Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Automatic cement mixing and density simulator and control system and equipment for oil well cementing Image Number 6 for United States Patent #5571281. A cement mixing and slurry density control system utilizes an improved eductor mixer for particular use in a cementing process for an oil or gas well.       Recently Added Patents Cover Support stand Cross groove type constant velocity joint Wrist joint for positioning a test head Method and apparatus for providing portioned web pages in a graphical user interface Optical printers Bed   Randomly Featured Patents Diamond having multiple coatings and methods for their manufacture Atraumatic circumcision apparatus and method of using same Pressing tool Semiconductor timer Low-compliance expandable medical device Piston pin assembly Tank structure Portable telephone Parking assistance system for vehicles and corresponding method Dynamic escrow type detection system © 2006-2008 PatentGenius. All Rights Reserved.