Last updated: July 17, 2026

Application No. 18/528,266

APPARATUS AND METHODS FOR MIXING VISCOUS FLUIDS THROUGH ROTATIONAL AND SHAKING MOTIONS

Non-Final OA

Filed

Dec 04, 2023

Priority

Jun 08, 2021 — provisional 63/208,103 +1 more

Examiner

BHATIA, ANSHU

Art Unit

1774

Tech Center

1700 — Chemical & Materials Engineering

Assignee

The Regents of the University of California

OA Round

1 (Non-Final)

Interview Optional

— +17.0% interview lift. Examiner has a relatively high allowance rate (84%); +17.0% interview lift. A written response may suffice.

Based on 953 resolved cases, 2023–2026

Examiner Intelligence

BHATIA, ANSHU View full profile →

Grants 84% — above average

Career Allowance Rate

803 granted / 953 resolved

+19.3% vs TC avg

Strong +17% interview lift

Without

With

+17.0%

Interview Lift

resolved cases with interview

Typical timeline

2y 9m

Avg Prosecution

43 currently pending

Career history

983

Total Applications

across all art units

Statute-Specific Performance

§101

0.8%

-39.2% vs TC avg

§103

72.4%

+32.4% vs TC avg

§102

10.4%

-29.6% vs TC avg

§112

11.3%

-28.7% vs TC avg

Black line = Tech Center average estimate • Based on career data from 953 resolved cases

Prosecution Timeline

Dec 04, 2023

Application Filed

Jun 02, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/084,794

Patent 12678756

Mixing Device for Producing a Powder Mixture

3y 6m to grant Granted Jul 14, 2026

18/137,558

Patent 12677992

MULTI-POSITION BLENDER

3y 2m to grant Granted Jul 14, 2026

18/264,601

Patent 12678754

DEVICE AND METHOD FOR MONITORING A MIXING PROCESS

2y 11m to grant Granted Jul 14, 2026

18/546,612

Patent 12678751

STATIC MIXER RESISTANT TO HEAT, CORROSION AND DISSOLUTION

2y 11m to grant Granted Jul 14, 2026

17/867,732

Patent 12667819

ROCKER-STYLE LIQUID TREATMENT TANKS WITH INSTRUMENTATION

3y 11m 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.

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Prosecution Projections

1-2

Expected OA Rounds

84%

Grant Probability

99%

With Interview (+17.0%)

2y 9m (~1m remaining)

Median Time to Grant

Low

PTA Risk

Based on 953 resolved cases by this examiner. Grant probability derived from career allowance rate.