Technology area: Chemistry & Materials
13 pending office actions • 8 art units • 10 examiners • 0 of 13 (0%) have an AI response strategy ready • 12 patents granted in the last 365 days
Huntsman International LLC has 15 pending office actions in Chemistry & Materials. The matters involve 11 examiners across 9 art units, indicating a distributed docket with some repeated examiner and technical assignments. The spread supports organizing prosecution review by both examiner and art unit.
RIOJA, MELISSA A is the busiest examiner, with 4 pending actions. That examiner represents the principal identified concentration and may warrant coordinated review of responses and recurring issues. The balance of the docket remains distributed, so portfolio controls should also account for the other examiner and art-unit assignments.
Based on the USPTO statutory response window for each pending office action. 5 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. 5 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 |
|---|---|
| §103 only | 7 (54%) |
| §102 only | 1 (8%) |
| Multi-statute (no §101) | 5 (38%) |
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 |
|---|---|---|---|
| RIOJA, MELISSA A | 3 | 49.3% | +54.1% |
| KRYLOVA, IRINA | 2 | 36.6% | +48.3% |
| LEONARD, MICHAEL L | 1 | 63.7% | +8.3% |
| WANG, ALEXANDER A | 1 | 65.7% | +21.5% |
| SMITH, JENNIFER A | 1 | 60.9% | +26.9% |
| XU, JIANGTIAN | 1 | 64.9% | +35.5% |
| CARR, DEBORAH D | 1 | 81.8% | +2.9% |
| RIETH, STEPHEN EDWARD | 1 | 45.5% | +33.7% |
| DELCOTTO, GREGORY R | 1 | 54.1% | +75.7% |
| HARRIS, BRITTANY SHARON | 1 | 48.7% | +35.4% |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 18278308 | MOULDED POLYURETHANE FLEXIBLE FOAMS HAVING IMPROVED DEMOULDING TIME | KRYLOVA, IRINA | — |
| 18697491 | METHOD OF PRODUCING ALKOXYLATED ETHER AMINES AND USES THEREOF | CARR, DEBORAH D | — |
| 18692073 | HINDERED ETHERAMINE POLYURETHANE CATALYSTS | RIETH, STEPHEN EDWARD | — |
| 18286404 | HYDROPHILIC POLYETHER AMINE SOLUTION AND USES THEREOF | DELCOTTO, GREGORY R | — |
| 17915046 | Acid-Blocked Alkylaminopyridine Catalysts For Polyurethane Foam | RIOJA, MELISSA A | — |
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 |
|---|---|---|---|
| 18019415 | A REACTION MIXTURE FOR MANUFACTURING AN INORGANIC-FILLER BASED CLOSED-CELL RIGID POLYURETHANE OR POLYISOCYANURATE CONTAINING FOAM | KRYLOVA, IRINA | 43d overdue |
| 18032235 | ELASTOMERIC POLYURETHANE-POLYUREA COMPRISING WATER BLOWN FOAM HAVING IMPROVED MECHANICAL PROPERTIES | RIOJA, MELISSA A | 5d |
| 18282337 | METHOD FOR MAKING A LOW DENSITY THERMALLY RECYCLABLE POLYMER FOAM | WANG, ALEXANDER A | 40d |
| 18020313 | Amine Oxides for Etching, Stripping and Cleaning Applications | HARRIS, BRITTANY SHARON | 41d |
| 18023989 | A POLYISOCYANATE COMPOSITION AND A POLYURETHANE COMPOSITION OBTAINED THEREFROM | XU, JIANGTIAN | 70d |
| 18280704 | WATER SUBMERSIBLE CONTROLLED RELEASE FERTILIZER PARTICLE | SMITH, JENNIFER A | — |
| 18278308 | MOULDED POLYURETHANE FLEXIBLE FOAMS HAVING IMPROVED DEMOULDING TIME | KRYLOVA, IRINA | — |
| 17928558 | USE OF EPOXY COMPOUNDS AS CARBON DIOXIDE SCAVENGERS IN PIR COMPRISING FOAMS FOR SUPERIOR THERMAL INSULATION PROPERTIES | RIOJA, MELISSA A | — |
| Art Unit | Apps |
|---|---|
| 1764 | 5 |
| 1761 | 2 |
| 1787 | 1 |
| 1741 | 1 |
| 1731 | 1 |
| 1762 | 1 |
| 1691 | 1 |
| 1759 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 18863384 | Thermoplastic Polyurethane and Uses Thereof | LEONARD, MICHAEL L | 1787 | §102 | Non-Final OA | — | Pending | Nov 06, 2024 |
| 18282337 | METHOD FOR MAKING A LOW DENSITY THERMALLY RECYCLABLE POLYMER FOAM | WANG, ALEXANDER A | 1741 | §103 | Final Rejection | 40d | Pending | Sep 15, 2023 |
| 18280704 | WATER SUBMERSIBLE CONTROLLED RELEASE FERTILIZER PARTICLE | SMITH, JENNIFER A | 1731 | §103 | Non-Final OA | — | Pending | Sep 07, 2023 |
| 18278308 | MOULDED POLYURETHANE FLEXIBLE FOAMS HAVING IMPROVED DEMOULDING TIME | KRYLOVA, IRINA | 1764 | §103§112 | Final Rejection | — | Pending | Aug 22, 2023 |
| 18032235 | ELASTOMERIC POLYURETHANE-POLYUREA COMPRISING WATER BLOWN FOAM HAVING IMPROVED MECHANICAL PROPERTIES | RIOJA, MELISSA A | 1764 | §103 | Non-Final OA | 5d | Pending | Apr 17, 2023 |
| 18023989 | A POLYISOCYANATE COMPOSITION AND A POLYURETHANE COMPOSITION OBTAINED THEREFROM | XU, JIANGTIAN | 1762 | §103 | Final Rejection | 70d | Pending | Feb 28, 2023 |
| 18019415 | A REACTION MIXTURE FOR MANUFACTURING AN INORGANIC-FILLER BASED CLOSED-CELL RIGID POLYURETHANE OR POLYISOCYANURATE CONTAINING FOAM | KRYLOVA, IRINA | 1764 | §103 | Non-Final OA | 43d overdue | Pending | Feb 02, 2023 |
| 17928558 | USE OF EPOXY COMPOUNDS AS CARBON DIOXIDE SCAVENGERS IN PIR COMPRISING FOAMS FOR SUPERIOR THERMAL INSULATION PROPERTIES | RIOJA, MELISSA A | 1764 | §103 | Non-Final OA | — | Pending | Nov 29, 2022 |
| 18697491 | METHOD OF PRODUCING ALKOXYLATED ETHER AMINES AND USES THEREOF | CARR, DEBORAH D | 1691 | §103§112 | Non-Final OA | — | Pending | Apr 01, 2024 |
| 18692073 | HINDERED ETHERAMINE POLYURETHANE CATALYSTS | RIETH, STEPHEN EDWARD | 1759 | §102§103 | Non-Final OA | — | Pending | Mar 14, 2024 |
| 18286404 | HYDROPHILIC POLYETHER AMINE SOLUTION AND USES THEREOF | DELCOTTO, GREGORY R | 1761 | §102§103 | Non-Final OA | — | Pending | Oct 11, 2023 |
| 18020313 | Amine Oxides for Etching, Stripping and Cleaning Applications | HARRIS, BRITTANY SHARON | 1761 | §103 | Non-Final OA | 41d | Pending | Feb 08, 2023 |
| 17915046 | Acid-Blocked Alkylaminopyridine Catalysts For Polyurethane Foam | RIOJA, MELISSA A | 1764 | §103§112 | Final Rejection | — | Pending | Sep 27, 2022 |
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Start Free TrialHuntsman International LLC has 13 pending office actions as of October 2026, spread across 8 art units and 10 examiners.
Melissa A Rioja has the most, with 3 of Huntsman International LLC's pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
