Last updated: October 04, 2026

Application No. 17/420,798

PROCESS FOR PURIFYING PHYCOCYANINS

Non-Final OA

Filed

Jul 06, 2021

Priority

Jan 11, 2019 — FR 1900277 +1 more

Examiner

JONES-FOSTER, ERICA NICOLE

Art Unit

1656

Tech Center

1600 — Biotechnology & Organic Chemistry

Assignee

Fermentalg

OA Round

6 (Non-Final)

This examiner grants 48% of cases after interview

— +44.7% interview lift. A telephonic interview to clarify the technical implementation could significantly improve the outcome.

Based on 79 resolved cases, 2023–2026

Examiner Intelligence

JONES-FOSTER, ERICA NICOLE View full profile →

Grants 48% of resolved cases

Career Allowance Rate

38 granted / 79 resolved

-11.9% vs TC avg

Strong +45% interview lift

Without

With

+44.7%

Interview Lift

resolved cases with interview

Typical timeline

3y 5m

Avg Prosecution

56 currently pending

Career history

155

Total Applications

across all art units

Statute-Specific Performance

§101

7.5%

-32.5% vs TC avg

§103

39.1%

-0.9% vs TC avg

§102

20.1%

-19.9% vs TC avg

§112

22.8%

-17.2% vs TC avg

Black line = Tech Center average estimate • Based on career data from 79 resolved cases

Prosecution Timeline

Show 6 earlier events

Mar 12, 2025

Non-Final Rejection mailed

Jul 03, 2025

Response Filed

Aug 29, 2025

Non-Final Rejection mailed

Dec 23, 2025

Response Filed

Mar 18, 2026

Final Rejection mailed

Jul 20, 2026

Request for Continued Examination

Jul 21, 2026

Response after Non-Final Action

Aug 19, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

17/895,320

Patent 12643927

ENGINEERED SPIDER SILK PROTEINS AND USES THEREOF

3y 9m to grant Granted Jun 02, 2026

18/022,140

Patent 12600761

METHODS AND COMPOSITIONS FOR PURIFICATION OF TRIMERIC FUSION PROTEINS

3y 1m to grant Granted Apr 14, 2026

18/909,568

Patent 12594308

METHODS OF PREPARING A POSTBIOTIC COMPOSITION

1y 6m to grant Granted Apr 07, 2026

17/729,752

Patent 12590291

METHOD OF INDUCING EXPRESSION OF CALCIUM CHANNEL AND/OR CALCIUM PUMP, AND APPARATUS THEREFOR

3y 11m to grant Granted Mar 31, 2026

17/415,600

Patent 12583886

SLIDING CLAMP-BASED AFFINITY PURIFICATION SYSTEMS, METHODS OF MAKING AND USE THEREOF

4y 9m to grant Granted Mar 24, 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

6-7

Expected OA Rounds

48%

Grant Probability

93%

With Interview (+44.7%)

3y 5m (~0m remaining)

Median Time to Grant

High

PTA Risk

Based on 79 resolved cases by this examiner. Grant probability derived from career allowance rate.