from the thanks-for-the-(molecular)-memory dept.
An article in the May 2001 issue of Technology Review Magazine details a patent for a molecular electronics device granted to the well-known team from HP Laboratories: Philip Kuekes, R. Stanley Williams and UCLA chemist James Heath ("Molecular Memory," by D. Rotman). According to the article, the HP research group received an initial patent on a molecular memory device in October 2000; and "a series of related patents covering everything from molecular logic to how to chemically assemble these devices is pending." You can view the patent (U.S. Patent 6,128,214) online.
Coverage of the work by the HP Labs research team has appeared in Foresight Update 42.