Last updated: July 17, 2026

Application No. 18/481,918

METHOD OF PREPARING LITHIUM SALT OF CARBOXYMETHYL CELLULOSE AND RECHARGEABLE LITHIUM BATTERY COMPRISING LITHIUM SALT OF CARBOXYMETHYL CELLULOSE PREPARED BY SAME

Non-Final OA

Filed

Oct 05, 2023

Priority

Dec 16, 2022 — RE 10-2022-0177250

Examiner

ESSEX, STEPHAN J

Art Unit

1727

Tech Center

1700 — Chemical & Materials Engineering

Assignee

Samsung SDI Co., Ltd.

OA Round

1 (Non-Final)

Interview Optional

— -16.3% interview lift. Interview already conducted in this application's prosecution history. This examiner has a 66% grant rate with -16.3% interview lift. Since an interview has already been tried, recommend written response with narrowed claims based on precedent claim evolution patterns.

Based on 692 resolved cases, 2023–2026

Examiner Intelligence

ESSEX, STEPHAN J View full profile →

Grants 66% — above average

Career Allowance Rate

455 granted / 692 resolved

+0.8% vs TC avg

Minimal -16% lift

Without

With

+-16.3%

Interview Lift

resolved cases with interview

Typical timeline

3y 8m

Avg Prosecution

19 currently pending

Career history

718

Total Applications

across all art units

Statute-Specific Performance

§101

0.3%

-39.7% vs TC avg

§103

87.5%

+47.5% vs TC avg

§102

5.5%

-34.5% vs TC avg

§112

2.9%

-37.1% vs TC avg

Black line = Tech Center average estimate • Based on career data from 692 resolved cases

Prosecution Timeline

Oct 05, 2023

Application Filed

Apr 07, 2026

Non-Final Rejection mailed

Jul 06, 2026

Interview Requested

Jul 14, 2026

Applicant Interview (Telephonic)

Jul 14, 2026

Examiner Interview Summary

Precedent Cases

Applications granted by this same examiner with similar technology

18/815,861

Patent 12683160

OLIVINE COMPOSITE CATHODE MATERIAL, PREPARATION METHOD AND APPLICATION THEREOF, AND LITHIUM-ION BATTERY

1y 10m to grant Granted Jul 14, 2026

18/554,704

Patent 12676327

METHOD FOR OPERATING A FUEL CELL SYSTEM, AND CONTROL DEVICE

2y 9m to grant Granted Jul 07, 2026

17/528,719

Patent 12620628

ALCOHOL-BASED ELECTROLYTES FOR HIGHLY REVERSIBLE ZN METAL BATTERIES

4y 5m to grant Granted May 05, 2026

17/888,613

Patent 12603296

CLAD CURRENT COLLECTORS INCLUDING THERMAL INTERFACE LAYER FOR BIPOLAR SOLID-STATE BATTERIES

3y 8m to grant Granted Apr 14, 2026

18/233,042

Patent 12603304

FUEL CELL AND MOBILE UNIT

2y 8m to grant Granted Apr 14, 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

66%

Grant Probability

50%

With Interview (-16.3%)

3y 8m (~11m remaining)

Median Time to Grant

Low

PTA Risk

Based on 692 resolved cases by this examiner. Grant probability derived from career allowance rate.