Prosecution Insights
Prosecution Insights
Technology areas: Biotechnology & Pharmaceuticals • Chemistry & Materials
24 pending office actions • 11 art units • 18 examiners • 0 of 24 (0%) have an AI response strategy ready • 11 patents granted in the last 365 days
Celanese International Corporation maintains a significant presence in the Chemistry & Materials technology area with 24 pending office actions. These matters are spread across 18 distinct examiners and 11 distinct art units, reflecting a highly diversified prosecution landscape. The count of 11 distinct art units suggests that the company's innovations span a variety of technical sub-specialties within the broader chemistry field.
KOLB, KATARZYNA I is the busiest examiner for the portfolio, currently managing 4 pending office actions. This concentration of 4 actions under one examiner contrasts with the overall distribution, where 18 distinct examiners handle the 24 pending office actions. This indicates that while most examiners handle fewer matters, KOLB, KATARZYNA I has a more substantial role in the company's current patent review process.
The ratio of pending office actions to art units shows that prosecution is not confined to a single group. Practitioners must navigate the specific tendencies of the 18 distinct examiners, which may lead to varying timelines and requirements across the portfolio's active matters.
Based on the USPTO statutory response window for each pending office action. 12 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. 12 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 | 10 (42%) |
| §112 only | 2 (8%) |
| Double-patenting + other | 4 (17%) |
| Multi-statute (no §101) | 6 (25%) |
| No statute on record | 2 (8%) |
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 |
|---|---|---|---|
| KOLB, KATARZYNA I | 4 | 45.2% | +15.9% |
| HABTE, KAHSAY | 4 | 85.0% | +7.4% |
| REDDY, KARUNA P | 1 | 42.5% | +10.4% |
| CHIU, TAK LIANG | 1 | 48.8% | +20.7% |
| RIPA, BRYAN D | 1 | 53.9% | +37.2% |
| CHEN, VIVIAN | 1 | 56.7% | +29.1% |
| KEELING, ALEXANDER W | 1 | 55.9% | +38.1% |
| BELUNIS, THOMAS JAMES | 1 | — | — |
| BLEDSOE, JOSHUA CALEB | 1 | 44.4% | +52.7% |
| DU, SURBHI M | 1 | 66.9% | +29.1% |
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 |
|---|---|---|---|
| 18335285 | Acesulfame Potassium Compositions and Processes for Producing Same | HABTE, KAHSAY | 15d |
| 18335296 | Acesulfame Potassium Compositions and Processes for Producing Same | HABTE, KAHSAY | 20d |
Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 6 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18335662 | Cellulose Ester Polymer Product With Increased Melt Flow Properties and Reflectance | KOLB, KATARZYNA I | 9d |
| 18641511 | Thermoplastic Vulcanizates Having Lower Carbon Footprint | REDDY, KARUNA P | — |
| 18431505 | Porous Polymer Product For Removing Contaminants From A Fluid Stream | CHIU, TAK LIANG | — |
| 18399296 | Thermoplastic Vulcanizate Gasket for Use in an Electrolyzer | RIPA, BRYAN D | — |
| 18549070 | ADHESIVES FOR FILM LAMINATION AND PRODUCTS MADE THEREFROM | DU, SURBHI M | — |
| 17972998 | Sustainable High Density Polyethylene and Process For Making Same | MENON, KRISHNAN S | — |
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 |
|---|---|---|---|
| 18312134 | Fiber Reinforced Thermoplastic Polymer Composition With Flame Retardant Properties | KOLB, KATARZYNA I | 4d overdue |
| 18335662 | Cellulose Ester Polymer Product With Increased Melt Flow Properties and Reflectance | KOLB, KATARZYNA I | 9d |
| 18356569 | Composition Containing Cellulose Ester Polymer With Enhanced Melt Strength Agent | KOLB, KATARZYNA I | 13d |
| 18494139 | Fiber Reinforced Thermoplastic Polymer Composition Containing Flame Retardant Package | KOLB, KATARZYNA I | 14d |
| 18641511 | Thermoplastic Vulcanizates Having Lower Carbon Footprint | REDDY, KARUNA P | — |
| 18431505 | Porous Polymer Product For Removing Contaminants From A Fluid Stream | CHIU, TAK LIANG | — |
| 18399296 | Thermoplastic Vulcanizate Gasket for Use in an Electrolyzer | RIPA, BRYAN D | — |
| 18545088 | Multi-Layer Film With Heat Seal Properties | CHEN, VIVIAN | — |
| Art Unit | Apps |
|---|---|
| 1767 | 5 |
| 1624 | 4 |
| 1777 | 2 |
| 1763 | 2 |
| 1787 | 1 |
| 1762 | 1 |
| 1765 | 1 |
| 1749 | 1 |
| 1692 | 1 |
| 1759 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 18641511 | Thermoplastic Vulcanizates Having Lower Carbon Footprint | REDDY, KARUNA P | — | §102§103 | Non-Final OA | — | Pending | Apr 22, 2024 |
| 18431505 | Porous Polymer Product For Removing Contaminants From A Fluid Stream | CHIU, TAK LIANG | 1777 | §102§103§112 | Non-Final OA | — | Pending | Feb 02, 2024 |
| 18399296 | Thermoplastic Vulcanizate Gasket for Use in an Electrolyzer | RIPA, BRYAN D | — | §103§112 | Non-Final OA | — | Pending | Dec 28, 2023 |
| 18545088 | Multi-Layer Film With Heat Seal Properties | CHEN, VIVIAN | 1787 | §103 | Non-Final OA | — | Pending | Dec 19, 2023 |
| 18500579 | Electrolysis Film | KEELING, ALEXANDER W | — | §103 | Final Rejection | — | Pending | Nov 02, 2023 |
| 18500405 | FUNCTIONALIZED POROUS COMPOSITES | BELUNIS, THOMAS JAMES | — | §102§103§112DP | Non-Final OA | — | Pending | Nov 02, 2023 |
| 18494139 | Fiber Reinforced Thermoplastic Polymer Composition Containing Flame Retardant Package | KOLB, KATARZYNA I | 1767 | §102§103DP | Final Rejection | 14d | Pending | Oct 25, 2023 |
| 18479237 | Low Emission Polyoxymethylene Composition With Color Stability | BLEDSOE, JOSHUA CALEB | 1762 | §103 | Final Rejection | — | Pending | Oct 02, 2023 |
| 18549070 | ADHESIVES FOR FILM LAMINATION AND PRODUCTS MADE THEREFROM | DU, SURBHI M | 1765 | §103§112 | Final Rejection | — | Pending | Sep 05, 2023 |
| 18358523 | Gel Extruded Articles With Molecular Weight Retention | FISCHER, JUSTIN R | 1749 | §103 | Non-Final OA | — | Pending | Jul 25, 2023 |
| 18356557 | Bio-Based Polymer Composition Containing Odor Masking Agent | EASHOO, MARK | 1767 | §103 | Non-Final OA | 28d | Pending | Jul 21, 2023 |
| 18356569 | Composition Containing Cellulose Ester Polymer With Enhanced Melt Strength Agent | KOLB, KATARZYNA I | 1767 | §103 | Non-Final OA | 13d | Pending | Jul 21, 2023 |
| 18335345 | Acesulfame Potassium Compositions and Processes for Producing Same | HABTE, KAHSAY | 1624 | Other | Final Rejection | 22d | Pending | Jun 15, 2023 |
| 18335325 | Acesulfame Potassium Compositions and Processes for Producing Same | HABTE, KAHSAY | 1624 | Other | Final Rejection | 22d | Pending | Jun 15, 2023 |
| 18335662 | Cellulose Ester Polymer Product With Increased Melt Flow Properties and Reflectance | KOLB, KATARZYNA I | 1767 | §102§103Other | Non-Final OA | 9d | Pending | Jun 15, 2023 |
| 18335285 | Acesulfame Potassium Compositions and Processes for Producing Same | HABTE, KAHSAY | 1624 | §112Other | Final Rejection | 15d | Pending | Jun 15, 2023 |
| 18335296 | Acesulfame Potassium Compositions and Processes for Producing Same | HABTE, KAHSAY | 1624 | §112Other | Final Rejection | 20d | Pending | Jun 15, 2023 |
| 18312134 | Fiber Reinforced Thermoplastic Polymer Composition With Flame Retardant Properties | KOLB, KATARZYNA I | 1767 | §102§103DP | Non-Final OA | 4d overdue | Pending | May 04, 2023 |
| 18079484 | Flame Retardant Thermoplastic Polymer Composition | USELDING, JOHN E | 1763 | §103§112DPOther | Non-Final OA | — | Pending | Dec 12, 2022 |
| 17928565 | PROCESS FOR ACETIC ACID PRODUCTION BY REMOVING PERMANGANATE REDUCING COMPOUNDS | BAHTA, MEDHANIT W | 1692 | §103 | Non-Final OA | 18d overdue | Pending | Nov 29, 2022 |
| 17972998 | Sustainable High Density Polyethylene and Process For Making Same | MENON, KRISHNAN S | 1777 | §102§103 | Non-Final OA | — | Pending | Oct 25, 2022 |
| 17783259 | ROOFING TILE COATING COMPOSITIONS | RIETH, STEPHEN EDWARD | 1759 | §103 | Final Rejection | 42d overdue | Pending | Jun 07, 2022 |
| 17701008 | Thermoformed Articles Made From Bio-Based Polymers and Compositions Therefore | HANDVILLE, BRIAN | 1783 | §103 | Non-Final OA | 2d overdue | Pending | Mar 22, 2022 |
| 17473456 | WOOD STAINS AND PENETRATION PRIMERS COMPRISING LOW VOC LEVEL AQUEOUS DISPERSIONS | CAI, WENWEN | 1763 | §103 | Non-Final OA | — | Pending | Sep 13, 2021 |
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