Examiner Stanley Tso

Examiner Stanley Tso appears to be about average relative to their peer examiners. Their lifetime grant ratio is 69.1%, they average 2.33 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 About Average

Difficulty vs USPTO About Average

Average OA / Grant 2.33

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Examiner Details

Observed Examiner Years: 12 years (2015-2026)
Phone: (571) 270-0723
Predicted Supervisor: Tim Thompson
Supervisor Phone: (571) 272-2342
Tech Center: 2800 - Semiconductors, Electrical and Optical Systems and Components
Group: 2840 - Electrical Circuits and Systems

Metrics

Applications Evaluated: 521
Granted Applications: 360
Non-Granted Applications: 161
Avg OA / Grant: 2.33
Last OA Observed: March 2026 (2 months ago)
Art Units Seen: 2842 , 2847
Work Groups Seen: 2840 - Electrical Circuits and Systems

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	69.1%	2.33
Art Unit	28	68.8%	1.65
Group	230	70.5%	1.61
Tech Center	2,370	64.7%	1.69
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 2015; examiner may not yet have been active in the available dataset.
2015	21	8	38.1%
2016	66	48	72.7%
2017	48	34	70.8%
2018	79	63	79.7%
2019	49	40	81.6%
2020	50	39	78.0%
2021	59	47	79.7%
2022	33	26	78.8%
2023	37	32	86.5%
2024	12	9	75.0%
2025	48	14	29.2%
2026	19	0	0.0%

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

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	519	0.0%	6.6%	91.5%	0.8%
2	402	0.0%	4.2%	93.5%	1.5%
3	117	0.0%	1.7%	96.6%	0.0%
4	78	0.0%	1.3%	97.4%	1.3%
5	28	0.0%	0.0%	100.0%	0.0%
6	18	0.0%	0.0%	100.0%	0.0%
7	9	0.0%	11.1%	88.9%	0.0%
8	4	0.0%	0.0%	100.0%	0.0%