Assignee
HILTON & CHRIS ENTERPRISES
US·2 granted patents·13 citations·filing 1991–1991
Technology mixE21B2
Top patents by PatentIndex Score
2 records- 0124US5158137ARetrievable oil well capping deviceHILTON & CHRIS ENTERPRISES·Filed 1991·Granted Oct 27, 1992·8 cites·30 claims
- 0220US5146995AOil well fire extinguisher having upper and lower external flame retardant-dispersing ringsHILTON & CHRIS ENTERPRISES·Filed 1991·Granted Sep 15, 1992·5 cites·22 claims
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