Burn assisted fracturing of underground coal bed

Burn through resistant nonwoven mat, barrier, and insulation...

Burner for igniting an injection well

Burner systems

Bus plus

Bus stop pole with light-emitting diode panels, touch screen...

Bushing for a drilling rig

Butt connection

Butt gauges

Butt hinge with means to prevent the wear of knuckles

Butt hinges

Butt joint connector

Butt joint hanger for drywall construction

Butterfly-type shim having semi-opened bottom and double...

Button drill bit structure

Button insert for rock drill bits

Buttressed sprag plate

By-pass sub

By-pass valve mechanism and method of use hereof

Bypass diverter box for drilling mud separation unit