Examiner David A. Reifsnyder

Appears inactive Last observed office action: June 2019 (81 months ago).

Examiner David A. Reifsnyder appears to be very easy relative to their art unit, group, tech center, and USPTO peers. Their lifetime grant ratio is 77.6%, they average 1.30 office actions per granted patent, and their rejection profile leans toward §103.

Difficulty vs AU Very Easy

Difficulty vs Group Very Easy

Difficulty vs TC Very Easy

Difficulty vs USPTO Very Easy

Average OA / Grant 1.30

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Examiner Details

Observed Examiner Years: 12 years (2008-2019)
Tech Center: 1700 - Chemical and Materials Engineering
Group: 1770 - Chemical Apparatus, Separation and Purification

Metrics

Applications Evaluated: 441
Granted Applications: 342
Non-Granted Applications: 99
Avg OA / Grant: 1.30
Last OA Observed: June 2019 (81 months ago)
Art Units Seen: 1776 , 1778 , 1797
Work Groups Seen: 1770 - Chemical Apparatus, Separation and Purification

1790 - Food, Analytical Chemistry, Sterilization, Biochemistry, Electrochemistry

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	77.6%	1.30
Art Unit	17	59.0%	1.78
Group	173	53.1%	1.94
Tech Center	1,713	47.3%	2.14
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	65	43	66.2%
2009	8	7	87.5%
2010	28	20	71.4%
2011	58	42	72.4%
2012	53	46	86.8%
2013	46	37	80.4%
2014	40	34	85.0%
2015	45	36	80.0%
2016	44	33	75.0%
2017	28	22	78.6%
2018	15	13	86.7%
2019	11	9	81.8%
No observed data after 2019; examiner may have gone inactive or moved out of examining work.

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

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	451	0.9%	32.4%	38.6%	17.1%
2	94	1.1%	24.5%	41.5%	23.4%
3	24	0.0%	20.8%	45.8%	29.2%
4	8	0.0%	37.5%	50.0%	0.0%
5	1	0.0%	0.0%	0.0%	100.0%
6	1	0.0%	0.0%	100.0%	0.0%
7	1	0.0%	0.0%	100.0%	0.0%

§ 101 Yearly Trend

2014: Alice

0.0%

2008

9.1%

2009

2.4%

2010

0.0%

2011

1.4%

2012

0.0%

2013

0.0%

2014

1.9%

2015

0.0%

2016

2.5%

2017

0.0%

2018

0.0%

2019

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