Examiner Youwon Kahng

Appears inactive Last observed office action: December 2018 (89 months ago).

Examiner Youwon Kahng appears to be very difficult relative to their art unit, group, tech center, and USPTO peers. Their lifetime grant ratio is 47.1%, they average 3.25 office actions per granted patent, and their rejection profile is dominated by §103.

Difficulty vs AU About Average

Difficulty vs Group Very Hard

Difficulty vs TC Very Hard

Difficulty vs USPTO Very Hard

Average OA / Grant 3.25

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Examiner Details

Observed Examiner Years: 2 years (2017-2018)
Tech Center: 3700 - Mechanical Engineering, Manufacturing and Products
Group: 3760 - Refrigeration, Vaporization, Ventilation, and Combustion

Metrics

Applications Evaluated: 17
Granted Applications: 8
Non-Granted Applications: 9
Avg OA / Grant: 3.25
Last OA Observed: December 2018 (89 months ago)
Art Units Seen: 3762 , 3769 , 3792
Work Groups Seen: 3760 - Refrigeration, Vaporization, Ventilation, and Combustion

3790 - Medical Instruments, Diagnostic Equipment, and Treatment Devices

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	47.1%	3.25
Art Unit	32	33.6%	2.26
Group	377	50.6%	2.11
Tech Center	2,632	49.9%	2.01
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 2017; examiner may not yet have been active in the available dataset.
2017	5	2	40.0%
2018	12	6	50.0%
No observed data after 2018; examiner may have gone inactive or moved out of examining work.

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

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	43	0.0%	16.3%	81.4%	0.0%
2	34	0.0%	8.8%	91.2%	0.0%
3	11	0.0%	0.0%	100.0%	0.0%
4	6	0.0%	0.0%	83.3%	16.7%
5	3	0.0%	0.0%	100.0%	0.0%
6	2	0.0%	50.0%	50.0%	0.0%
7	1	0.0%	0.0%	100.0%	0.0%
8	1	0.0%	0.0%	100.0%	0.0%