On June 21, 2013 Aisin Seiki Co., Ltd. filed IPR2013-00380 on U.S. Patent No. 7,413,048 on Weight Measuring Systems and Methods for Vehicles; IPR2013-00382  on U.S. Patent No. 7,976,060 on Seat Load or Displacement Measuring System for Occupant Restraint System … Continue reading June 21, 2013, Four New IPRs Filed