Examiner Catherine Marie Nguyen

Examiner Catherine Marie Nguyen appears to be about average relative to their peer examiners. Their lifetime grant ratio is 19.0%, they average 1.50 office actions per granted patent, and their rejection profile is dominated by §103 and occasional §101 rejections.

Difficulty vs AU About Average

Difficulty vs Group About Average

Difficulty vs TC About Average

Difficulty vs USPTO About Average

Average OA / Grant 1.50

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Examiner Details

Observed Examiner Years: 2 years (2025-2026)
Phone: (571) 272-6160
Predicted Supervisor: Ashish Thomas
Supervisor Phone: (571) 272-0631
Tech Center: 2100 - Computer Architecture Software and Information Security
Group: 2110 - Computer Error Control, Reliability, and Control Systems

Metrics

Applications Evaluated: 21
Granted Applications: 4
Non-Granted Applications: 17
Avg OA / Grant: 1.50
Last OA Observed: March 2026 (0 months ago)
Art Units Seen: 2114
Work Groups Seen: 2110 - Computer Error Control, Reliability, and Control Systems

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	19.0%	1.50
Art Unit	23	71.6%	1.67
Group	203	68.7%	1.68
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 2025; examiner may not yet have been active in the available dataset.
2025	14	4	28.6%
2026	7	0	0.0%

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

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	21	4.8%	4.8%	66.7%	23.8%
2	8	12.5%	12.5%	50.0%	0.0%
3	2	0.0%	0.0%	100.0%	0.0%

§ 101 Yearly Trend

2025: Aug. Memo

8.3%

2025

0.0%

2026

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