Last updated: July 17, 2026

Application No. 18/700,818

ZWITTERIONIC FUNCTIONALIZED POLY(BETA-AMINOESTER) POLYMERS AND USES THEREOF

Final Rejection

Filed

Apr 12, 2024

Priority

Oct 14, 2021 — EU 21382923.7 +1 more

Examiner

PACKARD, BENJAMIN J

Art Unit

1612

Tech Center

1600 — Biotechnology & Organic Chemistry

Assignee

Institut Químic de Sarrià

OA Round

2 (Final)

Interview Optional

— +15.5% interview lift. Examiner has a relatively high allowance rate (66%); +15.5% interview lift. A written response may suffice.

Based on 1333 resolved cases, 2023–2026

Examiner Intelligence

PACKARD, BENJAMIN J View full profile →

Grants 66% — above average

Career Allowance Rate

886 granted / 1333 resolved

+6.5% vs TC avg

Strong +16% interview lift

Without

With

+15.5%

Interview Lift

resolved cases with interview

Typical timeline

2y 11m

Avg Prosecution

49 currently pending

Career history

1378

Total Applications

across all art units

Statute-Specific Performance

§101

0.6%

-39.4% vs TC avg

§103

65.3%

+25.3% 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 1333 resolved cases

Prosecution Timeline

Apr 12, 2024

Application Filed

Feb 18, 2026

Non-Final Rejection mailed

Apr 20, 2026

Response Filed

Jun 29, 2026

Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/018,245

Patent 12673952

PROCESSES FOR PREPARING MODULATORS OF ALPHA-1 ANTITRYPSIN

3y 5m to grant Granted Jul 07, 2026

18/025,090

Patent 12673906

METHOD FOR PRODUCING RADIOACTIVE LABELED SUBSTANCE, DEVICE FOR PRODUCING RADIOACTIVE LABELED SUBSTANCE, AND METHOD FOR EVAPORATIVELY CONCENTRATING RADIOACTIVE METAL NUCLIDE

3y 4m to grant Granted Jul 07, 2026

18/241,928

Patent 12673029

NANODELIVERY SYSTEM BASED ON GLOBULIN-1 S ALLELE, PREPARATION METHOD THEREFOR AND USE THEREOF

2y 10m to grant Granted Jul 07, 2026

18/285,550

Patent 12642775

SUBSTRATE FOR DELIVERING A BIOLOGICALLY ACTIVE SUBSTANCE

2y 8m to grant Granted Jun 02, 2026

18/554,320

Patent 12635710

METHODS OF USING FORMALDEHYDE-FREE ANTIMICROBIAL COMPOSITIONS IN ANIMAL BY-PRODUCT COMPOSITIONS

2y 7m to grant Granted May 26, 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

66%

Grant Probability

82%

With Interview (+15.5%)

2y 11m (~8m remaining)

Median Time to Grant

Moderate

PTA Risk

Based on 1333 resolved cases by this examiner. Grant probability derived from career allowance rate.