Examiner Examiner Cheng-Yuan Tseng

Examiner Examiner Cheng-Yuan Tseng appears to be about average relative to their peer examiners. Their lifetime grant ratio is 5.0%, they average 1.00 office actions per granted patent, and their rejection profile is dominated by §103.

Difficulty vs AU About Average

Difficulty vs Group About Average

Difficulty vs TC About Average

Difficulty vs USPTO About Average

Average OA / Grant 1.00

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Examiner Details

Observed Examiner Years: 18 years (2009-2026)
Phone: (571) 272-9772
Predicted Supervisor: N/A
Supervisor Phone: N/A
Tech Center: 2100 - Computer Architecture Software and Information Security
Group: 2180 - Computer Architecture, I/O, Modeling and Simulation

Metrics

Applications Evaluated: 20
Granted Applications: 1
Non-Granted Applications: 19
Avg OA / Grant: 1.00
Last OA Observed: March 2026 (3 months ago)
Art Units Seen: 2184
Work Groups Seen: 2180 - Computer Architecture, I/O, Modeling and Simulation

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	5.0%	1.00
Art Unit	22	68.0%	2.01
Group	169	56.0%	1.88
Tech Center	1,706	55.9%	2.19
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 2009; examiner may not yet have been active in the available dataset.
2009	1	1	100.0%
2010	2	0	0.0%
2011	2	0	0.0%
2012	2	0	0.0%
No observed data for 2013.
2014	9	0	0.0%
2015	3	0	0.0%
No observed data for 2016-2025.
2026	1	0	0.0%

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

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	19	0.0%	31.6%	63.2%	5.3%
2	13	0.0%	30.8%	61.5%	7.7%
3	7	0.0%	14.3%	71.4%	0.0%
4	4	0.0%	0.0%	75.0%	0.0%
5	2	0.0%	0.0%	100.0%	0.0%
6	1	0.0%	0.0%	100.0%	0.0%
7	1	0.0%	0.0%	100.0%	0.0%