Prosecution Insights
Last updated: May 29, 2026

Sumco Corporation

7 pending office actions • 3 art units • 4 examiners • 0 of 7 (0%) have an AI response strategy ready • 32 patents granted in the last 365 days

Portfolio Summary

7
Total Pending OAs
4
Non-Final OAs
3
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 7 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

2
Overdue
0
Due this week
3
Due this month
0
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. 7 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (2)Due ≤ 30 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.

1
Hard (14%)
6
Medium (86%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only1 (14%)
§103 only6 (86%)

Industry Mix

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

5
Life Sciences
71% of docket
0
Information Tech
0% of docket
1
Communications
14% of docket
1
Semiconductors
14% of docket
0
Mechanical / Eng
0% of docket
0
Business / Other
0% 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
QI, HUA 4 55.4% +23.7%
SONG, MATTHEW J 1 60.4% +14.0%
ISLAM, PROMOTTO TAJRIAN 1 81.0% +10.6%
CHEN, DAVID Z 1 44.4% +49.5%

Hard Cases (1)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18562960 WAFER VISUAL INSPECTION APPARATUS AND WAFER VISUAL INSPECTION METHOD ISLAM, PROMOTTO TAJRIAN 30d

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
18314973 SILICON WAFER AND EPITAXIAL SILICON WAFER CHEN, DAVID Z 23d overdue
17996737 SINGLE CRYSTAL PRODUCTION APPARATUS AND SINGLE CRYSTAL PRODUCTION METHOD QI, HUA 18d overdue
18237001 METHOD OF MANUFACTURING MONOCRYSTALLINE SILICON QI, HUA 19d
18036988 METHOD OF ESTIMATING OXYGEN CONCENTRATION IN SILICON SINGLE CRYSTAL, METHOD OF MANUFACTURING SILICON SINGLE CRYSTAL, AND SILICON SINGLE CRYSTAL MANUFACTURING APPARATAUS QI, HUA 29d
18562960 WAFER VISUAL INSPECTION APPARATUS AND WAFER VISUAL INSPECTION METHOD ISLAM, PROMOTTO TAJRIAN 30d
18687096 MANUFACTURING METHOD OF SINGLE CRYSTAL AND SINGLE CRYSTAL MANUFACTURING DEVICE SONG, MATTHEW J 71d
19243262 MANUFACTURING METHOD OF QUARTZ GLASS CRUCIBLE QI, HUA 76d

Top Art Units

Art UnitApps
1714 5
2669 1
2815 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19243262 MANUFACTURING METHOD OF QUARTZ GLASS CRUCIBLE QI, HUA 1714 §103 Non-Final OA 76d Pending Jun 19, 2025
18687096 MANUFACTURING METHOD OF SINGLE CRYSTAL AND SINGLE CRYSTAL MANUFACTURING DEVICE SONG, MATTHEW J 1714 §103 Non-Final OA 71d Pending Feb 27, 2024
18562960 WAFER VISUAL INSPECTION APPARATUS AND WAFER VISUAL INSPECTION METHOD ISLAM, PROMOTTO TAJRIAN 2669 §101 Final Rejection 30d Pending Nov 21, 2023
18237001 METHOD OF MANUFACTURING MONOCRYSTALLINE SILICON QI, HUA 1714 §103 Non-Final OA 19d Pending Aug 23, 2023
18036988 METHOD OF ESTIMATING OXYGEN CONCENTRATION IN SILICON SINGLE CRYSTAL, METHOD OF MANUFACTURING SILICON SINGLE CRYSTAL, AND SILICON SINGLE CRYSTAL MANUFACTURING APPARATAUS QI, HUA 1714 §103 Non-Final OA 29d Pending May 15, 2023
18314973 SILICON WAFER AND EPITAXIAL SILICON WAFER CHEN, DAVID Z 2815 §103 Final Rejection 23d overdue Pending May 10, 2023
17996737 SINGLE CRYSTAL PRODUCTION APPARATUS AND SINGLE CRYSTAL PRODUCTION METHOD QI, HUA 1714 §103 Final Rejection 18d overdue Pending Oct 20, 2022

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