DW

David Welshans

HS Halliburton Energy Services: 8 patents #821 of 4,711Top 20%
📍 Damon, TX: #3 of 13 inventorsTop 25%
🗺 Texas: #18,864 of 125,132 inventorsTop 20%
Overall (All Time): #642,391 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9598956 Systems and methods of a sample bottle assembly Kristopher V. Sherrill, Clive D. Menezes 2017-03-21
9068405 Systems and methods of a sample bottle assembly Kristopher V. Sherrill, Clive D. Menezes 2015-06-30
7966875 Methods and apparatus for measuring formation properties Mark A. Proett, James M. Fogal, James H. Dudley, Laban M. Marsh, Jean Michel Beique +5 more 2011-06-28
7938199 Measurement while drilling tool with interconnect assembly Kristopher V. Sherrill 2011-05-10
7395879 MWD formation tester Pedro R. Segura, Mark A. Sitka, Gregory N. Gilbert, Preston Weintraub, Tony Vu +3 more 2008-07-08
7243537 Methods for measuring a formation supercharge pressure Mark A. Proett, Wilson Chung-Ling Chin, Jean Michel Beique, John Hardin, James M. Fogal +1 more 2007-07-17
7216533 Methods for using a formation tester Malcolm Douglas McGregor, Gregory N. Gilbert, Mark A. Proett, James M. Fogal, Glenn C. Gray +4 more 2007-05-15
7204309 MWD formation tester Pedro R. Segura, Mark A. Sitka, Gregory N. Gilbert, Preston Weintraub, Tony Vu +3 more 2007-04-17