Last updated: July 17, 2026

Application No. 18/685,561

DRAG REDUCING AGENT

Non-Final OA

Filed

Feb 22, 2024

Priority

Dec 02, 2021 — provisional 63/285,173 +2 more

Examiner

SUE-AKO, ANDREW B.

Art Unit

Tech Center

Assignee

Dow Global Technologies LLC

OA Round

1 (Non-Final)

Interview Optional

— +27.6% interview lift. Examiner has a relatively high allowance rate (71%); +27.6% interview lift. A written response may suffice.

Based on 733 resolved cases, 2023–2026

Examiner Intelligence

SUE-AKO, ANDREW B. View full profile →

Grants 71% — above average

Career Allowance Rate

523 granted / 733 resolved

+11.4% vs TC avg

Strong +28% interview lift

Without

With

+27.6%

Interview Lift

resolved cases with interview

Typical timeline

2y 2m

Avg Prosecution

23 currently pending

Career history

754

Total Applications

across all art units

Statute-Specific Performance

§101

0.4%

-39.6% vs TC avg

§103

68.2%

+28.2% vs TC avg

§102

14.5%

-25.5% vs TC avg

§112

6.0%

-34.0% vs TC avg

Black line = Tech Center average estimate • Based on career data from 733 resolved cases

Prosecution Timeline

Feb 22, 2024

Application Filed

Jun 05, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/509,897

Patent 12680014

Electro-Hydrofracturing Using Electrically Conductive Proppants and Related Methods

2y 8m to grant Granted Jul 14, 2026

18/629,270

Patent 12680400

FLUID LOSS CONTROL ADDITIVES FOR DRILLING FLUIDS

2y 3m to grant Granted Jul 14, 2026

18/802,206

Patent 12669033

ENCAPSULATED INTERNAL FILTER CAKE BREAKER

1y 10m to grant Granted Jun 30, 2026

18/620,031

Patent 12655697

LOST CIRCULATION MATERIAL COMPOSITIONS UTILIZING SPENT DRILLING FLUIDS AND METHODS FOR USING THE SAME

2y 2m to grant Granted Jun 16, 2026

18/651,003

Patent 12655339

PACKER FLUIDS INCLUDING ETHYLENE GLYCOL

2y 1m to grant Granted Jun 16, 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

1-2

Expected OA Rounds

71%

Grant Probability

99%

With Interview (+27.6%)

2y 2m (~0m remaining)

Median Time to Grant

Low

PTA Risk

Based on 733 resolved cases by this examiner. Grant probability derived from career allowance rate.