 18761003 | DETERMINING AN EFFECTIVE STORAGE CAPACITY OF AN UNCONVENTIONAL SUBSURFACE VOLUME OF INTEREST AS A FUNCTION OF POSITION | ULLAH, ARIF | 3625 | §101§103 | Final Rejection | — | Pending | Jul 01, 2024 |
| 18738917 | PROCESS TO MAKE A RENEWABLE PRODUCT FROM BIOFEEDSTOCK | NGUYEN, TAM M | 1771 | §102§103§112 | Non-Final OA | — | Pending | Jun 10, 2024 |
| 18675907 | CABLE PROTECTION APPARATUS | GARFT, CHRISTOPHER | 3632 | §103 | Final Rejection | — | Pending | May 28, 2024 |
| 18665426 | FILTER HOLDERS, FILTRATION SYSTEMS, METHODS OF FILTERING A FLUID, AND METHODS OF MANUFACTURING A FILTRATION SYSTEM | KURTZ, BENJAMIN M | 1779 | §102§103 | Non-Final OA | — | Pending | May 15, 2024 |
| 18697891 | FUEL ADDITIVES FOR LOWERING DEPOSIT AND PARTICULATE EMISSION | TOOMER, CEPHIA D | 1771 | §103§112 | Final Rejection | 43d | Pending | Apr 02, 2024 |
| 18591526 | SYSTEMS FOR HEAT PRESERVATION DURING HYDROGENATION AND DEHYDROGENATION | HENDRICKSON, STUART L | 1736 | §103§112 | Non-Final OA | — | Pending | Feb 29, 2024 |
| 18590356 | IDENTIFICATION OF COMMONALITIES AMONG DIFFERENT DESCRIPTIONS | TURNER, SHELBY AUBURN | 2857 | §101§103§112 | Non-Final OA | — | Pending | Feb 28, 2024 |
| 18431316 | HEALTH MONITORING FOR HYDRAULIC EQUIPMENT COMPONENTS | QUIGLEY, KYLE ROBERT | 2857 | §101§102§103 | Non-Final OA | — | Pending | Feb 02, 2024 |
| 18430229 | SYSTEM AND METHOD FOR GENERATING A MICROBIAL GAS FAVORABILITY INDEX MAP | LEE, BYUNG RO | 2858 | §101 | Final Rejection | — | Pending | Feb 01, 2024 |
| 18576716 | HIGHLY STRUCTURED, HIGH VINYLIDENE PROPYLENE OLIGOMER AND METHOD OF MAKING | CHONG, JASON Y | 1772 | §103§112 | Final Rejection | 19d overdue | Pending | Jan 04, 2024 |
| 18530041 | PROCESS TO REMOVE MERCURY FROM MONOETHYLENE GLYCOL STREAMS | MERKLING, MATTHEW J | 1725 | §102§103§112 | Final Rejection | — | Pending | Dec 05, 2023 |
| 18524847 | SYSTEMS AND METHODS TO ENHANCE HEAVY METALS REMOVAL FROM LIQUID HYDROCARBONS | NGUYEN, TAM M | 1771 | §103 | Non-Final OA | — | Pending | Nov 30, 2023 |
| 18511835 | GAS-LIQUID SEPARATION DEVICE FOR AN EBULLATED BED REACTOR | BUI, DUNG H | 1773 | §102§103 | Final Rejection | — | Pending | Nov 16, 2023 |
| 18503615 | HYBRID POWER SYSTEMS FOR EQUIPMENT USED IN SUBTERRANEAN FIELD OPERATIONS | AHMED, ISTIAQUE | 2116 | §103 | Final Rejection | 2d overdue | Pending | Nov 07, 2023 |
| 18482821 | SYSTEM AND METHOD FOR DISTRIBUTED ACOUSTIC SENSING VERTICAL SEISMIC PROFILE MODELING | ISHIZUKA, YOSHIHISA | 2857 | §101 | Final Rejection | — | Pending | Oct 06, 2023 |
| 18479566 | INTEGRATED FLUID LEAK DETECTION USING MULTIPLE SENSORS | SULTANA, DILARA | 2858 | §103 | Final Rejection | 15d | Pending | Oct 02, 2023 |
| 18552655 | MOLECULAR SIEVE SSZ-92, CATALYST, AND METHODS OF USE THEREOF | BOYER, RANDY | 1771 | §103§112 | Non-Final OA | — | Pending | Sep 26, 2023 |
| 18546132 | MACHINE LEARNING WORKFLOW TO PREDICT SANDING EVENTS | HAO, YI | 2187 | §101§103§112Other | Non-Final OA | — | Pending | Aug 11, 2023 |
| 18361406 | SUBSURFACE REGION MODELING THAT HONORS CONSTRAINTS ON AND CORRELATIONS BETWEEN SUBSURFACE PROPERTIES | WHITE, JAY MICHAEL | 2188 | §101§103 | Non-Final OA | — | Pending | Jul 28, 2023 |
| 18263119 | PROCESS FOR MAKING HEAVY GRADE BASE OIL PRODUCTS | BOYER, RANDY | 1771 | §102§103§112 | Non-Final OA | — | Pending | Jul 26, 2023 |
| 18269915 | HYDROISOMERIZATION CATALYST WITH IMPROVED THERMAL STABILITY | SPEER, JOSHUA MAXWELL | 1736 | §102§103§112 | Non-Final OA | — | Pending | Jun 27, 2023 |
| 18269754 | PROCESSES FOR PRODUCING DIESEL FROM UNCONVENTIONAL FEEDSTOCKS | SPEER, JOSHUA MAXWELL | 1736 | §102§103 | Final Rejection | 15d | Pending | Jun 26, 2023 |
| 18311884 | SYSTEM AND METHOD FOR ASPHALTENE ANOMALY PREDICTION | VAUGHN, RYAN C | 2125 | §103 | Non-Final OA | 46d | Pending | May 03, 2023 |
| 18043738 | PROCESS AND SYSTEM FOR BASE OIL PRODUCTION USING BIMETALLIC SSZ-91 CATALYST | VALENCIA, JUAN C | 1771 | §103 | Final Rejection | 33d | Pending | Mar 02, 2023 |
| 18116214 | CATALYST FOR NON-OXIDATIVE CONVERSION OF HYDROCARBONS TO HYDROGEN | SIMKINS, SLONE ELIZABETH | 1735 | §102§103 | Non-Final OA | — | Pending | Mar 01, 2023 |
| 18042715 | TRIMETAL SUPPORTED CATALYST | VALENCIA, JUAN C | 1771 | §103 | Final Rejection | 22d overdue | Pending | Feb 23, 2023 |
| 18003420 | SILICA IN ROCK SAMPLES | ISLAM, MOHAMMAD K | 2857 | §101§102 | Non-Final OA | 65d | Pending | Dec 27, 2022 |
| 18003459 | PROPERTIES OF ROCKS | KNOX, KALERIA | 2857 | §101§103 | Final Rejection | — | Pending | Dec 27, 2022 |
| 18003449 | STRATIGRAPHIC METHODS | ABULABAN, ABDALLAH | 3645 | §103 | Final Rejection | 12d | Pending | Dec 27, 2022 |
| 17982089 | PROBABILISTIC CLASSIFICATION OF ROCK TYPES USING MULTIVARIATE PROBABILITY DISTRIBUTIONS OF SUBSURFACE PROPERTIES AND SPATIAL CONTINUITY | DESTA, ELIAS | 2857 | §101 | Final Rejection | — | Pending | Nov 07, 2022 |
| 17774085 | Silica-Alumina Composite Materials for Hydroprocessing Applications | RUMP, RICHARD M | 1759 | §103 | Final Rejection | 57d | Pending | May 03, 2022 |
| 17654632 | SYSTEM AND METHOD FOR SEISMIC VELOCITY AND ANISOTROPIC PARAMETER MODELING | COCCHI, MICHAEL EDWARD | 2188 | §101 | Final Rejection | 16d | Pending | Mar 14, 2022 |
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Start Free TrialChevron U.s.a. Inc. has 52 pending office actions as of October 2026, spread across 23 art units and 45 examiners.
Brandi M Doyle has the most, with 2 of Chevron U.s.a. Inc.'s pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
