Technology area: Chemistry & Materials
2 pending office actions • 2 art units • 2 examiners • 0 of 2 (0%) have an AI response strategy ready • 5 patents granted in the last 365 days
Wanhua Chemical Group Co., Ltd. has 2 pending office actions in Chemistry & Materials. The matters are assigned across 2 examiners and 2 art units, so prosecution management requires attention to separate technical channels.
ZHANG, RUIYUN is the busiest examiner, with 1 pending matter. The available data does not show concentration beyond that assignment, supporting matter-specific response planning.
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.
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.
| Bucket | Cases |
|---|---|
| §103 only | 1 (50%) |
| Multi-statute (no §101) | 1 (50%) |
How the docket's pending cases split across USPTO tech-center bands.
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.
| Examiner | Apps on this docket | Allow rate | Interview lift |
|---|---|---|---|
| ZHANG, RUIYUN | 1 | 70.3% | +10.7% |
| KELLEY, HEIDI RIVIERE | 1 | 16.1% | +21.3% |
Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 2 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 17997071 | PRODUCTION METHOD FOR PREPARING POLYLACTIC ACID BY MEANS OF RING-OPENING POLYMERIZATION METHOD, AND PREPOLYMER MIXTURE AND POLYLACTIC ACID | KELLEY, HEIDI RIVIERE | 9d |
| 18574490 | POLYMER COMPOSITE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF | ZHANG, RUIYUN | — |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 17997071 | PRODUCTION METHOD FOR PREPARING POLYLACTIC ACID BY MEANS OF RING-OPENING POLYMERIZATION METHOD, AND PREPOLYMER MIXTURE AND POLYLACTIC ACID | KELLEY, HEIDI RIVIERE | 9d |
| 18574490 | POLYMER COMPOSITE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF | ZHANG, RUIYUN | — |
| Art Unit | Apps |
|---|---|
| 1782 | 1 |
| 1765 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 18574490 | POLYMER COMPOSITE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF | ZHANG, RUIYUN | 1782 | §102§112 | Non-Final OA | — | Pending | Dec 27, 2023 |
| 17997071 | PRODUCTION METHOD FOR PREPARING POLYLACTIC ACID BY MEANS OF RING-OPENING POLYMERIZATION METHOD, AND PREPOLYMER MIXTURE AND POLYLACTIC ACID | KELLEY, HEIDI RIVIERE | 1765 | §103 | Final Rejection | 9d | Pending | Oct 25, 2022 |
IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.
Start Free TrialWanhua Chemical Group Co., Ltd. has 2 pending office actions as of October 2026, spread across 2 art units and 2 examiners.
Ruiyun Zhang has the most, with 1 of Wanhua Chemical Group Co., Ltd.'s pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
