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by KellDann
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Examiner Hieu T. Vo

Appears inactive Last observed office action: September 2021 (57 months ago).

Examiner Hieu T. Vo appears to be very easy relative to their art unit, group, tech center, and USPTO peers. Their lifetime grant ratio is 93.5%, they average 1.07 office actions per granted patent, and their rejection profile leans toward §102 and occasional §101 rejections.

Difficulty vs AU Very Easy
Difficulty vs Group Very Easy
Difficulty vs TC Very Easy
Difficulty vs USPTO Very Easy
Average OA / Grant 1.07
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Examiner Details

Observed Examiner Years
14 years (2008-2021)
Tech Center
3700 - Mechanical Engineering, Manufacturing and Products
Group
3740 - Thermal and Combustion Technology, Motive and Fluid Power Systems

Metrics

Applications Evaluated
214
Granted Applications
200
Non-Granted Applications
14
Avg OA / Grant
1.07
Last OA Observed
September 2021 (57 months ago)
Art Units Seen
3747
Work Groups Seen
3740 - Thermal and Combustion Technology, Motive and Fluid Power Systems

Context Comparison

Scope Examiners Lifetime Grant Ratio Avg OA / Grant
This Examiner 1 93.5% 1.07
Art Unit 54 73.2% 1.66
Group 447 58.2% 1.86
Tech Center 2,632 49.9% 2.01
USPTO 16,116 54.8% 1.98

Grant Timeline

0.0% 25.0% 50.0% 75.0% 100.0% 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021
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 15 14 93.3%
2009 30 29 96.7%
2010 25 24 96.0%
2011 20 20 100.0%
2012 16 13 81.3%
2013 13 12 92.3%
2014 15 12 80.0%
2015 14 13 92.9%
2016 7 7 100.0%
2017 10 9 90.0%
2018 2 2 100.0%
2019 8 7 87.5%
2020 33 32 97.0%
2021 6 6 100.0%
No observed data after 2021; examiner may have gone inactive or moved out of examining work.

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

Rejection Timeline

OA # Office Actions § 101 Percentage § 102 Percentage § 103 Percentage § 112 Percentage
1 214 9.3% 43.0% 8.4% 13.6%
2 15 0.0% 40.0% 13.3% 20.0%

§ 101 Yearly Trend

2014: Alice
2019: PEG
5.3%
2008
15.2%
2009
7.7%
2010
10.0%
2011
0.0%
2012
14.3%
2013
13.3%
2014
7.1%
2015
12.5%
2016
27.3%
2017
0.0%
2018
0.0%
2019
2.9%
2020
0.0%
2021

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