Prosecution Insights
Last updated: July 17, 2026
Application No. 18/561,506

EGFR TARGETING FC ANTIGEN BINDING FRAGMENT-DRUG CONJUGATES

Non-Final OA
Filed
Nov 16, 2023
Priority
May 25, 2021 — EU 21175808.1 +1 more
Examiner
CHASE, CAROL ANN
Art Unit
1646
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Merck Patent GmbH
OA Round
1 (Non-Final)
45%
Grant Probability
Moderate
1-2
OA Rounds
10m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 45% of resolved cases
45%
Career Allowance Rate
26 granted / 58 resolved
-15.2% vs TC avg
Strong +84% interview lift
Without
With
+84.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
32 currently pending
Career history
91
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
37.9%
-2.1% vs TC avg
§102
3.7%
-36.3% vs TC avg
§112
11.8%
-28.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 58 resolved cases

Prosecution Timeline

Nov 16, 2023
Application Filed
Apr 20, 2026
Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12577287
T CELL RECEPTORS AND METHODS OF USE THEREOF
4y 5m to grant Granted Mar 17, 2026
Patent 12570715
T CELL RECEPTORS AND METHODS OF USE THEREOF
4y 1m to grant Granted Mar 10, 2026
Patent 12559535
METHOD FOR THE IN VITRO DIFFERENTIATION AND MATURATION OF DENDRITIC CELLS FOR THERAPEUTIC USE
5y 2m to grant Granted Feb 24, 2026
Patent 12552851
T CELL RECEPTORS WITH VGLL1 SPECIFICITY AND USES THEREOF
3y 2m to grant Granted Feb 17, 2026
Patent 12527862
BACTERICIDAL/PERMEABILITY INCREASING PROTEIN FOR USE IN A METHOD OF IMMUNIZATION, PREFERABLY AS AN ADJUVANT IN A METHOD OF VACCINATION
5y 2m to grant Granted Jan 20, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
45%
Grant Probability
99%
With Interview (+84.0%)
3y 6m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 58 resolved cases by this examiner. Grant probability derived from career allowance rate.

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