Inventor
PLEASANTS CHARLES W
US17 patents
⚠️ This page may combine multiple inventors who share the name “PLEASANTS CHARLES W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OTIS ENG CO
7 patentsUS5090481AFeb 25, 1992
Fluid flow control apparatus, shifting tool and method for oil and gas wells
OTIS ENG CO69 citations94
US5146984ASep 15, 1992
Emergency release device for connecting between tubular members in oil and gas wells
OTIS ENG CO31 citations92
US5040598AAug 20, 1991
Pulling tool for use with reeled tubing and method for operating tools from wellbores
OTIS ENG CO28 citations92
US5146994ASep 15, 1992
Packing assembly for use with reeled tubing and method of operating and removing same
OTIS ENG CO41 citations90
US5007479AApr 16, 1991
Hydraulic up-down well jar and method of operating same
OTIS ENG CO38 citations89
US5012871AMay 7, 1991
Fluid flow control system, assembly and method for oil and gas wells
OTIS ENG CO40 citations85
US5000265AMar 19, 1991
Packing assembly for use with reeled tubing and method of operating and removing same
OTIS ENG CO20 citations80