Inventor · Madison, WI, US

Michael James Johnstone

3Patents
3h-index
8Co-inventors
43Inventor score

Filing activity: Jul 8, 2003 → Sep 15, 2012

Most-cited inventions

PatentTitleAreaCited byStatus
US8844206B2 Mobile truck-mounted performance stage on a hydraulic lift Performing Operations; Transporting 5 Active
US6938775B2 Button cell battery pack with air access channel Performing Operations; Transporting 3 Expired
USD707365S1 Truck-mounted performance stage General 3 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.