WB

William Barron

DP Downhole Products Plc: 8 patents #2 of 7Top 30%
DL Downhole Products Limited: 3 patents #5 of 13Top 40%
Overall (All Time): #464,321 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
8657036 Tubing shoe Ian Kirk 2014-02-25
7743829 Cement flow control tool Ian Kirk, Alistair Bertram Clark 2010-06-29
7694733 Centralizer Alistair Bertram Clark, Ian Kirk 2010-04-13
7096939 Slotted expandable centraliser Ian Kirk, Alistair Bertram Clark 2006-08-29
6845816 ADI centralizer Ian Kirk, Allstair Bertram Clark, Arron Rimmer, Barry N. Newton 2005-01-25
6830102 Centraliser Ian Kirk, Alistair Bertram Clark 2004-12-14
6659173 Downhole tool Ian Kirk, Alistair Clark 2003-12-09
6435275 Casing centralizer Ian Kirk, Alistair Bertram Clark 2002-08-20
6401820 Downhole tool Ian Kirk, Alistair Clark 2002-06-11
6006830 Casing centraliser Ian Kirk, Alistair Bertram Clark 1999-12-28
5797455 Casing centraliser Ian Kirk, Alistair Bertram Clark 1998-08-25