Prosecution Insights
Last updated: October 01, 2026

Kuraray Co., Ltd.

Technology area: Chemistry & Materials

73 pending office actions • 32 art units • 65 examiners • 0 of 73 (0%) have an AI response strategy ready • 90 patents granted in the last 365 days

Analysis

Kuraray Co., Ltd. currently has 70 pending office actions within the Chemistry & Materials technology area. These matters are distributed across 31 distinct art units, which indicates the variety of technical groups reviewing the company's applications. Prosecution involves 63 distinct examiners, meaning that the company must manage a high number of individual relationships at the USPTO. The ratio of 70 pending actions to 63 examiners suggests that most examiners are responsible for a single case.

Peter Y. Choi is the busiest examiner for the portfolio, currently handling 2 pending office actions. This concentration is low relative to the total of 70 pending actions. With 31 distinct art units involved, the company's legal team must address the specific procedural requirements of many different technical branches. The presence of 63 distinct examiners requires a strategy that accounts for a wide range of individual examination styles. This distribution across 31 art units and 63 examiners ensures that the portfolio's progress is not dependent on any single official or unit.

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

Portfolio Summary

73
Total Pending OAs
38
Non-Final OAs
34
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 28 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

13
Overdue
2
Due this week
8
Due this month
3
Due in next 60 days
2
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. 28 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (13)Due ≤ 7 days (2)Due ≤ 30 days (8)Due ≤ 60 days (3)Due later (2)

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.

34
Hard (47%)
37
Medium (51%)
2
Easy (3%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other1 (1%)
§103 only33 (45%)
§102 only2 (3%)
§112 only2 (3%)
Double-patenting + other2 (3%)
Multi-statute (no §101)33 (45%)

Industry Mix

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

54
Life Sciences
74% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
1
Semiconductors
1% of docket
5
Mechanical / Eng
7% of docket
13
Business / Other
18% 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.

730 h
Manual time on pending OAs
146 h
Time saved (low, 20%)
255 h
Time saved (mid, 35%)
6.4 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
CHOI, PETER Y 2 20.6% +33.0%
DARLING, DEVIN MITCHELL 2 61.5% +25.8%
REDDY, KARUNA P 2 42.5% +10.4%
KOLB, KATARZYNA I 2 45.2% +15.9%
JONES, KOLTON ED 2 — —
LENIHAN, JEFFREY S 2 73.3% +16.8%
FEELY, MICHAEL J 2 75.2% +42.1%
PEPITONE, MICHAEL F 2 74.4% +21.9%
HUANG, GRACE 1 56.8% +55.2%
KHAN, TAHSEEN 1 61.7% +20.5%

Hard Cases (34)

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
17795968 CURING COMPOSITION AND CURED OBJECT USING SAME REDDY, KARUNA P 163d overdue
18269401 DENTAL COMPOSITION BUTCHER, ROBERT T 44d overdue
18033950 CURABLE COMPOSITION AND SEALANT CAI, WENWEN 32d overdue
18122980 FLEXIBLE GEOMEMBRANE CHOI, PETER Y 25d overdue
18279699 DESTRUCTION PREDICTION PROGRAM AND DESTRUCTION PREDICTION METHOD QUIGLEY, KYLE ROBERT 6d
17788936 ENERGY RAY-CURABLE COATING MATERIAL FOR THREE-DIMENSIONAL SHAPED ARTICLES, ENERGY RAY-CURABLE MATERIAL KIT FOR THREE-DIMENSIONAL SHAPING INCLUDING SAME, THREE-DIMENSIONAL SHAPED ARTICLE USING SAME, AND METHOD OF PRODUCTION THEREOF PEPITONE, MICHAEL F 14d
18264529 POLYESTER POLYOL, URETHANE PREPOLYMER AND POLYURETHANE RIOJA, MELISSA A 22d
17921650 ADDITIVE FOR POSITIVE ELECTRODE OF ELECTROCHEMICAL DEVICE, COMPOSITION FOR POSITIVE ELECTRODE OF ELECTROCHEMICAL DEVICE, POSITIVE ELECTRODE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE INCLUDING SAME JACOBSON, SARAH JORDAN 34d

Interview Candidates (16)

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
17795968 CURING COMPOSITION AND CURED OBJECT USING SAME REDDY, KARUNA P 163d overdue
17928040 Resin Composition, and Aqueous Coating Fluid and Multilayer Structure Each Comprising Same DARLING, DEVIN MITCHELL 81d overdue
18122980 FLEXIBLE GEOMEMBRANE CHOI, PETER Y 25d overdue
17788936 ENERGY RAY-CURABLE COATING MATERIAL FOR THREE-DIMENSIONAL SHAPED ARTICLES, ENERGY RAY-CURABLE MATERIAL KIT FOR THREE-DIMENSIONAL SHAPING INCLUDING SAME, THREE-DIMENSIONAL SHAPED ARTICLE USING SAME, AND METHOD OF PRODUCTION THEREOF PEPITONE, MICHAEL F 14d
18003771 WATER-SOLUBLE FILM AND PACKAGING KOLB, KATARZYNA I 16d
18037455 POLYMER, FLAME-RETARDANT COMPOSITION, AND METHOD FOR PRODUCING POLYMER KOLB, KATARZYNA I 63d
18878399 DOUBLE-ROPE STRUCTURE HUANG, GRACE —
18878936 NAPPED ARTIFICIAL LEATHER AND MANUFACTURING METHOD THEREFOR CHOI, PETER Y —

Top Art Units

Art UnitApps
1764 9
1767 7
1766 5
1742 3
1784 3
1789 2
1763 2
1786 2
1785 2
1781 2

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18878399 DOUBLE-ROPE STRUCTURE HUANG, GRACE 3732 §103 Final Rejection — Pending Oct 14, 2025
18878936 NAPPED ARTIFICIAL LEATHER AND MANUFACTURING METHOD THEREFOR CHOI, PETER Y — §102§103§112 Non-Final OA — Pending Dec 26, 2024
18873714 MULTILAYER FILM AND PACKAGING MATERIAL USING SAME KHAN, TAHSEEN — §103 Non-Final OA — Pending Dec 10, 2024
18867216 RESIN COMPOSITION, CURED PRODUCT, LAMINATE, AND METHOD FOR PRODUCING LAMINATE BRANCH, CATHERINE S 1745 §102§112DP Non-Final OA — Pending Nov 19, 2024
18950538 LIQUID CRYSTAL POLYESTER MULTI-FILAMENT AND METHOD FOR MANUFACTURING SAME WOLLSCHLAGER, JEFFREY MICHAEL 1742 §103 Final Rejection — Pending Nov 18, 2024
18695624 AMBULATORY PEST TRAPPING DEVICE ALGHAILANI, SHADA MOHAMED 3643 §103 Non-Final OA 22d Pending Nov 12, 2024
18832573 METHOD FOR MANUFACTURING RESIN SHEET BY USING 3D PRINTER, AND POLISHING PAD HAVING POLISHING LAYER OBTAINED THEREBY FUNK, ERICA HARTSELL 1741 §102§103 Final Rejection — Pending Jul 24, 2024
18726591 COMPOSITE MATERIAL AND METHOD OF MANUFACTURING THE SAME PIERCE, JEREMY R 1789 §102§103 Non-Final OA — Pending Jul 03, 2024
18722546 MULTI-LAYER FILM, AND MULTI-LAYER STRUCTURE USING SAME VARGOT, MATHIEU D 1742 §103§112 Non-Final OA — Pending Jun 20, 2024
18710045 AQUEOUS ADHESIVE, REINFORCEMENT FIBERS USING SAME, AND ELASTOMER PRODUCT USING REINFORCEMENT FIBERS KESSLER JR, THOMAS JOSEPH — §103 Non-Final OA — Pending May 14, 2024
18700549 POLYAMIDE BLOCK COPOLYMER GULAKOWSKI, RANDY P — §102§103Other Non-Final OA — Pending Apr 11, 2024
18699015 LIQUID CRYSTAL POLYESTER FIBERS AND METHOD FOR PRODUCING SAME TENTONI, LEO B 1742 §102§103DP Non-Final OA 63d Pending Apr 05, 2024
18693927 MULTILAYER STRUCTURE WITH AN IMPROVED HYDROGEN BARRIER MIGGINS, MICHAEL C — §102§103 Non-Final OA — Pending Mar 20, 2024
18691020 CEMENT COMPOSITION, FLUID LOSS CONTROL AGENT, AND FLUID LOSS CONTROL METHOD FOR CEMENT GREEN, ANTHONY J — §103§112 Non-Final OA — Pending Mar 11, 2024
18292423 POLISHING PAD SHUM, KENT N 3723 §103 Final Rejection 15d overdue Pending Jan 26, 2024
18544082 FIBER STRUCTURE, CROSSLINKED MOLDED BODY, AND METHOD FOR MANUFACTURING CROSSLINKED MOLDED BODY IMANI, ELIZABETH MARY COLE 1789 §112 Final Rejection 2d overdue Pending Dec 18, 2023
18567853 ADHESIVE COMPOSITION BOYLE, ROBERT C — §103§112 Non-Final OA — Pending Dec 07, 2023
18288068 RESIN COMPOSITION, FOAMABLE COMPOSITION, AND CROSSLINKED FOAM BODY DARLING, DEVIN MITCHELL 1764 §103§112 Non-Final OA — Pending Oct 24, 2023
18286374 METHOD FOR PRODUCING PRODUCT OF ACETALIZATION OF ETHYLENE/VINYL ALCOHOL COPOLYMER RUMMEL, JULIA L 1784 §103 Final Rejection 8d Pending Oct 11, 2023
18282369 COMPOUNDING MATERIAL FOR RUBBER KNEADING AND SEALED PACKAGE USING COMPOUNDING MATERIAL FOR RUBBER KNEADING, METHOD FOR PRODUCING COMPOUNDING MATERIAL FOR RUBBER KNEADING AND METHOD FOR PRODUCING RUBBER COMPOSITION RODD, CHRISTOPHER M 1766 §103§112 Final Rejection — Pending Sep 15, 2023
18279970 CARBON DIOXIDE ADSORPTION BATTERY AND CHARGE/DISCHARGE DEVICE ELLIOTT, QUINTIN DALE 1724 §103 Final Rejection — Pending Sep 01, 2023
18279699 DESTRUCTION PREDICTION PROGRAM AND DESTRUCTION PREDICTION METHOD QUIGLEY, KYLE ROBERT 2857 §101§103§112 Final Rejection 6d Pending Aug 31, 2023
18548377 METHOD FOR PRODUCING POLYMER, COMPOSITION FOR RADICAL POLYMERIZATION, AND RADICAL POLYMERIZATION INHIBITOR REDDY, KARUNA P 1764 §102 Non-Final OA — Pending Aug 30, 2023
18276753 HYDROGENATED POLYMER COMPOSITION CONTAINING HYDROGENATED CONJUGATED DIENE MODIFIED POLYMER HAVING BORON-CONTAINING FUNCTIONAL GROUP AND METHOD FOR PRODUCING SAME HEINCER, LIAM J 1767 §103 Non-Final OA 2d overdue Pending Aug 10, 2023
18264529 POLYESTER POLYOL, URETHANE PREPOLYMER AND POLYURETHANE RIOJA, MELISSA A 1764 §103§112 Final Rejection 22d Pending Aug 07, 2023
18275454 POSITIVE ELECTRODE ADDITIVE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL COMPOSITION FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY CONTAINING SAID ADDITIVE, POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY PROVIDED WITH SAME COLTON, JENNA XIANXIAN 1782 §103 Non-Final OA 21d Pending Aug 02, 2023
18275165 Porous Pellets of Ethylene-Vinyl Alcohol Copolymer, and Method for Producing Same BOYLE, KARA BRADY 1766 §102§112 Final Rejection 56d Pending Jul 31, 2023
18274623 RESIN COMPOSITION AND MOLDED BODY KARST, DAVID THOMAS 1767 §103Other Final Rejection 12d Pending Jul 27, 2023
18269094 HYDROGENATED PRODUCT OF BLOCK COPOLYMER, RESIN COMPOSITION, AND METHOD FOR PRODUCING HYDROGENATED PRODUCT OF BLOCK COPOLYMER KRYLOVA, IRINA 1764 §102§103 Final Rejection — Pending Jun 22, 2023
18203797 CURRENT COLLECTOR, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE BATTERY HAMMOND, KRISHNA R 1725 §103 Non-Final OA — Pending May 31, 2023
18037455 POLYMER, FLAME-RETARDANT COMPOSITION, AND METHOD FOR PRODUCING POLYMER KOLB, KATARZYNA I 1767 §103 Non-Final OA 63d Pending May 17, 2023
18251593 DISPERSANT FOR SUSPENSION POLYMERIZATION AND METHOD FOR PRODUCING VINYL POLYMER HUHN, RICHARD A 1764 §102 Non-Final OA — Pending May 03, 2023
18033950 CURABLE COMPOSITION AND SEALANT CAI, WENWEN 1763 §102§103§112 Final Rejection 32d overdue Pending Apr 26, 2023
18033920 RESIN COMPOSITION, MOLDED BODY AND TUBE FOSS, DAVID ROGER 1764 §103§112 Final Rejection 43d Pending Apr 26, 2023
18033974 IMMUNOISOLATION DEVICE BEISNER, WILLIAM H 1799 §102§103§112 Final Rejection — Pending Apr 26, 2023
18122980 FLEXIBLE GEOMEMBRANE CHOI, PETER Y 1786 §103§112 Non-Final OA 25d overdue Pending Mar 17, 2023
18026602 ACTIVATED CARBON AND WATER TREATMENT METHOD USING SAID ACTIVATED CARBON PEO, KARA M 1777 §103 Final Rejection 11d overdue Pending Mar 16, 2023
18023512 POLYMER COMPOSITION INCLUDING MODIFIED POLYMERS HAVING BORON-CONTAINING FUNCTIONAL GROUP AND METHOD FOR PRODUCTION THEREOF FISCHER, JUSTIN R 1749 §103 Final Rejection 42d overdue Pending Feb 27, 2023
18022783 REINFORCING FIBERS AND MOLDED BODY USING SAME ILLING, CAITLIN NORINE 1767 §103 Non-Final OA — Pending Feb 23, 2023
18003785 WATER-SOLUBLE FILM AND PACKAGING EGWIM, KELECHI CHIDI 1762 §102§103 Final Rejection — Pending Dec 29, 2022
18003771 WATER-SOLUBLE FILM AND PACKAGING KOLB, KATARZYNA I 1767 §103Other Final Rejection 16d Pending Dec 29, 2022
18013282 CURED FIBER REINFORCED COMPOSITE USELDING, JOHN E 1763 §103 Non-Final OA — Pending Dec 28, 2022
18010600 BINDER SUITABLE FOR ELECTRICITY STORAGE DEVICE ELECTRODES, BINDER SOLUTION FOR ELECTRICITY STORAGE DEVICE ELECTRODES, ELECTRICITY STORAGE DEVICE ELECTRODE SLURRY, ELECTRICITY STORAGE DEVICE ELECTRODE, AND ELECTRICITY STORAGE DEVICE BLACKWELL-RUDASIL, RYAN KENZIE 1722 §103 Non-Final OA — Pending Dec 15, 2022
17928040 Resin Composition, and Aqueous Coating Fluid and Multilayer Structure Each Comprising Same DARLING, DEVIN MITCHELL 1764 §103 Final Rejection 81d overdue Pending Nov 28, 2022
17921650 ADDITIVE FOR POSITIVE ELECTRODE OF ELECTROCHEMICAL DEVICE, COMPOSITION FOR POSITIVE ELECTRODE OF ELECTROCHEMICAL DEVICE, POSITIVE ELECTRODE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE INCLUDING SAME JACOBSON, SARAH JORDAN 1785 §102§103§112 Final Rejection 34d Pending Oct 27, 2022
17795968 CURING COMPOSITION AND CURED OBJECT USING SAME REDDY, KARUNA P 1764 §103§112 Final Rejection 163d overdue Pending Jul 28, 2022
17788764 SEPARATOR FOR ELECTROCHEMICAL ELEMENTS GRANNUM, VERITA EUDORA EBUN 1721 §103 Non-Final OA 13d Pending Jun 24, 2022
17630251 Purging Agent and Method for Purging Molding Machine Using Same JOHNSTON, BRIEANN R 1766 §103 Non-Final OA 52d overdue Pending Jan 26, 2022
17408676 CONTINUOUS LONG-FIBER NON-WOVEN FABRIC, LAYERED BODY, AND COMPOSITE MATERIAL AND PRODUCTION METHOD THEREFOR TATESURE, VINCENT 1786 §103 Final Rejection 6d Pending Aug 23, 2021
18724606 ALUMINA PRE-SINTERED BODY FOR DENTAL USE THAT TRANSFORMS INTO HIGHLY TRANSLUCENT ALUMINA SINTERED BODY FERGUSON, LAWRENCE D 1781 §103 Final Rejection — Pending Jun 27, 2024
18724447 DENTAL CURABLE COMPOSITION AND DENTAL PROSTHESIS COMPRISING BASE MATERIAL AND RESIN LAYER MCDONOUGH, JAMES E — §103 Non-Final OA — Pending Jun 26, 2024
18723944 OXIDE-CERAMIC MOLDED BODY MANUFACTURING METHOD FRANKLIN, JODI COHEN — §103 Non-Final OA — Pending Jun 25, 2024
18723864 OXIDE CERAMIC PRE-SINTERED BODY FOR DENTAL USE WITH GOOD POLISHABILITY, AND METHOD FOR PRODUCING SAME GUGLIOTTA, NICOLE T 1781 §103§112 Non-Final OA — Pending Jun 25, 2024
18698839 PASTE-FORM TWO-PACK TYPE DENTAL CURABLE COMPOSITION JONES, KOLTON ED — §102§103§112 Non-Final OA — Pending Apr 05, 2024
18698869 SEPARATE-PACK TYPE DENTAL CURABLE COMPOSITION WASHVILLE, JEFFREY D — §103 Non-Final OA — Pending Apr 05, 2024
18573666 DENTAL ADHESIVE KIT JONES, KOLTON ED — §103§112 Non-Final OA — Pending Dec 22, 2023
18288411 CUTTING MACHINING DEVICE, HOLDING DEVICE, AND MACHINING METHOD SNYDER, ALAN W 3722 §102§103 Final Rejection — Pending Oct 26, 2023
18288235 DENTAL FILLING KIT LENIHAN, JEFFREY S 1765 §102§103§112 Non-Final OA — Pending Oct 25, 2023
18286577 DENTAL FILLING KIT FEELY, MICHAEL J 1766 §102§103 Final Rejection — Pending Oct 12, 2023
18269981 CURABLE CALCIUM PHOSPHATE DENTAL CEMENT FEELY, MICHAEL J 1766 §103 Non-Final OA — Pending Jun 28, 2023
18269806 CURABLE COMPOSITION FOR DENTAL RESTORATION LENIHAN, JEFFREY S 1765 §103§112 Non-Final OA — Pending Jun 27, 2023
18269401 DENTAL COMPOSITION BUTCHER, ROBERT T 1764 §103§112 Final Rejection 44d overdue Pending Jun 23, 2023
18269032 ZIRCONIA GRANULE, GREEN COMPACT, AND METHODS OF PRODUCTION THEREOF NGUYEN, CAM N 1736 §112 Final Rejection 3d overdue Pending Jun 22, 2023
18034500 DENTAL CURABLE COMPOSITION HAVING GOOD COLOR COMPATIBILITY PEPITONE, MICHAEL F 1767 §102§103 Final Rejection — Pending Apr 28, 2023
18019890 COMPOSITION FOR DENTAL ATTACHMENT HIGGINS, GERARD T 1785 §103 Non-Final OA — Pending Feb 06, 2023
17788936 ENERGY RAY-CURABLE COATING MATERIAL FOR THREE-DIMENSIONAL SHAPED ARTICLES, ENERGY RAY-CURABLE MATERIAL KIT FOR THREE-DIMENSIONAL SHAPING INCLUDING SAME, THREE-DIMENSIONAL SHAPED ARTICLE USING SAME, AND METHOD OF PRODUCTION THEREOF PEPITONE, MICHAEL F 1767 §102§103 Non-Final OA 14d Pending Jun 24, 2022
17761248 DENTAL CURABLE COMPOSITION ISNOR, ALEXANDRA NICOLE 1611 §103 Non-Final OA — Pending Mar 17, 2022
17617959 MOUTHPIECE AND MOUTHPIECE MANUFACTURING METHOD APONTE, MIRAYDA ARLENE 3772 §103§112 Final Rejection — Pending Dec 10, 2021
17606308 ZIRCONIA PRE-SINTERED BODY SUITABLE FOR DENTAL USE AND METHOD FOR PRODUCING THE SAME COLLISTER, ELIZABETH A 1784 §103 Final Rejection — Pending Oct 25, 2021
17418560 DENTAL MILL BLANK WITH OPTIMIZED COLOR TONE DILLON, DANIEL P 1783 §103 Final Rejection 105d overdue Pending Jun 25, 2021
18701333 USE OF COMPACTED POLYVINYL ACETALS AS BINDER IN CERAMIC GREEN SHEETS LISTVOYB, GREGORY — §102§103 Non-Final OA — Pending Apr 15, 2024
18292370 IONOMER RESIN PARTICULATE PRODUCTION METHOD WANG, ALEXANDER A 1784 §103§112 Non-Final OA — Pending Jan 26, 2024
18028269 GLASS LAMINATES WITH REDUCED CREEP AT ELEVATED TEMPERATURE SHUKLA, KRUPA 1787 §103 Final Rejection — Pending Mar 31, 2023

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