Inventor
STAEHR LARS
DK12 patents
⚠️ This page may combine multiple inventors who share the name “STAEHR LARS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WELLTEC OILFIELD SOLUTIONS AG
8 patentsUS10443344B2Oct 15, 2019
Downhole valve system
WELLTEC OILFIELD SOLUTIONS AG7 citations83
US10711562B2Jul 14, 2020
Annular barrier with expansion unit
WELLTEC OILFIELD SOLUTIONS AG4 citations71
US10526865B2Jan 7, 2020
Annular barrier with closing mechanism
WELLTEC OILFIELD SOLUTIONS AG2 citations71
US10190386B2Jan 29, 2019
Zone isolation method and annular barrier with an anti-collapsing unit
WELLTEC OILFIELD SOLUTIONS AG1 citations59
US11473392B2Oct 18, 2022
Downhole expandable metal tubular
WELLTEC OILFIELD SOLUTIONS AG0 citations58
US10151168B2Dec 11, 2018
Downhole expandable tubular
WELLTEC OILFIELD SOLUTIONS AG1 citations51
US10711559B2Jul 14, 2020
Downhole expandable metal tubular
WELLTEC OILFIELD SOLUTIONS AG0 citations47
US10385655B2Aug 20, 2019
Downhole flow control device
WELLTEC OILFIELD SOLUTIONS AG0 citations39