Prosecution Insights
Last updated: October 27, 2026

TOYOBO MC Corporation

Technology area: Chemistry & Materials

16 pending office actions • 15 art units • 15 examiners • 0 of 16 (0%) have an AI response strategy ready • 8 patents granted in the last 365 days

Analysis

TOYOBO MC Corporation has 15 pending office actions in Chemistry & Materials. The portfolio involves 14 examiners and 14 art units, showing wide distribution across both examiner assignments and technical examination groups.

KARST, DAVID THOMAS is the busiest examiner, with 2 pending matters. The limited concentration with that examiner means most prosecution work is spread among other examiner relationships, rather than being controlled by a single point of contact.

Because the examiner and art-unit counts are both 14, counsel should maintain detailed matter-level tracking. Coordination can improve consistency, but responses will likely need to account for the distinct examination settings represented across the portfolio.

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

Portfolio Summary

16
Total Pending OAs
10
Non-Final OAs
6
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 1 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

0
Overdue
0
Due this week
0
Due this month
1
Due in next 60 days
0
Due later

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.

6
Hard (38%)
10
Medium (62%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only9 (56%)
Double-patenting + other1 (6%)
Multi-statute (no §101)6 (38%)

Industry Mix

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

14
Life Sciences
88% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
1
Semiconductors
6% of docket
0
Mechanical / Eng
0% of docket
1
Business / Other
6% 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.

160 h
Manual time on pending OAs
32 h
Time saved (low, 20%)
56 h
Time saved (mid, 35%)
1.4 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KARST, DAVID THOMAS 2 64.8% +9.7%
IMANI, ELIZABETH MARY COLE 1 33.5% +24.9%
FRAZIER, KELVIN MITCHELL 1 — —
SANDERSON, LEE E 1 45.2% +45.2%
HE, QIANPING 1 66.2% +15.8%
WALKER, AJA ARYANNA 1 66.7% +42.9%
LEE, ALEXANDER N 1 75.4% +11.0%
YOON, TAE H 1 66.7% +24.5%
JOHNSTON, BRIEANN R 1 49.6% +32.6%
BOYLE, ROBERT C 1 69.7% -2.8%

Hard Cases (6)

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 #TitleExaminerDue in
17799862 ROTOR CORE AND METHOD OF MANUFACTURING ROTOR CORE TALPALATSKI, ALEXANDER 57d
19121987 FILTER MATERIAL AND FILTER IMANI, ELIZABETH MARY COLE —
18721436 AQUEOUS DISPERSION COMPOSITION CONTAINING POLYESTER RESIN SANDERSON, LEE E —
18718504 GAS TREATMENT SYSTEM AND GAS TREATMENT METHOD HE, QIANPING —
18285050 PHOTOSENSITIVE RESIN COMPOSITION FOR FLEXOGRAPHIC PRINTING ORIGINAL PLATE AND FLEXOGRAPHIC PRINTING ORIGINAL PLATE OBTAINED THEREFROM BOYLE, ROBERT C —
18270372 THERMOPLASTIC POLYESTER RESIN COMPOSITION, AND EXTRUSION-MOLDED ARTICLE COMPOSED THEREOF KARST, DAVID THOMAS —

Interview Candidates (7)

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 7 ordered by deadline are shown.

App #TitleExaminerDue in
19121987 FILTER MATERIAL AND FILTER IMANI, ELIZABETH MARY COLE —
18721436 AQUEOUS DISPERSION COMPOSITION CONTAINING POLYESTER RESIN SANDERSON, LEE E —
18718504 GAS TREATMENT SYSTEM AND GAS TREATMENT METHOD HE, QIANPING —
18712525 ADHESIVE COMPOSITION, ADHESIVE SHEET, ELECTROMAGNETIC WAVE SHIELD FILM, LAMINATE, AND PRINTED CIRCUIT BOARD WALKER, AJA ARYANNA —
18690984 PHOTOSENSITIVE RESIN PRINTING PLATE PRECURSOR FOR RELIEF PRINTING, AND PRINTING PLATE LEE, ALEXANDER N —
18687156 ADHESIVE RESIN COMPOSITION YOON, TAE H —
18284995 FLAME-RETARDANT THERMOPLASTIC POLYESTER ELASTOMER RESIN COMPOSITION, AND MOLDED ARTICLE OBTAINED THEREFROM JOHNSTON, BRIEANN R —

Top Art Units

Art UnitApps
1767 2
1789 1
1783 1
3991 1
1776 1
1761 1
1737 1
1762 1
1766 1
1764 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19121987 FILTER MATERIAL AND FILTER IMANI, ELIZABETH MARY COLE 1789 §102§103 Non-Final OA — Pending Apr 17, 2025
18726495 ELECTRODE, BATTERY CELL, CELL STACK, AND REDOX-FLOW BATTERY SYSTEM FRAZIER, KELVIN MITCHELL 1783 §103 Non-Final OA — Pending Jul 03, 2024
18721436 AQUEOUS DISPERSION COMPOSITION CONTAINING POLYESTER RESIN SANDERSON, LEE E 3991 §102§103 Non-Final OA — Pending Jun 18, 2024
18718504 GAS TREATMENT SYSTEM AND GAS TREATMENT METHOD HE, QIANPING 1776 §102§103§112 Non-Final OA — Pending Jun 11, 2024
18712525 ADHESIVE COMPOSITION, ADHESIVE SHEET, ELECTROMAGNETIC WAVE SHIELD FILM, LAMINATE, AND PRINTED CIRCUIT BOARD WALKER, AJA ARYANNA 1761 §103 Non-Final OA — Pending May 22, 2024
18690984 PHOTOSENSITIVE RESIN PRINTING PLATE PRECURSOR FOR RELIEF PRINTING, AND PRINTING PLATE LEE, ALEXANDER N 1737 §103 Non-Final OA — Pending Mar 11, 2024
18687156 ADHESIVE RESIN COMPOSITION YOON, TAE H 1762 §102§112DP Non-Final OA — Pending Feb 27, 2024
18683019 POLYBENZOXAZOLE POWDER AND METHOD FOR PRODUCING THE SAME KARST, DAVID THOMAS 1767 §103 Non-Final OA — Pending Feb 12, 2024
18284995 FLAME-RETARDANT THERMOPLASTIC POLYESTER ELASTOMER RESIN COMPOSITION, AND MOLDED ARTICLE OBTAINED THEREFROM JOHNSTON, BRIEANN R 1766 §103 Final Rejection — Pending Sep 29, 2023
18285050 PHOTOSENSITIVE RESIN COMPOSITION FOR FLEXOGRAPHIC PRINTING ORIGINAL PLATE AND FLEXOGRAPHIC PRINTING ORIGINAL PLATE OBTAINED THEREFROM BOYLE, ROBERT C 1764 §102§103 Final Rejection — Pending Sep 29, 2023
18283356 HOT MELT ADHESIVE COMPOSITION AND LAMINATE CHEN, VIVIAN 1787 §103 Final Rejection — Pending Sep 21, 2023
18282842 POLYESTER RESIN COMPOSITION, AQUEOUS DISPERSION, COATING COMPOSITION, AND COATING FILM MCDONOUGH, JAMES E 1734 §103 Non-Final OA — Pending Sep 19, 2023
18279662 AQUEOUS DISPERSION ZHANG, RUIYUN 1782 §103 Final Rejection — Pending Aug 31, 2023
18270372 THERMOPLASTIC POLYESTER RESIN COMPOSITION, AND EXTRUSION-MOLDED ARTICLE COMPOSED THEREOF KARST, DAVID THOMAS 1767 §103§112 Final Rejection — Pending Jun 29, 2023
18037633 INORGANIC MATERIAL-REINFORCED THERMOPLASTIC POLYESTER RESIN COMPOSITION AND METHOD FOR PRODUCING SAME WU, ANDREA 1763 §103 Final Rejection — Pending May 18, 2023
17799862 ROTOR CORE AND METHOD OF MANUFACTURING ROTOR CORE TALPALATSKI, ALEXANDER 2837 §103§112 Non-Final OA 57d Pending Aug 15, 2022

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Frequently Asked Questions

How many pending USPTO office actions does TOYOBO MC Corporation have?

TOYOBO MC Corporation has 16 pending office actions as of October 2026, spread across 15 art units and 15 examiners.

Which USPTO examiner handles the most TOYOBO MC Corporation applications?

David Thomas Karst has the most, with 2 of TOYOBO MC Corporation's pending office actions.

What technology area are TOYOBO MC Corporation's patent applications in?

Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.

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