Prosecution Insights
Prosecution Insights
Technology area: Chemistry & Materials
55 pending office actions • 16 art units • 52 examiners • 0 of 55 (0%) have an AI response strategy ready • 33 patents granted in the last 365 days
Mitsui Chemicals Inc. maintains a large portfolio with 57 pending office actions, primarily in the Chemistry & Materials technology area. These actions are distributed across 54 distinct examiners, reflecting a highly fragmented prosecution landscape. The involvement of 18 distinct art units further underscores the broad technical diversity of the company's chemical and material science innovations. This complexity requires a sophisticated management approach to ensure consistency across the 57 pending matters, as the examiners will each bring their own interpretation to the cases.
LAN, YAN is the busiest examiner for the portfolio, currently managing 2 pending office actions. Despite this, the vast majority of the 57 pending actions are handled by individual examiners who each oversee only one case. This high ratio of 54 distinct examiners to the total workload suggests that the company must navigate a wide variety of individual styles. Practitioners should be prepared for a diverse range of feedback, as the 18 distinct art units will each have their own specific procedural and substantive standards.
The 18 distinct art units indicate that while the technology area is centered on chemistry, the specific applications are spread across many different specialized divisions. This distribution means that the 57 pending office actions are subject to the oversight of 18 different supervisory patent examiners. To manage this effectively, the company should monitor trends across the 18 distinct art units to identify any common themes or challenges. With 57 pending actions, the ability to synthesize information from 54 distinct examiners is essential for maintaining a coherent global patent strategy.
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 | 30 (55%) |
| §102 only | 3 (5%) |
| Double-patenting + other | 3 (5%) |
| Multi-statute (no §101) | 18 (33%) |
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% | +21.9% |
| AHVAZI, BIJAN | 2 | 63.2% | +47.3% |
| LISTVOYB, GREGORY | 2 | 66.9% | +29.6% |
| MILLER, BETHANY MACKENZIE | 1 | 55.5% | +50.9% |
| OH, TAYLOR V | 1 | 81.2% | +15.3% |
| RUMMEL, IAN A | 1 | 56.6% | +18.4% |
| NGUYEN, LILLIAN T | 1 | 84.0% | +14.0% |
| AHMED, SHEEBA | 1 | 80.7% | +14.4% |
| SIPES, JOHN CURTIS | 1 | 77.3% | +19.4% |
| VAN SELL, NATHAN L | 1 | 54.5% | +24.8% |
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 |
|---|---|---|---|
| 18840002 | SHOCK-ABSORBING MATERIAL AND METHOD FOR MANUFACTURING SAME | NGUYEN, LILLIAN T | — |
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 |
| 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 | — |
| 18728943 | TEMPERATURE CONTROL DEVICE AND METHOD FOR MANUFACTURING TEMPERATURE CONTROL DEVICE | VORTMAN, ANATOLY | — |
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 |
|---|---|---|---|
| 17593857 | METHOD OF PRODUCING OPTICAL MATERIAL, AND POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL | AHVAZI, BIJAN | 17d overdue |
| 17995491 | XYLYLENE DIISOCYANATE-CONTAINING CONTAINER, METHOD FOR STORING XYLYLENE DIISOCYANATE, AND METHOD FOR TRANSPORTING XYLYLENE DIISOCYANATE | LAN, YAN | 9d |
| 18730850 | NON-ORIENTED FILM, LAMINATED BODY, AND PACKAGE | VAN SELL, NATHAN L | 26d |
| 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 | — |
| 18840002 | SHOCK-ABSORBING MATERIAL AND METHOD FOR MANUFACTURING SAME | NGUYEN, LILLIAN T | — |
| 18839654 | LAMINATE | AHMED, SHEEBA | — |
| Art Unit | Apps |
|---|---|
| 1787 | 7 |
| 1763 | 5 |
| 1764 | 4 |
| 1765 | 4 |
| 2872 | 3 |
| 1767 | 3 |
| 1766 | 3 |
| 1783 | 1 |
| 1631 | 1 |
| 1626 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 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 | — | §102§103§112 | Non-Final OA | — | Pending | Sep 24, 2024 |
| 18849173 | FIBER-REINFORCED RESIN SHEET AND METHOD FOR MANUFACTURING SAME | RUMMEL, IAN A | — | §103 | Non-Final OA | — | Pending | Sep 20, 2024 |
| 18840002 | SHOCK-ABSORBING MATERIAL AND METHOD FOR MANUFACTURING SAME | NGUYEN, LILLIAN T | — | §103 | Non-Final OA | — | Pending | Aug 20, 2024 |
| 18839654 | LAMINATE | AHMED, SHEEBA | — | §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 | — | §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 | — | §102§103 | Non-Final OA | — | Pending | Jul 15, 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 | — | §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 | — | §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 |
| 18685418 | HYDROCHLORIC ACID OXIDATION CATALYST AND METHOD FOR PRODUCING CHLORINE | TAYLOR, JORDAN W | — | §103§112 | Non-Final OA | — | Pending | Feb 21, 2024 |
| 18685420 | HYDROCHLORIC ACID OXIDATION CATALYST AND METHOD FOR PRODUCING CHLORINE | RUMP, RICHARD M | — | §103 | Non-Final OA | — | Pending | Feb 21, 2024 |
| 18683298 | ADHESIVE RESIN COMPOSITION AND FILM | STANLEY, JANE L | — | §102§103§112 | Non-Final OA | — | Pending | Feb 13, 2024 |
| 18682240 | METHOD FOR PRODUCING (METH)ACRYLAMIDE COMPOUND | WITHERSPOON, SIKARL A | — | §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 | — | §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 |
| 18566204 | POLYISOCYANATE COMPOSITION, POLYMERIZABLE COMPOSITION, RESIN, MOLDED ARTICLE, OPTICAL ELEMENT, AND LENS | STONEHOCKER, VIRGINIA LEE | — | §103 | Non-Final OA | — | Pending | Dec 01, 2023 |
| 18560002 | NON-AQUEOUS ELECTROLYTIC SOLUTION FOR BATTERY, LITHIUM SECONDARY BATTERY PRECURSOR, METHOD FOR PRODUCING LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY | KERNS, KEVIN P | — | §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 | — | §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 | — | §102DP | Non-Final OA | — | Pending | Sep 22, 2023 |
| 18282482 | GRAFT-MODIFIED ETHYLENE-BASED POLYMER, POLYAMIDE COMPOSITION CONTAINING GRAFT-MODIFIED ETHYLENE-BASED POLYMER AND APPLICATION THEREOF | RODD, CHRISTOPHER M | 1766 | §103 | Non-Final OA | — | Pending | Sep 15, 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 |
| 18279864 | 1-BUTENE/ETHYLENE COPOLYMER, 1-BUTENE-BASED POLYMER COMPOSITION COMPRISING 1-BUTENE/ETHYLENE COPOLYMER AND PROPYLENE-BASED POLYMER, 1-BUTENE-BASED POLYMER COMPOSITION COMPRISING 1-BUTENE/ETHYLENE COPOLYMER, PROPYLENE-BASED POLYMER AND ETHYLENE-BASED POLYMER, AND USES THEREOF | FANG, SHANE | 1766 | §102 | Non-Final OA | — | Pending | Aug 31, 2023 |
| 18547338 | POLYAMIDE RESIN COMPOSITION AND POLYAMIDE MOLDED ARTICLE | LEE, DORIS L | 1764 | §103 | Non-Final OA | — | Pending | Aug 22, 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 |
| 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 |
| 18272518 | CURABLE POLYURETHANE RESIN COMPOSITION, CURED OBJECT, AND LAYERED PRODUCT | REDDY, KARUNA P | 1764 | §102§103§112 | Final Rejection | — | Pending | Jul 14, 2023 |
| 18268074 | SOLID TITANIUM CATALYST COMPONENT, OLEFIN POLYMERIZATION CATALYST, OLEFIN POLYMERIZATION METHOD, AND PROPYLENE POLYMER | BROOKS, KREGG T | 1764 | §103Other | Final Rejection | — | Pending | Jun 16, 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 |
| 18029888 | ORGANOSILICON COMPOUND GRAFT COPOLYMER AND RUBBER COMPOSITION FOR TIRE INCLUDING THE COPOLYMER | HALL, DEVE V. | 1763 | §103 | Non-Final OA | — | Pending | Mar 31, 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 |
| 18022470 | ESTER COMPOUND | STOCKTON, LAURA LYNNE | 1626 | §102§112 | Non-Final OA | — | Pending | Feb 21, 2023 |
| 18042096 | XYLYLENE DIISOCYANATE COMPOSITION, POLYMERIZABLE COMPOSITION, RESIN, MOLDED ARTICLE, OPTICAL ELEMENT, AND LENS | HESTER, HOLLEY GRACE | 1766 | §102§103 | Final Rejection | — | Pending | Feb 17, 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 |
| 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 | Final Rejection | 9d | Pending | Oct 05, 2022 |
| 17913570 | LITHIUM SECONDARY BATTERY | JACOBSON, SARAH JORDAN | 1785 | §102§103 | Final Rejection | 161d overdue | Pending | Sep 22, 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 |
| 17614127 | PROPYLENE-ETHYLENE-alpha-OLEFIN COPOLYMER, POLYPROPYLENE COMPOSITION, AND USE THEREFOR | DEL SOLE, JOSEPH STEVEN | 1763 | §103 | Non-Final OA | — | Pending | Nov 24, 2021 |
| 17593857 | METHOD OF PRODUCING OPTICAL MATERIAL, AND POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL | AHVAZI, BIJAN | 1763 | §103 | Non-Final OA | 17d overdue | Pending | Sep 27, 2021 |
| 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 |
| 16964240 | NONAQUEOUS ELECTROLYTE SOLUTION FOR BATTERIES, AND LITHIUM SECONDARY BATTERY | WALLS, CYNTHIA KYUNG SOO | 1751 | §103 | Non-Final OA | — | Pending | Jul 23, 2020 |
| 16769170 | POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL AND MOLDED PRODUCT | SHUKLA, KRUPA | 1787 | §103 | Non-Final OA | — | Pending | Jun 02, 2020 |
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