Lloyd C. Knox

Filtering apparatus and method of making it

Drill pipe installed large diameter casing cementing apparatus and method therefor

System for inflating packers and placing grout through one line

Flow control float collar

Retrievable plug for offshore platforms having shear type retaining means

Platform leg plug

Insertion type cementing baffle

Remote fluid transfer system and method for sub-sea baseplates and templates

Pile wiper seal

Inflation and grout system