Lake Charles, Louisiana
United States
3
2008-10-23
The entities that hold a legal rights for patent applications filed by inventor Boyd Mark Dwayne:
Mark Dwayne Boyd from Lake Charles, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Wellhead isolation tool including an abrasive cleaning ring
#2 | 2008-04-10Frac head including a mixing chamber
#3 | 2007-07-12Dual entry apparatus for a subterranean borehole
4152127 ⎘