Inventor

ANKARGREN DAVID BENGT JOHAN

NO4 patents

⚠️ This page may combine multiple inventors who share the name “ANKARGREN DAVID BENGT JOHAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ANKARGREN DAVID BENGT JOHAN

2 patents

US9267340B2Feb 23, 2016

Heave compensating system

ANKARGREN DAVID BENGT JOHAN6 citations66

US9382927B2Jul 5, 2016

Apparatus and method for recuperation of hydraulic energy

ANKARGREN DAVID BENGT JOHAN1 citations45

GRANT PRIDECO INC

1 patent

US12584534B2Mar 24, 2026

System and method for improved heave compensation

GRANT PRIDECO INC0 citations39

VON DER OHE CHRISTIAN B

1 patent

US9051784B2Jun 9, 2015

Riser tensioner

VON DER OHE CHRISTIAN B0 citations31