Prosecution Insights
Last updated: July 05, 2026
Application No. 18/637,674

AIR PURIFIER

Non-Final OA
Filed
Apr 17, 2024
Priority
Nov 27, 2023 — RE 10-2023-0167149
Examiner
GITMAN, GABRIEL E
Art Unit
1772
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Samsung Electronics Co., Ltd.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
347 granted / 456 resolved
+11.1% vs TC avg
Strong +20% interview lift
Without
With
+20.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
18 currently pending
Career history
472
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
55.6%
+15.6% vs TC avg
§102
2.3%
-37.7% vs TC avg
§112
34.3%
-5.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 456 resolved cases

Prosecution Timeline

Apr 17, 2024
Application Filed
Apr 23, 2026
Non-Final Rejection mailed
Jun 11, 2026
Interview Requested
Jun 17, 2026
Examiner Interview Summary
Jun 17, 2026
Applicant Interview (Telephonic)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12667143
MULTIFUNCTIONAL FILTER MATERIALS
3y 7m to grant Granted Jun 30, 2026
Patent 12661603
SYSTEM AND METHOD FOR IMPROVING WATER QUALITY OF DEHYDRATION TOWER IN PURIFIED TEREPHTHALIC ACID DEVICE
2y 11m to grant Granted Jun 23, 2026
Patent 12661611
SORPTION FILTER DEVICE
2y 10m to grant Granted Jun 23, 2026
Patent 12654111
SYSTEM FOR DESALINATING SALTWATER
10y 5m to grant Granted Jun 16, 2026
Patent 12655022
METHOD AND DEVICE FOR WASHING AND PURIFICATION WITH LOW-TEMPERATURE METHANOL
3y 5m to grant Granted Jun 16, 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
76%
Grant Probability
96%
With Interview (+20.2%)
2y 6m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 456 resolved cases by this examiner. Grant probability derived from career allowance rate.

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