Enhancement of NMR and MRI in the presence of hyperpolarized noble gases
Alexander Pines, Thomas Budinger, Gil Navon, Yi-Qiao Song, Stephan Appelt, Angelo Bifone, Rebecca Taylor, Boyd Goodson, Roberto Seydoux, Toomas Room and Tanja Pietrass
U.S. Patent 6,818,202. November 2004

Enhancement of NMR and MRI in the presence of hyperpolarized noble gases
Alexander Pines, Thomas Budinger, Gil Navon, Yi-Qiao Song, Stephan Appelt, Angelo Bifone, Rebecca Taylor, Boyd Goodson, Roberto Seydoux, Toomas Room and Tanja Pietrass
U.S. Patent 6,426,058. July 2002

Clamshell tomograph
Stephen E. Derenzo and Thomas F. Budinger
U.S. Patent 4,473,749. September 1984