Examiner Jonathan D. Mahlum

Examiner Jonathan D. Mahlum appears to be about average relative to their peer examiners. Their lifetime grant ratio is 8.2%, they average 1.33 office actions per granted patent, and their rejection profile leans toward §103.

Difficulty vs AU About Average

Difficulty vs Group About Average

Difficulty vs TC About Average

Difficulty vs USPTO About Average

Average OA / Grant 1.33

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Examiner Details

Observed Examiner Years: 3 years (2024-2026)
Phone: (703) 756-4691
Predicted Supervisor: Andrew Kosar
Supervisor Phone: (571) 272-0913
Tech Center: 1600 - Biotechnology and Organic
Group: 1620 - Biomedicinal Chemistry

Metrics

Applications Evaluated: 73
Granted Applications: 6
Non-Granted Applications: 67
Avg OA / Grant: 1.33
Last OA Observed: March 2026 (0 months ago)
Art Units Seen: 1625
Work Groups Seen: 1620 - Biomedicinal Chemistry

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	8.2%	1.33
Art Unit	30	57.0%	1.54
Group	248	48.3%	1.76
Tech Center	1,349	39.5%	2.02
USPTO	16,116	54.8%	1.98

Grant Timeline

Shaded region marks the last two observed years, where grant outcomes may lag due to recency.

Year	Applications	Granted	Grant Rate
No observed data before 2024; examiner may not yet have been active in the available dataset.
2024	6	4	66.7%
2025	40	2	5.0%
2026	27	0	0.0%

6 family-cache-validated grants; 0 OA-only grant signals.

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	72	1.4%	18.1%	45.8%	1.4%
2	30	0.0%	20.0%	43.3%	0.0%
3	12	0.0%	8.3%	41.7%	8.3%
4	2	0.0%	0.0%	50.0%	0.0%

§ 101 Yearly Trend

2024: AI Examples

2025: Aug. Memo

5.9%

2024

0.0%

2025

0.0%

2026

Each bar shows the share of this examiner's observed office actions in that year that included a § 101 rejection.