Particle Drilling Technologies, Inc., a development stage company, engages in the development of proprietary drilling system technology in the United States. Its technology is designed to increase the rate-of-penetration in the drilling process, primarily in hard rock drilling environments. This system is designed to entrain, circulate, and recover the particles in the mud system without allowing the particles to circulate through the rig pumps. The company intends to develop and exploit its technology by commercializing the proprietary drilling system in the oil and gas industry. Particle Drilling Technologies was founded in 2002 and is based in Houston, Texas.