BibTex format
@misc{Caudwell:2007,
author = {Caudwell, D and Goodwin, ARH and Trusler, JPM and Frels, MW and Hsu, K and Brown, JW and Pop, JJ and Hill, BM and Kurkjian, AL},
title = {Apparatus and method for formation evaluation},
type = {Patent},
year = {2007}
}