Steven E. Buchanan has been granted 13 US patents while listed as an inventor at Schlumberger Technology . The first was granted in 2004 and the most recent in October 2025. Steven E. Buchanan ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Steven E. Buchanan in Pearland, TX, US.
Patents per Year Patents granted per year, 2004 to 2019 Bar chart with a peak of 2 patents in 2012. peak 2 2004: 1 patents 2004 2005: 1 patents 2005 2012: 2 patents 2012 2013: 2 patents 2013 2014: 1 patents 2014 2015: 1 patents 2015 2016: 2 patents 2016 2019: 2 patents 2019
Issued Patents All Time
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Showing 1–13 of 13 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12442276
Redundant trigger system
Maria Tafur , Bo-Lung Chen , Yann Dufour , Brian W. Walther , Brad Swenson
2025-10-14
10316654
Coring tools and related methods
Barry Moon , Vincent Jeffrey Pisio
2019-06-11
$14,239,000
10301937
Coring Apparatus and methods to use the same
Lennox Reid , Rachel Lavaure
2019-05-28
$17,422,000
9447683
Coring apparatus and methods to use the same
Lennox Reid , Rachel Lavaure
2016-09-20
$61,657,000
9410423
Coring tools and related methods
Barry Moon , Vincent Jeffrey Pisio
2016-08-09
$58,026,000
9097102
Downhole coring tools and methods of coring
Richard D. Ward , Mark Milkovisch , Warren Askew , Gokhan Erol , Bo Yang +2 more
2015-08-04
$46,029,000
8752652
Coring apparatus and methods to use the same
Lennox Reid , Rachel Lavaure
2014-06-17
$34,969,000
8613330
Coring tools and related methods
Barry Moon , Vincent Jeffrey Pisio
2013-12-24
$38,306,000
8550184
Formation coring apparatus and methods
Julian Pop , Carsten Sonne , Gokhan Erol
2013-10-08
$35,598,000
8292004
Downhole marking apparatus and methods
Adam Walkingshaw , Alex Slocum , Gokhan Erol
2012-10-23
$47,982,000
8210284
Coring apparatus and methods to use the same
Lennox Reid , Rachel Lavaure
2012-07-03
$56,774,000
6863124
Sealed ESP motor system
Grigory L. Araux
2005-03-08
$42,055,000
6811382
Integrated pumping system for use in pumping a variety of fluids
Grigory Arauz , Kenneth L. Havlinek , Ashley C. Kishino , Lawrence C. Lee , W. Keith Russell +2 more
2004-11-02
$189,612,000