Examiner Katie Stofko

Examiner Katie Stofko appears to be about average relative to their peer examiners. Their lifetime grant ratio is 97.1%, they average 1.29 office actions per granted patent, and their rejection profile is dominated by §112 and elevated §112 usage.

Difficulty vs AU About Average

Difficulty vs Group About Average

Difficulty vs TC About Average

Difficulty vs USPTO Very Easy

Average OA / Grant 1.29

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Examiner Details

Observed Examiner Years: 15 years (2012-2026)
Phone: (571) 272-7956
Predicted Supervisor: N/A
Supervisor Phone: N/A
Tech Center: 2900 - Designs
Group: 2900-WG - 2900-WG

Metrics

Applications Evaluated: 726
Granted Applications: 705
Non-Granted Applications: 21
Avg OA / Grant: 1.29
Last OA Observed: March 2026 (1 months ago)
Art Units Seen: 2911
Work Groups Seen: 2900-WG - 2900-WG

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	97.1%	1.29
Art Unit	28	96.2%	1.23
Group	461	95.1%	1.19
Tech Center	486	94.9%	1.20
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 2012; examiner may not yet have been active in the available dataset.
2012	4	4	100.0%
2013	52	49	94.2%
2014	53	52	98.1%
2015	36	35	97.2%
2016	94	93	98.9%
2017	72	71	98.6%
2018	80	76	95.0%
2019	52	51	98.1%
2020	72	72	100.0%
2021	52	52	100.0%
2022	54	53	98.1%
2023	61	59	96.7%
2024	37	36	97.3%
2025	6	2	33.3%
2026	1	0	0.0%

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

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	726	0.0%	6.7%	2.3%	86.2%
2	178	0.0%	11.2%	5.1%	71.9%
3	26	0.0%	23.1%	11.5%	53.8%
4	6	0.0%	50.0%	16.7%	33.3%
5	1	0.0%	100.0%	0.0%	0.0%