Prosecution Insights
Last updated: October 25, 2026

Chevron Phillips Chemical Company L.P.

Technology area: Chemistry & Materials

9 pending office actions • 8 art units • 9 examiners • 0 of 9 (0%) have an AI response strategy ready • 35 patents granted in the last 365 days

Analysis

Chevron Phillips Chemical Company L.P. has 9 pending office actions in Chemistry & Materials. The matters involve 9 examiners and 8 art units, indicating broad examiner distribution and exposure across multiple examination groups.

CHONG, JASON Y is the busiest examiner, with 1 pending matter. Since the identified workload is dispersed, counsel should prioritize centralized docket control and matter-specific response development rather than relying on a single examiner relationship.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Portfolio Summary

9
Total Pending OAs
6
Non-Final OAs
3
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 3 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

1
Overdue
0
Due this week
1
Due this month
1
Due in next 60 days
0
Due later

Deadline Fire Line

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. 3 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (1)Due ≤ 30 days (1)Due ≤ 60 days (1)

Case Difficulty Mix

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.

5
Hard (56%)
4
Medium (44%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other1 (11%)
§103 only4 (44%)
Multi-statute (no §101)4 (44%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

9
Life Sciences
100% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
0
Mechanical / Eng
0% of docket
0
Business / Other
0% of docket

Time-on-OA Estimate

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.

90 h
Manual time on pending OAs
18 h
Time saved (low, 20%)
31 h
Time saved (mid, 35%)
0.8 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
CHONG, JASON Y 1 73.3% +18.1%
NGUYEN, TAM M 1 77.1% +11.7%
ZOTOV, VLADIMIR VLADIMIROVIC 1 — —
SPEER, JOSHUA MAXWELL 1 77.8% -2.5%
CEPLUCH, ALYSSA L 1 62.8% +23.9%
CARR, DEBORAH D 1 81.8% +2.9%
LALISSE, REMY FREDERIC 1 77.8% +0.0%
MCCULLEY, MEGAN CASSANDRA 1 58.6% +16.1%
BUI, DUNG H 1 77.8% +25.5%

Hard Cases (5)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 5 ordered by deadline are shown.

App #TitleExaminerDue in
18456557 METHODS FOR MAKING SUPPORTED LATE TRANSITION METAL CATALYSTS LALISSE, REMY FREDERIC 35d overdue
18731269 CONVERTING HYDROGENATION CATALYST DEACTIVATION COMPOUNDS TO NONREACTIVE COMPOUNDS UPSTREAM OF A LIQUID PHASE HYDROGENATION REACTOR CHONG, JASON Y —
18598080 DUAL METALLOCENE POLYETHYLENE WITH IMPROVED ESCR FOR ROTOMOLDED, INJECTION MOLDED, AND RELATED PRODUCTS ZOTOV, VLADIMIR VLADIMIROVIC —
18597726 ENHANCED REPLACEMENT OF SELECTIVE CATALYTIC REDUCTION BEDS IN ETHYLENE FURNACES SPEER, JOSHUA MAXWELL —
18419693 METHOD FOR THE PREPARATION OF ALKENYL HALIDES CARR, DEBORAH D —

Interview Candidates (5)

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 #TitleExaminerDue in
18145665 INCORPORATING ADDITIVES INTO MOLTEN POLYMER VIA SLURRY INJECTION UPSTREAM OF A HOPPER MCCULLEY, MEGAN CASSANDRA 23d
18428349 OLEFIN/PARAFFIN SEPARATION USING RECTIFIED ETS-4 CEPLUCH, ALYSSA L 34d
18731269 CONVERTING HYDROGENATION CATALYST DEACTIVATION COMPOUNDS TO NONREACTIVE COMPOUNDS UPSTREAM OF A LIQUID PHASE HYDROGENATION REACTOR CHONG, JASON Y —
18642892 PHOSPHINE-IMINO-QUINOLINE AND RELATED LIGANDS FOR USE IN ETHYLENE OLIGOMERIZATION PROCESSES NGUYEN, TAM M —
18059844 SYSTEMS AND TECHNIQUES FOR POLYMER PRODUCT WITHDRAWAL BUI, DUNG H —

Top Art Units

Art UnitApps
1772 2
1771 1
1765 1
1736 1
1691 1
1732 1
1767 1
1773 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18731269 CONVERTING HYDROGENATION CATALYST DEACTIVATION COMPOUNDS TO NONREACTIVE COMPOUNDS UPSTREAM OF A LIQUID PHASE HYDROGENATION REACTOR CHONG, JASON Y 1772 §102§103 Non-Final OA — Pending Jun 01, 2024
18642892 PHOSPHINE-IMINO-QUINOLINE AND RELATED LIGANDS FOR USE IN ETHYLENE OLIGOMERIZATION PROCESSES NGUYEN, TAM M 1771 §103 Non-Final OA — Pending Apr 23, 2024
18598080 DUAL METALLOCENE POLYETHYLENE WITH IMPROVED ESCR FOR ROTOMOLDED, INJECTION MOLDED, AND RELATED PRODUCTS ZOTOV, VLADIMIR VLADIMIROVIC 1765 §102§103 Non-Final OA — Pending Mar 07, 2024
18597726 ENHANCED REPLACEMENT OF SELECTIVE CATALYTIC REDUCTION BEDS IN ETHYLENE FURNACES SPEER, JOSHUA MAXWELL 1736 §101§102§112 Non-Final OA — Pending Mar 06, 2024
18428349 OLEFIN/PARAFFIN SEPARATION USING RECTIFIED ETS-4 CEPLUCH, ALYSSA L 1772 §103 Non-Final OA 34d Pending Jan 31, 2024
18419693 METHOD FOR THE PREPARATION OF ALKENYL HALIDES CARR, DEBORAH D 1691 §102§103§112 Non-Final OA — Pending Jan 23, 2024
18456557 METHODS FOR MAKING SUPPORTED LATE TRANSITION METAL CATALYSTS LALISSE, REMY FREDERIC 1732 §102§103 Final Rejection 35d overdue Pending Aug 28, 2023
18145665 INCORPORATING ADDITIVES INTO MOLTEN POLYMER VIA SLURRY INJECTION UPSTREAM OF A HOPPER MCCULLEY, MEGAN CASSANDRA 1767 §103 Final Rejection 23d Pending Dec 22, 2022
18059844 SYSTEMS AND TECHNIQUES FOR POLYMER PRODUCT WITHDRAWAL BUI, DUNG H 1773 §103 Final Rejection — Pending Nov 29, 2022

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Frequently Asked Questions

How many pending USPTO office actions does Chevron Phillips Chemical Company L.P. have?

Chevron Phillips Chemical Company L.P. has 9 pending office actions as of October 2026, spread across 8 art units and 9 examiners.

Which USPTO examiner handles the most Chevron Phillips Chemical Company L.P. applications?

Jason Y Chong has the most, with 1 of Chevron Phillips Chemical Company L.P.'s pending office actions.

What technology area are Chevron Phillips Chemical Company L.P.'s patent applications in?

Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.

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