Inventor

VAN DRENTHAM-SUSMAN HECTOR F A

GB3 patents

Patents

3 patents

US6854953B2Feb 15, 2005

Speed governor

ROTECH HOLDINGS LTD58 citations92

US6527513B1Mar 4, 2003

Turbine for down-hole drilling

ROTECH HOLDINGS LTD44 citations89

US6581690B2Jun 24, 2003

Window cutting tool for well casing

ROTECH HOLDINGS LTD13 citations81