Brian C. Speirs has been granted 4 US patents while listed as an inventor at ExxonMobil . The first was granted in 2012 and the most recent in May 2017. Brian C. Speirs ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Brian C. Speirs in Calgary, AB, CA.
Patents per Year Patents granted per year, 2012 to 2017 Bar chart with a peak of 2 patents in 2012. peak 2 2012: 2 patents 2012 2016: 1 patents 2016 2017: 1 patents 2017
Issued Patents All Time
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Showing 1–4 of 4 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
9663388 Method of using a silicate-containing stream from a hydrocarbon operation or from a geothermal source to treat fluid tailings by chemically-induced micro-agglomeration Christopher Lin , Amitava Sarkar , Ren Zhu , Stuart R. D. Lunn 2017-05-30
$100,914,000
9475994 Enhancing fine capture in paraffinic froth treatment process Payman Esmaeili , Ronald D. Myers , Olusola B. Adeyinka 2016-10-25
$251,427,000
8252107 System and method for treating tailings from bitumen extraction Payman Esmaeili , Mainak Ghosh 2012-08-28
$181,740,000
8141636 Method and system integrating thermal oil recovery and bitumen mining for thermal efficiency James A. Dunn 2012-03-27
