Prosecution Insights
Last updated: October 25, 2026

BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

Technology areas: Biotechnology & Pharmaceuticals • Chemistry & Materials

7 pending office actions • 5 art units • 6 examiners • 2 of 7 (29%) have an AI response strategy ready • 14 patents granted in the last 365 days

Analysis

BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION has 7 pending office actions in Chemistry & Materials. The matters involve 6 distinct examiners across 5 art units, showing broad distribution with some repeated examination context.

SAWYER, JENNIFER C is the busiest examiner, with 2 pending actions. Those matters may support coordinated analysis of chemical claim scope and recurring prior-art issues, while the remaining actions require examiner- and art-unit-specific preparation.

The spread of assignments makes centralized docket review important. Counsel should align technical terminology and disclosure positions across the portfolio, but preserve response strategies that reflect each examination record.

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

Portfolio Summary

7
Total Pending OAs
6
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.

0
Overdue
0
Due this week
1
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.

3
Hard (43%)
3
Medium (43%)
1
Easy (14%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only2 (29%)
§112 only1 (14%)
Double-patenting + other1 (14%)
Multi-statute (no §101)3 (43%)

Industry Mix

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

7
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.

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
SAWYER, JENNIFER C 2 68.4% -8.2%
RIOJA, MELISSA A 1 49.3% +54.1%
LE, HOA T 1 72.7% +11.9%
FEELY, MICHAEL J 1 75.1% +41.9%
BROOKS, KREGG T 1 57.1% +1.5%
LENIHAN, JEFFREY S 1 73.0% +17.0%

Hard Cases (3)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 3 ordered by deadline are shown.

App #TitleExaminerDue in
18705689 POLYETHYLENE COMPOSITION AND USE THEREOF, AND POLYOLEFIN MICROPOROUS BREATHABLE FILM PREPARED THEREFROM RIOJA, MELISSA A —
18556888 PROPYLENE-BASED COPOLYMER, PREPARATION PROCESS AND USE THEREOF, AND POLYPROPYLENE COMPOSITION CONTAINING THE SAME FEELY, MICHAEL J —
18034101 AMINATION CATALYST AND PREPARATION AND USE THEREOF SAWYER, JENNIFER C —

Interview Candidates (4)

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 4 ordered by deadline are shown.

App #TitleExaminerDue in
18248996 PROPYLENE-BUTENE COPOLYMER, PREPARATION METHOD THEREFOR AND USE THEREOF LENIHAN, JEFFREY S 14d
18705689 POLYETHYLENE COMPOSITION AND USE THEREOF, AND POLYOLEFIN MICROPOROUS BREATHABLE FILM PREPARED THEREFROM RIOJA, MELISSA A —
18705485 POLYPROPYLENE MICROSPHERE AND PREPARATION METHOD THEREFOR, 3D PRINTING RAW MATERIAL, AND USE LE, HOA T —
18556888 PROPYLENE-BASED COPOLYMER, PREPARATION PROCESS AND USE THEREOF, AND POLYPROPYLENE COMPOSITION CONTAINING THE SAME FEELY, MICHAEL J —

Top Art Units

Art UnitApps
1764 2
1691 2
1788 1
1766 1
1765 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18705689 POLYETHYLENE COMPOSITION AND USE THEREOF, AND POLYOLEFIN MICROPOROUS BREATHABLE FILM PREPARED THEREFROM RIOJA, MELISSA A 1764 §103§112 Non-Final OA — Pending Apr 29, 2024
18705485 POLYPROPYLENE MICROSPHERE AND PREPARATION METHOD THEREFOR, 3D PRINTING RAW MATERIAL, AND USE LE, HOA T 1788 §112 Non-Final OA — Pending Apr 26, 2024
18556888 PROPYLENE-BASED COPOLYMER, PREPARATION PROCESS AND USE THEREOF, AND POLYPROPYLENE COMPOSITION CONTAINING THE SAME FEELY, MICHAEL J 1766 §103§112 Non-Final OA — Pending Oct 24, 2023
18554053 METHOD FOR PREPARING POLYMER, AND OBTAINED POLYMER BROOKS, KREGG T 1764 §102§103§112DP Non-Final OA — Pending Oct 05, 2023
18034113 AMINATION CATALYST AND PREPARATION AND USE THEREOF SAWYER, JENNIFER C 1691 §103Other Non-Final OA — AI Ready Apr 27, 2023
18034101 AMINATION CATALYST AND PREPARATION AND USE THEREOF SAWYER, JENNIFER C 1691 §103§112 Non-Final OA — AI Ready Apr 27, 2023
18248996 PROPYLENE-BUTENE COPOLYMER, PREPARATION METHOD THEREFOR AND USE THEREOF LENIHAN, JEFFREY S 1765 §103 Final Rejection 14d Pending Apr 13, 2023

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Frequently Asked Questions

How many pending USPTO office actions does BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION have?

BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION has 7 pending office actions as of October 2026, spread across 5 art units and 6 examiners.

Which USPTO examiner handles the most BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION applications?

Jennifer C Sawyer has the most, with 2 of BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION's pending office actions.

What technology area are BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION's patent applications in?

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

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