Prosecution Insights
Last updated: October 27, 2026

ExxonMobil Chemical Patents Inc.

Technology area: Chemistry & Materials

26 pending office actions • 13 art units • 22 examiners • 0 of 26 (0%) have an AI response strategy ready • 79 patents granted in the last 365 days

Analysis

ExxonMobil Chemical Patents Inc. has 25 pending office actions in Chemistry & Materials. The matters involve 21 distinct examiners across 12 distinct art units, showing broad examiner coverage and repeated technical-group assignments.

STEIN, MICHELLE is the busiest examiner, with 2 pending actions. The limited concentration allows some coordination for those matters, but the wider portfolio requires art-unit-specific analysis and application-level response planning.

Repeated art-unit involvement creates an opportunity to compare claim amendments, technical explanations, and prior-art arguments. A centralized prosecution record can support consistency while preserving flexibility for different examiners and technologies.

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

Portfolio Summary

26
Total Pending OAs
17
Non-Final OAs
7
Final Rejections
2
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 9 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

2
Overdue
0
Due this week
4
Due this month
3
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. 9 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (2)Due ≤ 30 days (4)Due ≤ 60 days (3)

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.

12
Hard (46%)
13
Medium (50%)
1
Easy (4%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only11 (42%)
§112 only1 (4%)
Double-patenting + other2 (8%)
Multi-statute (no §101)12 (46%)

Industry Mix

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

23
Life Sciences
88% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
1
Semiconductors
4% of docket
0
Mechanical / Eng
0% of docket
2
Business / Other
8% 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.

260 h
Manual time on pending OAs
52 h
Time saved (low, 20%)
91 h
Time saved (mid, 35%)
2.3 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
STEIN, MICHELLE 2 45.3% +35.5%
NGUYEN, TAM M 2 77.1% +11.7%
TAYLOR, JORDAN W 2 63.2% +36.9%
BOYER, RANDY 2 70.5% +8.1%
CAMPANELL, FRANCIS C 1 73.0% +9.5%
ROBINSON, RENEE E 1 73.7% +24.2%
SINGH, PREM C 1 58.9% +33.6%
GOLOBOY, JAMES C 1 63.7% +8.7%
WALTERS JR, ROBERT S 1 51.6% +50.4%
HALL, DEVE V. 1 74.8% +16.2%

Hard Cases (12)

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 #TitleExaminerDue in
18040314 Methods for Delivery of Non-Aromatic Solutions to Polymerization Reactors HEINCER, LIAM J 9d
18270159 Methods and Systems for Cracking Hydrocarbons BOYER, RANDY 12d
18566981 Processes for Dehydrogenating Alkane and Alkyl Aromatic Hydrocarbons NGUYEN, TAM M 56d
18161536 METHOD OF DETERMINING SUPERFICIAL GAS VELOCITY IN FLUIDIZED BED REACTORS NGUYEN, QUANG X.L. 56d
19060235 Alkylated Naphthalene Compositions Obtained Through Blending Or Processing Of Monoalkylated And Dialkylated Naphthalene Fractions CAMPANELL, FRANCIS C —
18872371 Production of P-Xylene by Liquid-Phase Isomerization and Separation Thereof ROBINSON, RENEE E —
18863213 Processes and Systems for Fractionating a Pyrolysis Effluent SINGH, PREM C —
18696736 FLUOROPOLYMER-FREE PROCESSING AIDS FOR ETHYLENE-BASED POLYMERS WALTERS JR, ROBERT S —

Interview Candidates (10)

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 #TitleExaminerDue in
17627842 Processes and Systems for Upgrading a Hydrocarbon-Containing Feed STEIN, MICHELLE 15d
18208929 Processes for Calcining a Catalyst TAYLOR, JORDAN W 21d
18566981 Processes for Dehydrogenating Alkane and Alkyl Aromatic Hydrocarbons NGUYEN, TAM M 56d
18872371 Production of P-Xylene by Liquid-Phase Isomerization and Separation Thereof ROBINSON, RENEE E —
18863213 Processes and Systems for Fractionating a Pyrolysis Effluent SINGH, PREM C —
18696736 FLUOROPOLYMER-FREE PROCESSING AIDS FOR ETHYLENE-BASED POLYMERS WALTERS JR, ROBERT S —
18696241 FLUORINE-FREE POLYMER PROCESSING AID BLENDS HALL, DEVE V. —
18691105 Pyrolysis Processes for Upgrading a Hydrocarbon Feed STEIN, MICHELLE —

Top Art Units

Art UnitApps
1771 10
1763 2
1764 2
1738 2
1717 1
1765 1
1742 1
1762 1
6221 1
1731 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19060235 Alkylated Naphthalene Compositions Obtained Through Blending Or Processing Of Monoalkylated And Dialkylated Naphthalene Fractions CAMPANELL, FRANCIS C 1771 §102§103 Non-Final OA — Pending Feb 21, 2025
18872371 Production of P-Xylene by Liquid-Phase Isomerization and Separation Thereof ROBINSON, RENEE E — §102§103§112 Non-Final OA — Pending Dec 06, 2024
18863213 Processes and Systems for Fractionating a Pyrolysis Effluent SINGH, PREM C 1771 §102§103 Non-Final OA — Pending Nov 05, 2024
18862811 Co-Processing Plastic Waste in Cokers for Jet Fuel Production GOLOBOY, JAMES C 1771 §103 Non-Final OA — Pending Nov 04, 2024
18696736 FLUOROPOLYMER-FREE PROCESSING AIDS FOR ETHYLENE-BASED POLYMERS WALTERS JR, ROBERT S 1717 §102§103Other Non-Final OA — Pending Mar 28, 2024
18696241 FLUORINE-FREE POLYMER PROCESSING AID BLENDS HALL, DEVE V. 1763 §112DP Non-Final OA — Pending Mar 27, 2024
18691105 Pyrolysis Processes for Upgrading a Hydrocarbon Feed STEIN, MICHELLE 1771 §103 Final Rejection — Pending Mar 12, 2024
18681935 Methods for Preparing Polyhydroxyalkanoate Polymer Compositions SERGENT, RABON A 1765 §102§112 Non-Final OA — Pending Feb 07, 2024
18579568 Processes for Regenerating Catalysts and for Upgrading Alkanes and/or Alkyl Aromatic Hydrocarbons JOHNSON, CHRISTINA ANN 1742 §102§103DP Non-Final OA — Pending Jan 16, 2024
18566981 Processes for Dehydrogenating Alkane and Alkyl Aromatic Hydrocarbons NGUYEN, TAM M 1771 §103§112 Final Rejection 56d Pending Dec 04, 2023
18565814 Method to Activate Carbene and Carbyne Complexes and Their Use in Metathesis Polymerization BROOKS, KREGG T 1764 §102§103§112 Non-Final OA — Pending Nov 30, 2023
18519762 Guaiazulene-Based Metallocene Catalysts for Olefin Polymerization LEE, RIP A 1762 §102§103 Non-Final OA — Pending Nov 27, 2023
18562477 Processes for Regenerating Catalysts and for Upgrading Alkanes and/or Alkyl Aromatic Hydrocarbons TAYLOR, JORDAN W 6221 §103 Non-Final OA — Pending Nov 20, 2023
18550397 Processes and Systems for Steam Cracking Hydrocarbon Feeds BOYER, RANDY 1771 §102§103 Non-Final OA — Pending Sep 13, 2023
18260201 PROCESSES FOR POLYMERIZING ONE OR MORE OLEFINS BRANCH, CATHERINE S 1763 §103 Non-Final OA — Pending Jun 30, 2023
18270159 Methods and Systems for Cracking Hydrocarbons BOYER, RANDY 1771 §102§103 Final Rejection 12d Pending Jun 28, 2023
18259520 Polyolefin-Based Ionomers and Production Thereof KAUCHER, MARK S 1764 §112 Non-Final OA — Pending Jun 27, 2023
18208929 Processes for Calcining a Catalyst TAYLOR, JORDAN W 1738 §103 Final Rejection 21d Pending Jun 13, 2023
18253835 Improved Process to Prepare Catalyst from In-Situ Formed Alumoxane CHU, YONG LIANG 1731 §103Other Non-Final OA — Pending May 22, 2023
18252095 Nonwoven Fabrics with Improved Haptics and Mechanical Properties IMANI, ELIZABETH MARY COLE 1789 §103 Final Rejection 124d overdue Pending May 08, 2023
18248965 Production of Alkylaromatic Compounds PO, MING CHEUNG 1771 §103 Final Rejection 3d overdue Pending Apr 13, 2023
18042386 Processes for Making Linear Alpha-Olefins NGUYEN, TAM M 1771 §103 Non-Final OA — Pending Feb 21, 2023
18040314 Methods for Delivery of Non-Aromatic Solutions to Polymerization Reactors HEINCER, LIAM J 1767 §102§103 Non-Final OA 9d Pending Feb 02, 2023
18161536 METHOD OF DETERMINING SUPERFICIAL GAS VELOCITY IN FLUIDIZED BED REACTORS NGUYEN, QUANG X.L. 2853 §102§103 Non-Final OA 56d Pending Jan 30, 2023
17999287 Process for Production of Thermoplastic Vulcanizates using Supported Catalyst Systems and Compositions Made Therefrom PIRO, NICHOLAS ANTHONY 1738 §103Other Non-Final OA 34d Pending Nov 18, 2022
17627842 Processes and Systems for Upgrading a Hydrocarbon-Containing Feed STEIN, MICHELLE 1771 §103Other Final Rejection 15d Pending Jan 18, 2022

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Frequently Asked Questions

How many pending USPTO office actions does ExxonMobil Chemical Patents Inc. have?

ExxonMobil Chemical Patents Inc. has 26 pending office actions as of October 2026, spread across 13 art units and 22 examiners.

Which USPTO examiner handles the most ExxonMobil Chemical Patents Inc. applications?

Michelle Stein has the most, with 2 of ExxonMobil Chemical Patents Inc.'s pending office actions.

What technology area are ExxonMobil Chemical Patents Inc.'s patent applications in?

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

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