Examiner David G. Muller

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

Examiner David G. Muller appears to be about average relative to their peer examiners. Their lifetime grant ratio is 96.9%, they average 1.21 office actions per granted patent, and their rejection profile is dominated by §112 and elevated §112 usage.

Difficulty vs AU Very Easy

Difficulty vs Group About Average

Difficulty vs TC About Average

Difficulty vs USPTO Very Easy

Average OA / Grant 1.21

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Examiner Details

Observed Examiner Years: 18 years (2008-2025)
Tech Center: 2900 - Designs
Group: 2900-WG - 2900-WG

Metrics

Applications Evaluated: 1,130
Granted Applications: 1,095
Non-Granted Applications: 35
Avg OA / Grant: 1.21
Last OA Observed: August 2025 (8 months ago)
Art Units Seen: 2914
Work Groups Seen: 2900-WG - 2900-WG

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	96.9%	1.21
Art Unit	29	95.5%	1.22
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 2008; examiner may not yet have been active in the available dataset.
2008	2	2	100.0%
2009	1	1	100.0%
No observed data for 2010.
2011	124	120	96.8%
2012	104	99	95.2%
2013	100	98	98.0%
2014	119	110	92.4%
2015	55	51	92.7%
2016	89	89	100.0%
2017	122	118	96.7%
2018	80	78	97.5%
2019	85	84	98.8%
2020	83	82	98.8%
2021	90	90	100.0%
2022	37	37	100.0%
2023	20	20	100.0%
2024	12	11	91.7%
2025	7	5	71.4%
No observed data after 2025; examiner may have gone inactive or moved out of examining work.

1,095 family-cache-validated grants; 0 OA-only grant signals.

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	1,130	0.0%	0.4%	0.5%	93.8%
2	228	0.0%	0.9%	3.1%	91.2%
3	23	0.0%	0.0%	21.7%	73.9%
4	6	0.0%	0.0%	66.7%	33.3%
5	3	0.0%	0.0%	33.3%	0.0%