Halliburton disputes patents  

HOUSTON-BASED drilling service provider Halliburton has taken oilfield services company Schlumberger to task over patents.

Halliburton disputes patents   Halliburton disputes patents   Halliburton disputes patents   Halliburton disputes patents   Halliburton disputes patents  

Halliburton takes Schlumberger to US patent office

Halliburton wants the US Patent and Trademark Office to stop some of Schlumberger's fracking patents, as it believes they are not unique inventions.