Last updated: April 19, 2026

Application No. 17/813,577

CONTROL OF MEIOTIC CROSSOVER IN MAIZE

Non-Final OA

Filed

Jul 19, 2022

Examiner

ZHENG, LI

Art Unit

1662

Tech Center

1600 — Biotechnology & Organic Chemistry

Assignee

Cambridge Enterprise Limited

OA Round

3 (Non-Final)

Interview Optional

— +13.2% interview lift. This examiner has a relatively high allow rate; a written response may suffice.

Based on 1260 resolved cases, 2023–2026

Examiner Intelligence

ZHENG, LI View full profile →

Grants 84% — above average

Career Allow Rate

1055 granted / 1260 resolved

+23.7% vs TC avg

Moderate +13% lift

Without

With

+13.2%

Interview Lift

resolved cases with interview

Typical timeline

2y 8m

Avg Prosecution

30 currently pending

Career history

1290

Total Applications

across all art units

Statute-Specific Performance

§101

3.0%

-37.0% vs TC avg

§103

15.2%

-24.8% vs TC avg

§102

21.6%

-18.4% vs TC avg

§112

49.7%

+9.7% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1260 resolved cases

Prosecution Timeline

Jul 19, 2022

Application Filed

Sep 18, 2024

Non-Final Rejection

Dec 10, 2024

Applicant Interview (Telephonic)

Dec 14, 2024

Examiner Interview Summary

Jan 08, 2025

Response Filed

Feb 17, 2025

Final Rejection

May 29, 2025

Examiner Interview Summary

May 29, 2025

Applicant Interview (Telephonic)

Jul 16, 2025

Request for Continued Examination

Jul 18, 2025

Response after Non-Final Action

Oct 30, 2025

Non-Final Rejection (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/370,761

Patent 12588628

SOYBEAN CULTIVAR 22121100

2y 5m to grant Granted Mar 31, 2026

18/492,615

Patent 12588638

SOYBEAN CULTIVAR 20320703

2y 5m to grant Granted Mar 31, 2026

18/492,632

Patent 12588639

SOYBEAN CULTIVAR 25101703

2y 5m to grant Granted Mar 31, 2026

18/498,262

Patent 12582060

CANOLA INBRED 4PPQP40A

2y 5m to grant Granted Mar 24, 2026

18/047,808

Patent 12577624

TRANSGENIC CORN EVENT ZM_BCS216090 AND METHODS FOR DETECTION AND USES THEREOF

2y 5m to grant Granted Mar 17, 2026

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

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.

Prosecution Projections

3-4

Expected OA Rounds

84%

Grant Probability

97%

With Interview (+13.2%)

2y 8m

Median Time to Grant

High

PTA Risk

Based on 1260 resolved cases by this examiner. Grant probability derived from career allow rate.

CONTROL OF MEIOTIC CROSSOVER IN MAIZE

Interview Optional

Examiner Intelligence

Statute-Specific Performance

Prosecution Timeline

Precedent Cases

Applications granted by this same examiner with similar technology

AI Strategy Recommendation

Prosecution Projections

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