Examiner Clark A Evans

Appears inactive Last observed office action: July 2025 (8 months ago).

Examiner Clark A Evans appears to be very difficult relative to their art unit, group, tech center, and USPTO peers. Their lifetime grant ratio is 0.0% and their rejection profile is dominated by §103.

Difficulty vs AU Very Hard

Difficulty vs Group Very Hard

Difficulty vs TC Very Hard

Difficulty vs USPTO Very Hard

Average OA / Grant N/A

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Examiner Details

Observed Examiner Years: 1 years (2025-2025)
Tech Center: 1700 - Chemical and Materials Engineering
Group: 1790 - Food, Analytical Chemistry, Sterilization, Biochemistry, Electrochemistry

Metrics

Applications Evaluated: 3
Granted Applications: 0
Non-Granted Applications: 3
Avg OA / Grant: N/A
Last OA Observed: July 2025 (8 months ago)
Art Units Seen: 1797
Work Groups Seen: 1790 - Food, Analytical Chemistry, Sterilization, Biochemistry, Electrochemistry

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	0.0%	N/A
Art Unit	42	49.2%	1.93
Group	307	37.1%	2.11
Tech Center	1,713	47.3%	2.14
USPTO	16,116	54.8%	1.98

Grant Timeline

Year	Applications	Granted	Grant Rate
No observed data before 2025; examiner may not yet have been active in the available dataset.
2025	3	0	0.0%
No observed data after 2025; examiner may have gone inactive or moved out of examining work.

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

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	3	0.0%	0.0%	100.0%	0.0%
3	1	0.0%	0.0%	100.0%	0.0%