More than 4 scientists, actually. In the acknowledgements section of the PDF file there also are:

David Bianchini M.Sc.
Prof. Ennio Bonetti (Bologna University)
Pierre Clauzon, M.Eng. (CNAM-CEA Paris)
Prof. Loris Ferrari (Bologna University)
Laura Patrizii, Ph.D. (INFN)
Prof. Em. Sven Kullander and Prof. Björn Gålnander (Uppsala University)
Prof. Em. Sergio Focardi (Bologna University)
Prof. Em. Hidetsugu Ikegami (Osaka University)

And also:
ELFORSK AB, for the Swedish participation in the E-Cat test experiment

Which looks like it's a swedish power company: [link to www.elforsk.se]




Unless they're all (every single name) in the scam or deluded, it seems there might be something here. I didn't really expect this.