Inventor · West Wareham, MA, US

Christopher Ramsay

82Patents
18h-index
84Co-inventors
87Inventor score

Filing activity: Mar 25, 2002 → Sep 28, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US8628534B2 Ultrasonic cutting device Human Necessities 180 Active
US7476240B2 Devices and methods for inserting a spinal fixation element Human Necessities 155 Expired
US7942908B2 Adjustable length implant Human Necessities 59 Active
US7918858B2 Minimally invasive bone anchor extensions Human Necessities 57 Active
US8512343B2 Methods and instruments for approximating misaligned vertebra Human Necessities 50 Active
US8137401B2 Intervertebral device having expandable endplates Human Necessities 48 Active
US7927357B2 Adjustable length implant Human Necessities 47 Active
US7918857B2 Minimally invasive bone anchor extensions Human Necessities 45 Active
US9433445B2 Bone anchors and surgical instruments with integrated guide tips Human Necessities 41 Active
US9439693B2 Steerable needle assembly for use in vertebral body augmentation Human Necessities 36 Active
US8057518B2 Spanning connector for connecting a spinal fixation element and an offset bone anchor Human Necessities 28 Active
US8821394B2 Methods and devices for tissue retraction Human Necessities 27 Active
US7892260B2 Unilateral placement Human Necessities 26 Active
US8236032B2 Spinal implant with a flexible extension element Human Necessities 24 Active
US9289249B2 Bone anchors and surgical instruments with integrated guide tips Human Necessities 22 Active
US8025682B2 Method and system for securing a rod to a bone anchor with a connector Human Necessities 21 Active
US10321939B2 Implant connectors and related methods Human Necessities 21 Active
US8900305B2 Intervertebral device having expandable endplates Human Necessities 20 Active
US9622779B2 Method and devices for a sub-splenius / supra-levator scapulae surgical access technique Human Necessities 18 Active
US10561454B2 Articulating implant connectors and related methods Human Necessities 16 Active
US9962192B2 Multipoint fixation implants Human Necessities 15 Active
US9364265B2 Spinal implant with a flexible extension element Human Necessities 15 Active
US10485596B2 Longitudinally-adjustable bone anchors and related methods Human Necessities 14 Active
US9271711B2 Methods and devices for tissue retraction Human Necessities 14 Active
US8574297B2 Intervertebral device having expandable endplates Human Necessities 13 Active

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