Inventor
HILL NIGEL
GB8 patents
⚠️ This page may combine multiple inventors who share the name “HILL NIGEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DOWTY MINING EQUIPMENT LTD
5 patentsUS4568222AFeb 4, 1986
Mine-roof supports
DOWTY MINING EQUIPMENT LTD9 citations71
US4037419AJul 26, 1977
Mine roof support
DOWTY MINING EQUIPMENT LTD7 citations69
US4629368ADec 16, 1986
Shield supports suitable for use in mines
DOWTY MINING EQUIPMENT LTD5 citations60
US4430026AFeb 7, 1984
Roof support suitable for use in mines
DOWTY MINING EQUIPMENT LTD5 citations58
US4609308ASep 2, 1986
Roof support suitable for use in mines
DOWTY MINING EQUIPMENT LTD3 citations57