Prosecution Insights
Last updated: October 25, 2026

Young Chang Chemical Co. Ltd.

Technology area: Chemistry & Materials

2 pending office actions • 2 art units • 2 examiners • 0 of 2 (0%) have an AI response strategy ready

Analysis

Young Chang Chemical Co. Ltd. has 1 pending office action within the Chemistry & Materials technology area. This single matter is being handled by 1 distinct examiner in 1 distinct art unit. This indicates a highly concentrated interaction with the patent office, with no current distribution of cases across different officials or departments.

KUMAR, PREETI is the busiest examiner for this portfolio, currently managing 1 pending office action. Because the total pending actions for the company is 1, this examiner is in charge of the entire active workload. This concentration suggests that the prosecution results for the current portfolio are entirely dependent on the review of this single individual. There are no other active matters to provide alternative examiner perspectives.

The involvement of 1 distinct art unit for the 1 pending office action confirms a narrow administrative focus for the current filings. Practitioners should note that there is no diversification of examiner perspectives within the Chemistry & Materials area for this portfolio. The workload is entirely centralized under KUMAR, PREETI, which simplifies the management of the company's active patent matters.

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

Portfolio Summary

2
Total Pending OAs
1
Non-Final OAs
1
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.

1
Overdue
0
Due this week
0
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.

0
Hard (0%)
2
Medium (100%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only2 (100%)

Industry Mix

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

2
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.

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

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
LAOBAK, ANDREW KEELAN 1 75.8% +34.7%
KUMAR, PREETI 1 31.9% +43.7%

Interview Candidates (2)

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 2 ordered by deadline are shown.

App #TitleExaminerDue in
17641229 PROCESS LIQUID COMPOSITION FOR PHOTOLITHOGRAPHY AND PATTERN FORMING METHOD USING SAME KUMAR, PREETI 72d overdue
18016725 ETCHANT COMPOSITION FOR ADJUSTING ETCHING SELECTIVITY OF TITANIUM NITRIDE FILM WITH RESPECT TO TUNGSTEN FILM, AND ETCHING METHOD USING SAME LAOBAK, ANDREW KEELAN —

Top Art Units

Art UnitApps
1713 1
1761 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18016725 ETCHANT COMPOSITION FOR ADJUSTING ETCHING SELECTIVITY OF TITANIUM NITRIDE FILM WITH RESPECT TO TUNGSTEN FILM, AND ETCHING METHOD USING SAME LAOBAK, ANDREW KEELAN 1713 §103 Non-Final OA — Pending Jan 18, 2023
17641229 PROCESS LIQUID COMPOSITION FOR PHOTOLITHOGRAPHY AND PATTERN FORMING METHOD USING SAME KUMAR, PREETI 1761 §103 Final Rejection 72d overdue Pending Mar 08, 2022

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Frequently Asked Questions

How many pending USPTO office actions does Young Chang Chemical Co. Ltd. have?

Young Chang Chemical Co. Ltd. has 2 pending office actions as of October 2026, spread across 2 art units and 2 examiners.

Which USPTO examiner handles the most Young Chang Chemical Co. Ltd. applications?

Andrew Keelan Laobak has the most, with 1 of Young Chang Chemical Co. Ltd.'s pending office actions.

What technology area are Young Chang Chemical Co. Ltd.'s patent applications in?

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

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