Improved electron transfer agents in well acidizing...
Improved electron transfer system for well acidizing...
Improved electronic lock
Improved element for forming ground covering, restraining...
Improved elevated batten system
Improved elongate plastic member and method and apparatus...
Improved enhanced oil recovery
Improved exodermic deck system
Improved exodermic deck system
Improved expander tool for downhole use
Improved exterior vision panel system
Improved extrusion track for blinds
Improved fenestration and insulating construction
Improved fibrous mat and mat-faced gypsum board
Improved fire, acoustic, and thermal resistant construction
Improved fire, thermal, and/or sound resistant confined...
Improved flexible cup for downhole devices
Improved floor structure
Improved flooring panels
Improved flooring panels