Prosecution Insights
Last updated: October 25, 2026

Dongjin Semichem Co., Ltd.

Technology area: Chemistry & Materials

10 pending office actions • 8 art units • 10 examiners • 0 of 10 (0%) have an AI response strategy ready • 5 patents granted in the last 365 days

Analysis

Dongjin Semichem Co., Ltd. has 10 pending office actions in Chemistry & Materials. The matters involve 10 distinct examiners and 8 distinct art units, showing broad examiner distribution across a smaller number of art-unit settings.

NGUYEN, HAIDUNG D is the busiest examiner, with 1 pending matter. Counsel should emphasize matter-specific responses while using the repeated art-unit assignments to identify relevant procedural patterns where appropriate.

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

Portfolio Summary

10
Total Pending OAs
8
Non-Final OAs
2
Final Rejections
0
Advisory / Quayle

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.

5
Hard (50%)
5
Medium (50%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only5 (50%)
Multi-statute (no §101)5 (50%)

Industry Mix

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

10
Life Sciences
100% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% 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.

100 h
Manual time on pending OAs
20 h
Time saved (low, 20%)
35 h
Time saved (mid, 35%)
0.9 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
NGUYEN, HAIDUNG D 1 64.8% +28.1%
DAVIS, SHENG HAN 1 66.3% +33.1%
NGUYEN, KHANH TUAN 1 74.5% +18.7%
DINH, BACH T 1 55.5% +31.1%
LUSTGRAAF, BENJAMIN T 1 58.3% +21.4%
CHACKO DAVIS, DABORAH 1 72.0% +20.4%
LU, JIONG-PING 1 83.6% +7.9%
STONEHOCKER, VIRGINIA LEE 1 81.1% +15.4%
CHU, JOHN S Y 1 76.8% +5.4%
EGWIM, KELECHI CHIDI 1 69.7% +14.7%

Quick Wins (2)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18512948 ORGANIC LAYER POLISHING COMPOSITION AND METHOD FOR POLISHING USING SAME LU, JIONG-PING —
18179742 LOW-REFRACTIVE-INDEX THERMOSETTING COMPOSITION, OPTICAL MEMBER FORMED THEREFROM, AND DISPLAY DEVICE STONEHOCKER, VIRGINIA LEE —

Hard Cases (5)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 5 ordered by deadline are shown.

App #TitleExaminerDue in
19210245 CONDUCTIVE SLURRY FOR SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY COMPRISING SAME NGUYEN, HAIDUNG D —
18749327 GRAPHITE OXIDE, GRAPHENE OXIDE, AND REDUCED GRAPHENE OXIDE DAVIS, SHENG HAN —
18620949 POSITIVE ELECTRODE ACTIVE MATERIAL COMPOSITE FOR BATTERY, SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY LUSTGRAAF, BENJAMIN T —
18431934 POSITIVE PHOTOSENSITIVE RESIN COMPOSITION AND DISPLAY DEVICE COMPRISING SAME CHACKO DAVIS, DABORAH —
18090313 COMPOUND, RESIST UNDERLAYER FILM COMPOSITION INCLUDING SAME, AND RESIST UNDERLAYER FILM CHU, JOHN S Y —

Interview Candidates (8)

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
19210245 CONDUCTIVE SLURRY FOR SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY COMPRISING SAME NGUYEN, HAIDUNG D —
18749327 GRAPHITE OXIDE, GRAPHENE OXIDE, AND REDUCED GRAPHENE OXIDE DAVIS, SHENG HAN —
18746908 CONDUCTIVE AGENT SLURRY FOR SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY ELECTRODE INCLUDING SAME, AND SECONDARY BATTERY NGUYEN, KHANH TUAN —
18678236 SOLAR CELL AND METHOD OF FORMING THE SAME DINH, BACH T —
18620949 POSITIVE ELECTRODE ACTIVE MATERIAL COMPOSITE FOR BATTERY, SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY LUSTGRAAF, BENJAMIN T —
18431934 POSITIVE PHOTOSENSITIVE RESIN COMPOSITION AND DISPLAY DEVICE COMPRISING SAME CHACKO DAVIS, DABORAH —
18179742 LOW-REFRACTIVE-INDEX THERMOSETTING COMPOSITION, OPTICAL MEMBER FORMED THEREFROM, AND DISPLAY DEVICE STONEHOCKER, VIRGINIA LEE —
18089140 POLYIMIDE-BASED COMPOSITION AND POLYIMIDE FILM EGWIM, KELECHI CHIDI —

Top Art Units

Art UnitApps
1761 2
1737 2
1732 1
1726 1
1727 1
1713 1
1766 1
1762 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19210245 CONDUCTIVE SLURRY FOR SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY COMPRISING SAME NGUYEN, HAIDUNG D 1761 §102§103 Non-Final OA — Pending May 16, 2025
18749327 GRAPHITE OXIDE, GRAPHENE OXIDE, AND REDUCED GRAPHENE OXIDE DAVIS, SHENG HAN 1732 §102§103§112 Non-Final OA — Pending Jun 20, 2024
18746908 CONDUCTIVE AGENT SLURRY FOR SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY ELECTRODE INCLUDING SAME, AND SECONDARY BATTERY NGUYEN, KHANH TUAN 1761 §103 Non-Final OA — Pending Jun 18, 2024
18678236 SOLAR CELL AND METHOD OF FORMING THE SAME DINH, BACH T 1726 §103 Non-Final OA — Pending May 30, 2024
18620949 POSITIVE ELECTRODE ACTIVE MATERIAL COMPOSITE FOR BATTERY, SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY LUSTGRAAF, BENJAMIN T 1727 §102§103 Non-Final OA — Pending Mar 28, 2024
18431934 POSITIVE PHOTOSENSITIVE RESIN COMPOSITION AND DISPLAY DEVICE COMPRISING SAME CHACKO DAVIS, DABORAH 1737 §102§103 Non-Final OA — Pending Feb 03, 2024
18512948 ORGANIC LAYER POLISHING COMPOSITION AND METHOD FOR POLISHING USING SAME LU, JIONG-PING 1713 §103 Final Rejection — Pending Nov 17, 2023
18179742 LOW-REFRACTIVE-INDEX THERMOSETTING COMPOSITION, OPTICAL MEMBER FORMED THEREFROM, AND DISPLAY DEVICE STONEHOCKER, VIRGINIA LEE 1766 §103 Non-Final OA — Pending Mar 07, 2023
18090313 COMPOUND, RESIST UNDERLAYER FILM COMPOSITION INCLUDING SAME, AND RESIST UNDERLAYER FILM CHU, JOHN S Y 1737 §102§112 Final Rejection — Pending Dec 28, 2022
18089140 POLYIMIDE-BASED COMPOSITION AND POLYIMIDE FILM EGWIM, KELECHI CHIDI 1762 §103 Non-Final OA — Pending Dec 27, 2022

Managing Dongjin Semichem Co., Ltd.'s Patent Portfolio?

IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.

Start Free Trial

Frequently Asked Questions

How many pending USPTO office actions does Dongjin Semichem Co., Ltd. have?

Dongjin Semichem Co., Ltd. has 10 pending office actions as of October 2026, spread across 8 art units and 10 examiners.

Which USPTO examiner handles the most Dongjin Semichem Co., Ltd. applications?

Haidung D Nguyen has the most, with 1 of Dongjin Semichem Co., Ltd.'s pending office actions.

What technology area are Dongjin Semichem Co., Ltd.'s patent applications in?

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

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month