Examiner Jane S. Yoon

Examiner Jane S. Yoon appears to be very easy relative to their art unit, group, tech center, and USPTO peers. Their lifetime grant ratio is 52.3%, they average 1.61 office actions per granted patent, and their rejection profile is dominated by §103 and elevated §112 usage.

Difficulty vs AU Very Easy

Difficulty vs Group Very Easy

Difficulty vs TC Very Easy

Difficulty vs USPTO About Average

Average OA / Grant 1.61

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Examiner Details

Observed Examiner Years: 18 years (2009-2026)
Phone: (571) 270-1403
Predicted Supervisor: Ian Simmons
Supervisor Phone: (571) 272-2658
Tech Center: 3700 - Mechanical Engineering, Manufacturing and Products
Group: 3760 - Refrigeration, Vaporization, Ventilation, and Combustion

Metrics

Applications Evaluated: 195
Granted Applications: 102
Non-Granted Applications: 93
Avg OA / Grant: 1.61
Last OA Observed: June 2026 (1 months ago)
Art Units Seen: 2913 , 2932 , 3765
Work Groups Seen: 3760 - Refrigeration, Vaporization, Ventilation, and Combustion

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	52.3%	1.61
Art Unit	31	47.7%	1.96
Group	380	49.8%	2.11
Tech Center	2,662	48.9%	2.01
USPTO	16,347	53.5%	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 2009; examiner may not yet have been active in the available dataset.
2009	23	4	17.4%
2010	45	10	22.2%
2011	30	13	43.3%
2012	21	9	42.9%
No observed data for 2013-2021.
2022	2	2	100.0%
2023	27	24	88.9%
2024	36	35	97.2%
2025	9	5	55.6%
2026	2	0	0.0%

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

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	195	0.0%	12.8%	53.8%	28.2%
2	79	0.0%	15.2%	65.8%	19.0%
3	29	0.0%	6.9%	82.8%	10.3%
4	8	0.0%	0.0%	100.0%	0.0%
5	1	0.0%	0.0%	100.0%	0.0%
6	1	0.0%	0.0%	100.0%	0.0%