Inventor · Orono, MN, US

Dean Johnson

26Patents
8h-index
20Co-inventors
75Inventor score

Filing activity: May 1, 1981 → Sep 27, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US9668876B2 Expandable interbody device Human Necessities 53 Active
US8062304B2 Spinal implant distractor/inserter Human Necessities 47 Active
US10034765B2 Expandable interbody device Human Necessities 35 Active
US8454622B2 Spinal implant distractor/inserter Human Necessities 18 Active
US8864770B2 Offset opposing arm spinal implant distractor/inserter Human Necessities 17 Active
US9750616B2 Interbody fusion device Human Necessities 11 Active
US8551105B2 Spinal implant distractor/inserter Human Necessities 8 Active
US6721431B1 Prismatic loudspeaker/microphone array Electricity 8 Expired
US10646351B2 Expandable interbody device Human Necessities 7 Active
US10675156B2 Interbody fusion device Human Necessities 6 Active
US11382769B2 Spinal implant device Human Necessities 4 Active
US11351038B2 Interbody fusion device Human Necessities 2 Active
US9551578B1 Systems and methods for a ring laser gyroscope with electrically isolated dither motor Physics 1 Active
US12138613B2 Oxide-based doping of evaporable getter Performing Operations; Transporting 0 Active
US11938036B2 Expandable interbody device Human Necessities 0 Active
US9659732B2 Partially insulated cathode Electricity 0 Active
US10330477B2 Ring laser gyroscope with ion migration field reducer shield Electricity 0 Active
US11962118B2 Ultraviolet filter for ring laser gyroscope mirrors Electricity 0 Active
US11255672B2 System having an extended life high performance sensor Physics 0 Active
US10739137B2 Solid state ring laser gyroscope using rare-earth gain dopants in glassy hosts Electricity 0 Active
US12281896B2 Stabilized evaporable getter for increased handleability Electricity 0 Active
US9627166B2 Partially insulated cathode General 0 Revoked
US12318311B2 Spinal implant device Human Necessities 0 Active
US11385057B2 Extra thick ultraviolet durability coating Physics 0 Active
US4406149A Cable-bending tool Electricity 0 Expired

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