Prosecution Insights
Last updated: October 25, 2026

Sinopec Guangzhou Engineering Co. Ltd.

Technology area: Chemistry & Materials

1 pending office actions • 1 art units • 1 examiners • 0 of 1 (0%) have an AI response strategy ready • 1 patents granted in the last 365 days

Analysis

Sinopec Guangzhou Engineering Co. Ltd. currently has 1 pending office action in the Chemistry & Materials technology area. This matter is assigned to 1 distinct examiner, HUANG, RYAN, who is the only individual currently reviewing the company's applications. Having 1 pending action suggests that the company's current patent activity is highly focused on a specific project.

The prosecution involves 1 distinct art unit. HUANG, RYAN is the busiest examiner with 1 pending action, which represents the total current workload for the company. This concentration in 1 distinct art unit under a single point of review means that the company's immediate patent success is tied to a specific examiner's interpretation. Practitioners should focus on the examination style of HUANG, RYAN, as there are no other art units to provide a baseline for comparison within the current portfolio. The 1 pending action defines the company's current interaction with the patent office.

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

Portfolio Summary

1
Total Pending OAs
1
Non-Final OAs
0
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%)
1
Medium (100%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (100%)

Industry Mix

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

1
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.

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

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
HUANG, RYAN 1 53.1% +31.1%

Interview Candidates (1)

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 1 ordered by deadline are shown.

App #TitleExaminerDue in
18245625 METHOD AND APPARATUS FOR PROLONGING CONTINUOUS OPERATION PERIOD OF METHANOL-TO-OLEFINS WATER WASHING PROCESS HUANG, RYAN 23d overdue

Top Art Units

Art UnitApps
1777 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18245625 METHOD AND APPARATUS FOR PROLONGING CONTINUOUS OPERATION PERIOD OF METHANOL-TO-OLEFINS WATER WASHING PROCESS HUANG, RYAN 1777 §103 Non-Final OA 23d overdue Pending Mar 16, 2023

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Frequently Asked Questions

How many pending USPTO office actions does Sinopec Guangzhou Engineering Co. Ltd. have?

Sinopec Guangzhou Engineering Co. Ltd. has 1 pending office actions as of October 2026, spread across 1 art units and 1 examiners.

Which USPTO examiner handles the most Sinopec Guangzhou Engineering Co. Ltd. applications?

Ryan Huang has the most, with 1 of Sinopec Guangzhou Engineering Co. Ltd.'s pending office actions.

What technology area are Sinopec Guangzhou Engineering 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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