Conroe, Texas
United States
5
2012-02-02
The entities that hold a legal rights for patent applications filed by inventor Walzel Rodney B.:
Rodney B. Walzel from Conroe, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Drilling apparatus with reduced exposure of cutters and methods of drilling
#2 | 2011-05-19Drilling apparatus with reduced exposure of cutters and methods of drilling
#3 | 2006-12-14Drilling apparatus with reduced exposure of cutters and methods of drilling
#4 | 2005-12-29Drill bits with reduced exposure of cutters
#5 | 2005-08-30Drill bits with reduced exposure of cutters
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