1. Mechanical monolithic horizontal sensor for low frequency seismic noise measurement
2. Tunable mechanical monolithic sensor with interferometric readout for low frequency seismic noise measurement
3. F. Barone, G. Giordano, Low frequency folded pendulum with high mechanical quality factor, and seismic sensor utilizing such a folded pendulum, (PCT), WO 2011/004413 A3 (2011), Patent Numbers: IT 1394612 (Italy), EP 2452169 (Europe), JP 5409912 (Japan), RU 2518587 (Russia), AU 2010269796 (Australia), US 8,950,263 (USA), Canada pending.
4. F. Barone, G. Giordano, F. Acernese, Low frequency folded pendulum with high mechanical quality factor in vertical configuration, and vertical seismic sensor utilizing such a folded pendulum, International application under the patent cooperation treaty, PCT WO 2012/147112 (2012), Patent Number: IT 1405600 (Italy), AU 2012247104 (Australia), Europe, Japan, Russia, USA, Canada pending.