Prosecution Insights
Last updated: October 02, 2026

Yoshino Gypsum Co., Ltd.

Technology areas: Chemistry & Materials • Semiconductors, Circuits & Optics • Transportation, E-Commerce & Mechanical Systems • Medical Devices & Mechanical Engineering

7 pending office actions • 5 art units • 7 examiners • 0 of 7 (0%) have an AI response strategy ready • 8 patents granted in the last 365 days

Analysis

Yoshino Gypsum Co., Ltd. is currently managing 6 pending office actions within the Transportation, E-Commerce & Mechanical Systems technology area. These 6 actions are assigned to 6 distinct examiners, meaning each case is under the review of a different individual. This distribution requires the company to manage six independent prosecution tracks simultaneously. The portfolio is spread across 4 distinct art units, which indicates a variety of technical classifications within the mechanical systems field.

CORNETT, ROBERT D is the busiest examiner for the portfolio, currently handling 1 pending office action. Since each of the 6 distinct examiners is responsible for exactly 1 pending office action, the workload is evenly distributed across the USPTO staff. For practitioners, this means that the outcome of the 6 pending office actions will depend on six different examiner perspectives across 4 distinct art units. This structure necessitates a versatile legal strategy to address the unique requirements of each individual examiner.

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

Portfolio Summary

7
Total Pending OAs
2
Non-Final OAs
5
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
1
Due this month
0
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.

3
Hard (43%)
4
Medium (57%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only3 (43%)
§102 only1 (14%)
Multi-statute (no §101)3 (43%)

Industry Mix

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

1
Life Sciences
14% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
1
Semiconductors
14% of docket
3
Mechanical / Eng
43% of docket
2
Business / Other
29% 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.

70 h
Manual time on pending OAs
14 h
Time saved (low, 20%)
24 h
Time saved (mid, 35%)
0.6 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
CORNETT, ROBERT D 1 39.2% +44.4%
SADLON, JOSEPH 1 63.4% +26.4%
SHAKERI, HADI 1 62.1% +37.0%
SORKIN, DAVID L 1 67.4% +12.8%
DAVIES, SAMUEL ALLEN 1 36.9% +30.1%
ZHANG, KELING NMN 1 66.8% +17.6%
KALISZEWSKI, ALINA ROSE 1 84.4% +23.8%

Hard Cases (3)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 3 ordered by deadline are shown.

App #TitleExaminerDue in
17998289 NEUTRON BEAM SHIELDING GYPSUM-BASED BUILDING BOARD AND METHOD OF MANUFACTURING NEUTRON BEAM SHIELDING GYPSUM-BASED BUILDING BOARD KALISZEWSKI, ALINA ROSE 20d
18863502 BUILDING WALL SADLON, JOSEPH —
18572633 CUTTING DEVICE, APPARATUS FOR MANUFACTURING GYPSUM BOARD, AND CUTTING METHOD DAVIES, SAMUEL ALLEN —

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
17998289 NEUTRON BEAM SHIELDING GYPSUM-BASED BUILDING BOARD AND METHOD OF MANUFACTURING NEUTRON BEAM SHIELDING GYPSUM-BASED BUILDING BOARD KALISZEWSKI, ALINA ROSE 20d
18881937 CUTTING DEVICE, PLATE-SHAPED BODY MANUFACTURING APPARATUS, GYPSUM PLATE MANUFACTURING APPARATUS, AND GYPSUM PLATE MANUFACTURING METHOD CORNETT, ROBERT D —
18863502 BUILDING WALL SADLON, JOSEPH —
18698586 PROTECTIVE CAP SHAKERI, HADI —
18690857 MIXING AND STIRRING APPARATUS, GYPSUM BOARD MANUFACTURING APPARATUS, AND GYPSUM BOARD MANUFACTURING METHOD SORKIN, DAVID L —
18572633 CUTTING DEVICE, APPARATUS FOR MANUFACTURING GYPSUM BOARD, AND CUTTING METHOD DAVIES, SAMUEL ALLEN —
18547782 GYPSUM COMPOSITION FOR MOLD PRODUCTION ZHANG, KELING NMN —

Top Art Units

Art UnitApps
3635 1
3723 1
3724 1
1732 1
2881 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18881937 CUTTING DEVICE, PLATE-SHAPED BODY MANUFACTURING APPARATUS, GYPSUM PLATE MANUFACTURING APPARATUS, AND GYPSUM PLATE MANUFACTURING METHOD CORNETT, ROBERT D — §103 Final Rejection — Pending Jan 07, 2025
18863502 BUILDING WALL SADLON, JOSEPH 3635 §102§103§112 Non-Final OA — Pending Nov 06, 2024
18698586 PROTECTIVE CAP SHAKERI, HADI 3723 §103 Final Rejection — Pending Apr 04, 2024
18690857 MIXING AND STIRRING APPARATUS, GYPSUM BOARD MANUFACTURING APPARATUS, AND GYPSUM BOARD MANUFACTURING METHOD SORKIN, DAVID L — §102 Non-Final OA — Pending Mar 11, 2024
18572633 CUTTING DEVICE, APPARATUS FOR MANUFACTURING GYPSUM BOARD, AND CUTTING METHOD DAVIES, SAMUEL ALLEN 3724 §102§103§112 Final Rejection — Pending Dec 20, 2023
18547782 GYPSUM COMPOSITION FOR MOLD PRODUCTION ZHANG, KELING NMN 1732 §103 Final Rejection — Pending Aug 24, 2023
17998289 NEUTRON BEAM SHIELDING GYPSUM-BASED BUILDING BOARD AND METHOD OF MANUFACTURING NEUTRON BEAM SHIELDING GYPSUM-BASED BUILDING BOARD KALISZEWSKI, ALINA ROSE 2881 §103§112 Final Rejection 20d Pending Nov 09, 2022

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