RT

Rory McCrae Tulloch

NL Nov Downhole Eurasia Limited: 3 patents #1 of 12Top 9%
ND National Oilwell Dht: 1 patents #2 of 9Top 25%
Overall (2018): #36,939 of 503,207Top 8%
4
Patents 2018

Issued Patents 2018

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10081984 Downhole motor, drill string provided with such a motor and method of releasing a stuck drill bit attached to such a motor 2018-09-25
10000970 Downhole drilling assembly with motor powered hammer and method of using same Alan Martyn Eddison, Alastair Henry Walter Macfarlane 2018-06-19
9970264 Downhole actuation apparatus and associated methods 2018-05-15
9909367 Downhole tool with rotational drive coupling and associated methods Alan Martyn Eddison 2018-03-06