Cornwall
United Kingdom
3
2007-12-13
The entities that hold a legal rights for patent applications filed by inventor Sawdon Christopher A.:
Christopher A. Sawdon from Cornwall, GB has applied for patents for these inventions. The list has both pending applications and granted patents:
Additive for increasing the density of an oil-based fluid and fluid comprising such additive
#2 | 2007-08-09Additive for increasing the density of an oil-based fluid and fluid comprising such additive
#3 | 2006-08-24Additive for increasing the density of a fluid for casing annulus pressure
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