Robert Freitas is a Senior Research Fellow, one of four researchers at the nonprofit foundation Institute for Molecular Manufacturing in Palo Alto, California.
In 1977-78 Robert Freitas created the concept sentience quotient (SQ) as a way to describe the information processing rate in living organisms or computers. Freitas is authoring the multi-volume text Nanomedicine, the first book-length technical discussion of the potential medical applications of hypothetical molecular nanotechnology and medical nanorobotics. Volume I was published in October 1999 by Landes Bioscience while Freitas was a Research Fellow at the Institute for Molecular Manufacturing . He published Volume IIA in October 2003 with Landes Bioscience while serving as a research scientist at Zyvex Corp., a nanotechnology company headquartered in Richardson, Texas, during 2000-2004.
In 2010, Freitas was granted a patent for what was at the time (2004) the first patent application ever filed on diamond mechanosynthesis.