Prosecution Insights
Last updated: July 17, 2026
Application No. 18/851,756

GLASS FORMING APPARATUS AND METHOD FOR FORMING A GLASS RIBBON

Non-Final OA
Filed
Sep 27, 2024
Priority
Apr 29, 2022 — provisional 63/336,571 +1 more
Examiner
DEHGHAN, QUEENIE S
Art Unit
1741
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Corning Incorporated
OA Round
1 (Non-Final)
62%
Grant Probability
Moderate
1-2
OA Rounds
1y 8m
Est. Remaining
73%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
528 granted / 852 resolved
-3.0% vs TC avg
Moderate +11% lift
Without
With
+10.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
47 currently pending
Career history
904
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
83.6%
+43.6% vs TC avg
§102
2.0%
-38.0% vs TC avg
§112
2.6%
-37.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 852 resolved cases

Prosecution Timeline

Sep 27, 2024
Application Filed
Jun 01, 2026
Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12662418
ANNULAR GLASS PLATE, METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK, GLASS SUBSTRATE FOR MAGNETIC DISK, AND MAGNETIC DISK
2y 6m to grant Granted Jun 23, 2026
Patent 12643809
GLASS PRODUCT FORMING MOLD
3y 11m to grant Granted Jun 02, 2026
Patent 12637380
MOLTEN GLASS TRANSPORTER, TRANSPORT CUP, ENDCAP, AND METHODS
3y 3m to grant Granted May 26, 2026
Patent 12630459
CLEANING STEP TO REMOVE METALS OR METAL OXIDES FROM POROUS GLASS BODY
2y 1m to grant Granted May 19, 2026
Patent 12623951
METHOD OF MANUFACTURING AN OPTICAL FIBER AND PRODUCTION SYSTEM THEREFOR
3y 8m to grant Granted May 12, 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
62%
Grant Probability
73%
With Interview (+10.7%)
3y 5m (~1y 8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 852 resolved cases by this examiner. Grant probability derived from career allowance rate.

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