Patents by Inventor Tinton Setiawan

Tinton Setiawan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Additive for cementing wells
    Patent number: 8470907
    Abstract: An additive based on a polyalkylenimine and a sulphonated formaldehyde-containing condensate and its use as a fluid loss additive in the cementing of wells in the mineral oil and natural gas sector is claimed. Polyethylenimine, polypropylenimine and polybutylenimine are suitable as typical representatives of the polyalkylenimines and may also be derivatised. Preferred condensates are acetone/formaldehyde resins. Those additives according to the invention which are subjected to maturing, in particular by allowing to stand, prior to their use achieve a particularly low fluid loss value.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: June 25, 2013
    Assignee: BASF SE
    Inventors: Roland Reichenbach-klinke, Tinton Setiawan, Johann Plank
  • ADDITIVE FOR CEMENTING WELLS
    Publication number: 20100317764
    Abstract: An additive based on a polyalkylenimine and a sulphonated formaldehyde-containing condensate and its use as a fluid loss additive in the cementing of wells in the mineral oil and natural gas sector is claimed. Polyethylenimine, polypropylenimine and polybutylenimine are suitable as typical representatives of the polyalkylenimines and may also be derivatised. Preferred condensates are acetone/formaldehyde resins. Those additives according to the invention which are subjected to maturing, in particular by allowing to stand, prior to their use achieve a particularly low fluid loss value.
    Type: Application
    Filed: January 19, 2009
    Publication date: December 16, 2010
    Inventors: Roland Reichenbach-klinke, Tinton Setiawan, Johann Plank