Technology area: Chemistry & Materials
51 pending office actions • 26 art units • 47 examiners • 0 of 51 (0%) have an AI response strategy ready • 33 patents granted in the last 365 days
Mitsui Chemicals Inc. has 56 pending office actions in Chemistry & Materials. The portfolio covers 52 examiners and 27 art units, showing substantial examiner breadth with a more concentrated distribution of technical assignments.
LAN, YAN is the busiest examiner, with 2 pending matters. The limited concentration supports an art-unit and issue-based management structure rather than reliance on one examiner relationship. Counsel should track examiner-specific treatment within each art-unit group, especially where related technologies may receive different handling. A shared portfolio record can support consistent claim positions, but each response still requires attention to the particular prosecution history and assigned examiner.
Based on the USPTO statutory response window for each pending office action. 15 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. 15 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 + other | 1 (2%) |
| §103 only | 25 (49%) |
| §102 only | 3 (6%) |
| §112 only | 1 (2%) |
| Double-patenting + other | 3 (6%) |
| Multi-statute (no §101) | 18 (35%) |
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 |
|---|---|---|---|
| LAN, YAN | 2 | 63.1% | +22.0% |
| SERGENT, RABON A | 2 | 55.1% | +24.1% |
| MCCLENDON, SANZA L | 2 | 80.4% | +10.7% |
| LISTVOYB, GREGORY | 2 | 66.9% | +29.4% |
| WHITESELL, STEVEN H | 1 | 82.0% | +12.9% |
| SAN MARTIN, EDGARDO | 1 | 76.0% | +6.6% |
| MILLER, BETHANY MACKENZIE | 1 | 55.1% | +49.9% |
| OH, TAYLOR V | 1 | 81.3% | +15.3% |
| RUMMEL, IAN A | 1 | 56.8% | +18.4% |
| AHMED, SHEEBA | 1 | 80.6% | +14.5% |
Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18262753 | MONOMER COMPOSITION, CURABLE COMPOSITION, MOLDED BODY AND METHOD FOR PRODUCING MONOMER COMPOSITION | MCCLENDON, SANZA L | 35d |
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 |
|---|---|---|---|
| 17913570 | LITHIUM SECONDARY BATTERY | JACOBSON, SARAH JORDAN | 161d overdue |
| 18273727 | RESIN COMPOSITION AND MOLDED ARTICLE | HEINCER, LIAM J | 16d overdue |
| 18730850 | NON-ORIENTED FILM, LAMINATED BODY, AND PACKAGE | VAN SELL, NATHAN L | 26d |
| 18708810 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM | TRA, TUYEN Q | 28d |
| 19106760 | FOREIGN MATTER REMOVING DEVICE, PELLICLE PRODUCING DEVICE, PELLICLE FILM PRODUCING METHOD, AND PELLICLE | WHITESELL, STEVEN H | — |
| 18850267 | ASCORBIC ACID DERIVATIVE OR SALT THEREOF, ADDITIVE FOR POLYMERIZATION INITIATION, POLYMERIZATION INITIATOR, CURABLE COMPOSITION PREPARATION KIT, CURABLE COMPOSITION, CURED PRODUCT, AND DENTAL MATERIAL | OH, TAYLOR V | — |
| 18839654 | LAMINATE | AHMED, SHEEBA | — |
| 18729265 | POLYFUNCTIONAL (METH)ACRYLATE THIOESTER COMPOSITION, CURABLE COMPOSITION, CURED PRODUCT, MOLDED BODY, OPTICAL MATERIAL, AND METHOD FOR PRODUCING POLYFUNCTIONAL (METH)ACRYLATE THIOESTER COMPOSITION | BRANCH, CATHERINE 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 |
|---|---|---|---|
| 17995491 | XYLYLENE DIISOCYANATE-CONTAINING CONTAINER, METHOD FOR STORING XYLYLENE DIISOCYANATE, AND METHOD FOR TRANSPORTING XYLYLENE DIISOCYANATE | LAN, YAN | 9d |
| 18245448 | WATER-DISPERSIBLE BLOCKED ISOCYANATE, FIBER-TREATING AGENT, WATER REPELLENT, COATING COMPOSITION, AND ADHESIVE | SERGENT, RABON A | 13d |
| 18262753 | MONOMER COMPOSITION, CURABLE COMPOSITION, MOLDED BODY AND METHOD FOR PRODUCING MONOMER COMPOSITION | MCCLENDON, SANZA L | 35d |
| 19106760 | FOREIGN MATTER REMOVING DEVICE, PELLICLE PRODUCING DEVICE, PELLICLE FILM PRODUCING METHOD, AND PELLICLE | WHITESELL, STEVEN H | — |
| 18862159 | LAMINATE AND METHOD FOR MANUFACTURING LAMINATE | MILLER, BETHANY MACKENZIE | — |
| 18850267 | ASCORBIC ACID DERIVATIVE OR SALT THEREOF, ADDITIVE FOR POLYMERIZATION INITIATION, POLYMERIZATION INITIATOR, CURABLE COMPOSITION PREPARATION KIT, CURABLE COMPOSITION, CURED PRODUCT, AND DENTAL MATERIAL | OH, TAYLOR V | — |
| 18849173 | FIBER-REINFORCED RESIN SHEET AND METHOD FOR MANUFACTURING SAME | RUMMEL, IAN A | — |
| 18839654 | LAMINATE | AHMED, SHEEBA | — |
| Art Unit | Apps |
|---|---|
| 1787 | 7 |
| 1765 | 7 |
| 1767 | 4 |
| 2837 | 3 |
| 2872 | 3 |
| 1763 | 3 |
| 1759 | 2 |
| 1785 | 2 |
| 1782 | 2 |
| 1766 | 2 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19106760 | FOREIGN MATTER REMOVING DEVICE, PELLICLE PRODUCING DEVICE, PELLICLE FILM PRODUCING METHOD, AND PELLICLE | WHITESELL, STEVEN H | 1759 | §102§103 | Non-Final OA | — | Pending | Feb 26, 2025 |
| 18879396 | SOUND INSULATION STRUCTURE AND SOUNDPROOF STRUCTURE | SAN MARTIN, EDGARDO | 2837 | §103 | Non-Final OA | — | Pending | Dec 27, 2024 |
| 18862159 | LAMINATE AND METHOD FOR MANUFACTURING LAMINATE | MILLER, BETHANY MACKENZIE | 1787 | §103 | Non-Final OA | — | Pending | Oct 31, 2024 |
| 18850267 | ASCORBIC ACID DERIVATIVE OR SALT THEREOF, ADDITIVE FOR POLYMERIZATION INITIATION, POLYMERIZATION INITIATOR, CURABLE COMPOSITION PREPARATION KIT, CURABLE COMPOSITION, CURED PRODUCT, AND DENTAL MATERIAL | OH, TAYLOR V | 1625 | §102§103§112 | Non-Final OA | — | Pending | Sep 24, 2024 |
| 18849173 | FIBER-REINFORCED RESIN SHEET AND METHOD FOR MANUFACTURING SAME | RUMMEL, IAN A | 1785 | §103 | Non-Final OA | — | Pending | Sep 20, 2024 |
| 18839654 | LAMINATE | AHMED, SHEEBA | 1787 | §102§103 | Final Rejection | — | Pending | Aug 19, 2024 |
| 18835775 | OPTICAL MEMBER PRODUCTION METHOD AND OPTICAL MEMBER | SIPES, JOHN CURTIS | 2872 | §103 | Non-Final OA | — | Pending | Aug 05, 2024 |
| 18730850 | NON-ORIENTED FILM, LAMINATED BODY, AND PACKAGE | VAN SELL, NATHAN L | 1783 | §103§112 | Non-Final OA | 26d | Pending | Jul 22, 2024 |
| 18729990 | RESIN COMPOSITION, MOLDED BODY, LAMINATE AND LAMINATED TUBE | LAN, YAN | 1782 | §103 | Non-Final OA | — | Pending | Jul 18, 2024 |
| 18729265 | POLYFUNCTIONAL (METH)ACRYLATE THIOESTER COMPOSITION, CURABLE COMPOSITION, CURED PRODUCT, MOLDED BODY, OPTICAL MATERIAL, AND METHOD FOR PRODUCING POLYFUNCTIONAL (METH)ACRYLATE THIOESTER COMPOSITION | BRANCH, CATHERINE S | 1787 | §103§112 | Non-Final OA | — | Pending | Jul 16, 2024 |
| 18728943 | TEMPERATURE CONTROL DEVICE AND METHOD FOR MANUFACTURING TEMPERATURE CONTROL DEVICE | VORTMAN, ANATOLY | 2841 | §102§103 | Non-Final OA | — | Pending | Jul 15, 2024 |
| 18711650 | PREPOLYMER COMPOSITION, POLYURETHANE RESIN, ELASTIC MOLDED ARTICLE, AND PRODUCTION METHOD OF PREPOLYMER COMPOSITION | SERGENT, RABON A | 1765 | §102§103 | Non-Final OA | — | Pending | May 20, 2024 |
| 18708810 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM | TRA, TUYEN Q | 2872 | §102§103 | Non-Final OA | 28d | Pending | May 09, 2024 |
| 18704979 | POLYAMIC ACID VARNISH, POLYIMIDE COMPOSITION, AND ADHESIVE | DESTEFANO, AUDRA JEAN | 1766 | §102 | Non-Final OA | — | Pending | Apr 26, 2024 |
| 18699667 | PHOTOCURABLE COMPOSITION, CURED ARTICLE, LAMINATED BODY, METHOD FOR PRODUCING CURED ARTICLE, AND METHOD FOR PRODUCING LENS | MCCLENDON, SANZA L | 1765 | §102§103§112 | Non-Final OA | — | Pending | Apr 09, 2024 |
| 18688837 | COMPOSITION FOR FORMING FILM FOR SEMICONDUCTOR, LAMINATE, AND SUBSTRATE LAMINATE | NELSON, MICHAEL B | 1787 | §103 | Final Rejection | 28d | Pending | Mar 04, 2024 |
| 18686970 | EPISULFIDE COMPOSITION, POLYMERIZABLE COMPOSITION, CURED PRODUCT, AND OPTICAL MATERIAL | NGUYEN, HA S | 1766 | §102 | Non-Final OA | — | Pending | Feb 27, 2024 |
| 18685418 | HYDROCHLORIC ACID OXIDATION CATALYST AND METHOD FOR PRODUCING CHLORINE | TAYLOR, JORDAN W | 1738 | §103§112 | Non-Final OA | — | Pending | Feb 21, 2024 |
| 18685420 | HYDROCHLORIC ACID OXIDATION CATALYST AND METHOD FOR PRODUCING CHLORINE | RUMP, RICHARD M | 1759 | §103 | Non-Final OA | — | Pending | Feb 21, 2024 |
| 18683298 | ADHESIVE RESIN COMPOSITION AND FILM | STANLEY, JANE L | 1767 | §102§103§112 | Non-Final OA | — | Pending | Feb 13, 2024 |
| 18682240 | METHOD FOR PRODUCING (METH)ACRYLAMIDE COMPOUND | WITHERSPOON, SIKARL A | 1692 | §102§103 | Non-Final OA | — | Pending | Feb 08, 2024 |
| 18681119 | (METH)ACRYLAMIDE COMPOUND, MONOMER COMPOSITION, COMPOSITION FOR DENTAL MATERIAL, AND DENTAL MATERIAL | JONES, KOLTON ED | 1763 | §102 | Non-Final OA | — | Pending | Feb 05, 2024 |
| 18580429 | MINERAL-OIL-RESISTANCE-IMPARTING COATING MATERIAL AND LAMINATE | DICUS, TAMRA | 1787 | §103 | Final Rejection | 21d | Pending | Jan 18, 2024 |
| 18560002 | NON-AQUEOUS ELECTROLYTIC SOLUTION FOR BATTERY, LITHIUM SECONDARY BATTERY PRECURSOR, METHOD FOR PRODUCING LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY | KERNS, KEVIN P | 1735 | §102§112 | Non-Final OA | — | Pending | Nov 09, 2023 |
| 18553905 | POLYMER PIEZOELECTRIC FILM ELEMENT, POWER STORAGE DEVICE USING SAME, AND LOAD DETECTION DEVICE | PHAM, EMILY P | 2837 | §102§103 | Non-Final OA | — | Pending | Oct 04, 2023 |
| 18284468 | THERMOPLASTIC ELASTOMER COMPOSITION AND APPLICATION THEREOF | KOLB, KATARZYNA I | 1767 | §102§103DP | Final Rejection | — | Pending | Sep 27, 2023 |
| 18551933 | PIEZOELECTRIC BASE MATERIAL, SENSOR, ACTUATOR, AND BIOMETRIC INFORMATION ACQUISITION DEVICE | SAN MARTIN, JAYDI A | 2837 | §102DP | Non-Final OA | — | Pending | Sep 22, 2023 |
| 18281769 | RESIN COMPOSITION, FILM COMPRISING RESIN COMPOSITION, AND USE THEREOF | LAWLER, JOHN VINCENT | 1787 | §103 | Final Rejection | — | Pending | Sep 12, 2023 |
| 18280201 | THERMOPLASTIC ELASTOMER COMPOSITION | NERANGIS, VICKEY M | 1763 | §103 | Final Rejection | — | Pending | Sep 01, 2023 |
| 18277203 | RESIN COMPOSITION AND USE THEREOF | KELLEY, HEIDI RIVIERE | 1765 | §103 | Final Rejection | — | Pending | Aug 14, 2023 |
| 18263686 | RESIN COMPOSITION AND MULTILAYER BODY HAVING LAYER COMPOSED OF THE RESIN COMPOSITION | KRUER, KEVIN R | 1787 | §103 | Final Rejection | — | Pending | Jul 31, 2023 |
| 18262753 | MONOMER COMPOSITION, CURABLE COMPOSITION, MOLDED BODY AND METHOD FOR PRODUCING MONOMER COMPOSITION | MCCLENDON, SANZA L | 1765 | §103 | Non-Final OA | 35d | Pending | Jul 25, 2023 |
| 18262744 | METHOD FOR MANUFACTURING AN OPTICAL MATERIAL AND COMPOSITION USED IN THIS METHOD | AHVAZI, BIJAN | 1763 | §103 | Non-Final OA | — | Pending | Jul 25, 2023 |
| 18273727 | RESIN COMPOSITION AND MOLDED ARTICLE | HEINCER, LIAM J | 1767 | §102§103 | Final Rejection | 16d overdue | Pending | Jul 21, 2023 |
| 18266951 | CULTURE MATERIAL AND USE THEREOF | HUMPHRIES, NICHOLAS ADAM | 1631 | §102DP | Final Rejection | 22d overdue | Pending | Jun 13, 2023 |
| 18035686 | RESIN COMPOSITION, ADHESIVE, MULTILAYER BODY, SURFACE PROTECTION FILM, METHOD FOR PRODUCING SURFACE PROTECTION FILM, AND METHOD FOR PROTECTING SURFACE | KAUCHER, MARK S | 1764 | §103 | Final Rejection | 23d | Pending | May 05, 2023 |
| 18245448 | WATER-DISPERSIBLE BLOCKED ISOCYANATE, FIBER-TREATING AGENT, WATER REPELLENT, COATING COMPOSITION, AND ADHESIVE | SERGENT, RABON A | 1765 | §103 | Final Rejection | 13d | Pending | Mar 15, 2023 |
| 18043690 | COMPOSITION, MULTILAYER BODY AND METHOD FOR PRODUCING MULTILAYER BODY | SLOAN, LILY KAYOKO | 1762 | §103 | Final Rejection | — | Pending | Mar 01, 2023 |
| 18022470 | ESTER COMPOUND | STOCKTON, LAURA LYNNE | 1626 | §102§112 | Non-Final OA | — | Pending | Feb 21, 2023 |
| 18007053 | OPTICAL STRUCTURE AND HEAD-UP DISPLAY | PARBADIA, BALRAM T | 2872 | §103 | Final Rejection | 22d | Pending | Jan 27, 2023 |
| 18006737 | INSOLATION CORRECTION METHOD, INSOLATION CORRECTION DEVICE, RECORDING MEDIUM, MODEL, MODEL GENERATING METHOD, AND MODEL PROVIDING METHOD | MOLL, NITHYA JANAKIRAMAN | 2189 | §101§103§112 | Final Rejection | — | Pending | Jan 25, 2023 |
| 18000956 | POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL AND PHOTOCHROMIC LENS | JARRELL, NOBLE E | 1699 | §112 | Final Rejection | — | Pending | Dec 07, 2022 |
| 18053785 | mecA GENE AMPLIFICATION PRIMER PAIR, mecA GENE DETECTION KIT AND mecA GENE DETECTION METHOD | OYEYEMI, OLAYINKA A | 1681 | §103 | Final Rejection | 56d overdue | Pending | Nov 09, 2022 |
| 17995491 | XYLYLENE DIISOCYANATE-CONTAINING CONTAINER, METHOD FOR STORING XYLYLENE DIISOCYANATE, AND METHOD FOR TRANSPORTING XYLYLENE DIISOCYANATE | LAN, YAN | 1782 | §103 | Non-Final OA | 9d | Pending | Oct 05, 2022 |
| 17913570 | LITHIUM SECONDARY BATTERY | JACOBSON, SARAH JORDAN | 1785 | §102§103 | Final Rejection | 161d overdue | Pending | Sep 22, 2022 |
| 17792735 | PELLICLE FILM, PELLICLE, ORIGINAL PLATE FOR EXPOSURE, EXPOSURE DEVICE, METHOD OF PRODUCING PELLICLE, AND METHOD OF PRODUCING SEMICONDUCTOR DEVICE | ANGEBRANNDT, MARTIN J | 1737 | §103 | Final Rejection | — | Pending | Jul 14, 2022 |
| 17762032 | MATERIAL FOR 3D PRINTING, 3D PRINTED OBJECT, AND METHOD OF MANUFACTURING 3D PRINTED OBJECT | LISTVOYB, GREGORY | 1765 | §103§112 | Non-Final OA | — | Pending | Mar 18, 2022 |
| 17629503 | URETHANE ALLYL COMPOUND, MONOMER COMPOSITION, MOLDED BODY, COMPOSITION FOR DENTAL MATERIAL, AND DENTAL MATERIAL | DAVIDSON IV, CULLEN LEE GARRETT | 1767 | §103 | Final Rejection | 7d | Pending | Jan 24, 2022 |
| 17439727 | THERMOPLASTIC ELASTOMER COMPOSITION AND MOLDED ARTICLE OF THE SAME | LISTVOYB, GREGORY | 1765 | §103 | Non-Final OA | — | Pending | Sep 15, 2021 |
| 17040783 | BACTERIAL IDENTIFICATION METHOD USING RNA OF SAMPLE BACTERIA, AND KIT THEREFOR | RAVINDRA, KRISHNA NUGGEHALLI | 1636 | §103 | Non-Final OA | 67d overdue | Pending | Sep 23, 2020 |
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Start Free TrialMitsui Chemicals Inc. has 51 pending office actions as of October 2026, spread across 26 art units and 47 examiners.
Yan Lan has the most, with 2 of Mitsui Chemicals Inc.'s pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
