Inventor
BURLET DONALD LEONARD
CA8 patents
⚠️ This page may combine multiple inventors who share the name “BURLET DONALD LEONARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DRECO ENERGY SERVICES ULC
5 patentsUS10293854B2May 21, 2019
Movable rig and steering system
DRECO ENERGY SERVICES ULC5 citations79
US11021186B2Jun 1, 2021
Movable rig and steering system
DRECO ENERGY SERVICES ULC3 citations68
US10471986B2Nov 12, 2019
Movable rig and steering system
DRECO ENERGY SERVICES ULC5 citations68
US9458675B2Oct 4, 2016
Method for assembling a drilling rig structure
DRECO ENERGY SERVICES ULC2 citations61
US10094136B2Oct 9, 2018
Drilling rig system with self-elevating drill floor
DRECO ENERGY SERVICES ULC1 citations51
NAT OILWELL VARCO LP
3 patentsUS9091126B2Jul 28, 2015
Mobile drilling rig with telescoping substructure boxes
NAT OILWELL VARCO LP54 citations96
US9366053B2Jun 14, 2016
Mobile drilling rig with telescoping substructure boxes
NAT OILWELL VARCO LP22 citations91
US9869109B2Jan 16, 2018
Drilling rig mast erection system
NAT OILWELL VARCO LP2 citations71