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Office Actions › Kerr Machine Co. › 19419603
Last updated: July 09, 2026
Application No. 19/419,603

Untitled Application

Unknown
Filed
3700
Priority
Nov 18, 2019 — provisional 62/936,789 +44 more
Examiner
LETTMAN, BRYAN MATTHEW
Art Unit
3746
Tech Center
Kerr Machine Co.
Assignee
Kerr Machine Co.
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
3y 2m
Filing → Grant
99%
With Interview

This examiner grants 64% of cases after interview

— +52.3% interview lift. A telephonic interview to clarify the technical implementation could significantly improve the outcome.
Based on 953 resolved cases, 2023–2026

Examiner Intelligence

LETTMAN, BRYAN MATTHEW View full profile →
Grants 64% of resolved cases
64%
Career Allowance Rate
615 granted / 953 resolved
+4.5% vs TC avg
Strong +52% interview lift
Without
With
+52.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
30 currently pending
Career history
989
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
86.2%
+46.2% vs TC avg
§102
4.3%
-35.7% vs TC avg
§112
7.8%
-32.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 953 resolved cases

Prosecution Timeline

3700
Application Filed
Apr 10, 2026
Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/464,715
Patent 12662999
DOWNHOLE SUCKER ROD PUMP
2y 9m to grant Granted Jun 23, 2026
18/692,682
Patent 12644440
Positive Displacement Pump
2y 2m to grant Granted Jun 02, 2026
18/575,594
Patent 12631175
METHOD FOR HEAT RECOVERY IN A COMPRESSOR AND A COMPRESSOR
2y 4m to grant Granted May 19, 2026
19/286,790
Patent 12631166
FLUID ROUTING PLUG
9m to grant Granted May 19, 2026
18/480,955
Patent 12619291
HOT PLUG REDUNDANT PUMP WITH ELECTRONICALLY CONTROLLED VALVE
2y 7m to grant Granted May 05, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

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Prosecution Projections

1-2
Expected OA Rounds
64%
Grant Probability
99%
With Interview (+52.3%)
3y 2m
Median Time to Grant
Low
PTA Risk
Based on 953 resolved cases by this examiner. Grant probability derived from career allowance rate.

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Data sourced from USPTO Patent File Wrapper (daily) and Office Action Archive (weekly). Analysis generated by IP Author.

Data: USPTO Patent File Wrapper (daily) • Office Action Archive (weekly) • 89M+ prosecution events

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