Last updated: October 04, 2026

Application No. 18/146,472

HIGH-EFFICIENCY CYCLIC PREPARATION METHOD FOR COLUMNAR TAURINE

Final Rejection

Filed

Dec 27, 2022

Priority

Jun 22, 2022 — CN 202210720762.3

Examiner

DOLETSKI, BLAINE G

Art Unit

1692

Tech Center

1600 — Biotechnology & Organic Chemistry

Assignee

Qianjiang Yongan Pharmaceutical Co. Ltd.

OA Round

2 (Final)

Interview Optional

— +9.1% interview lift. Interview already conducted in this application's prosecution history. This examiner has a 75% grant rate with +9.1% interview lift. Since an interview has already been tried, recommend written response with narrowed claims based on precedent claim evolution patterns.

Based on 560 resolved cases, 2023–2026

Examiner Intelligence

DOLETSKI, BLAINE G View full profile →

Grants 75% — above average

Career Allowance Rate

420 granted / 560 resolved

+15.0% vs TC avg

Moderate +9% lift

Without

With

+9.1%

Interview Lift

resolved cases with interview

Fast prosecutor

2y 1m

Avg Prosecution

17 currently pending

Career history

585

Total Applications

across all art units

Statute-Specific Performance

§101

1.3%

-38.7% vs TC avg

§103

43.1%

+3.1% vs TC avg

§102

13.7%

-26.3% vs TC avg

§112

27.4%

-12.6% vs TC avg

Black line = Tech Center average estimate • Based on career data from 560 resolved cases

Prosecution Timeline

Dec 27, 2022

Application Filed

Mar 02, 2026

Examiner Interview (Telephonic)

Mar 23, 2026

Non-Final Rejection mailed

Jun 23, 2026

Response Filed

Aug 12, 2026

Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/087,969

Patent 12747204

PROCESS FOR THE PREPARATION OF CYSTEAMINE BITARTRATE AND PRODUCT SO OBTAINED

3y 9m to grant Granted Sep 29, 2026

19/101,657

Patent 12679798

CONTINUOUS METHOD FOR PRODUCING N-BUTYL(METH)ACRYLATE INCLUDING A CATALYST RECIRCULATION PROCESS

1y 5m to grant Granted Jul 14, 2026

17/613,834

Patent 12668566

PREPARATION METHOD FOR SALICYLAMINE ACETATE

4y 0m to grant Granted Jun 30, 2026

17/995,881

Patent 12668570

PROCESS FOR SYNTHESIZING SULFONATED TRIARYL METHANE COMPOUNDS

3y 8m to grant Granted Jun 30, 2026

18/724,617

Patent 12668564

METHOD FOR PREPARING BIS(GLYCOL)TEREPHTHALATE AND POLYESTER RESIN USING SAME

2y 0m to grant Granted Jun 30, 2026

Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.

Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4

Expected OA Rounds

75%

Grant Probability

84%

With Interview (+9.1%)

2y 1m (~0m remaining)

Median Time to Grant

Moderate

PTA Risk

Based on 560 resolved cases by this examiner. Grant probability derived from career allowance rate.