Inventor · Castro Valley, CA, US

John A. Markwart

23Patents
16h-index
8Co-inventors
66Inventor score

Filing activity: Dec 8, 2003 → Dec 7, 2011

Most-cited inventions

PatentTitleAreaCited byStatus
US7217291B2 System and method for replacing degenerated spinal disks Human Necessities 674 Expired
US7837734B2 System and method for replacing degenerated spinal disks Human Necessities 647 Active
US7749252B2 Interspinous process implant having deployable wing and method of implantation Human Necessities 242 Active
US7931674B2 Interspinous process implant having deployable wing and method of implantation Human Necessities 142 Active
US7662187B2 Interspinous process implants and methods of use Human Necessities 82 Active
US8109972B2 Interspinous process implant having deployable wings and method of implantation Human Necessities 69 Active
US8029540B2 Inter-cervical facet implant with implantation tool Human Necessities 67 Active
US8128702B2 Interspinous process implant having deployable wings and method of implantation Human Necessities 53 Active
US7959652B2 Interspinous process implant having deployable wings and method of implantation Human Necessities 52 Active
US8048117B2 Interspinous process implant and method of implantation Human Necessities 42 Active
US8349013B2 Spine distraction implant Human Necessities 34 Active
US7909853B2 Interspinous process implant including a binder and method of implantation Human Necessities 27 Active
US8273107B2 Interspinous process implant having a thread-shaped wing and method of implantation Human Necessities 22 Active
US8007537B2 Interspinous process implants and methods of use Human Necessities 20 Active
US8425530B2 Apparatus for sizing a facet joint Human Necessities 19 Active
US8221463B2 Interspinous process implants and methods of use Human Necessities 17 Active
US8070778B2 Interspinous process implant with slide-in distraction piece and method of implantation Human Necessities 12 Active
US8012209B2 Interspinous process implant including a binder, binder aligner and method of implantation Human Necessities 10 Active
US8147548B2 Interspinous process implant having a thread-shaped wing and method of implantation Human Necessities 9 Active
US8092535B2 Interspinous process implants and methods of use Human Necessities 8 Active
US8454659B2 Interspinous process implants and methods of use Human Necessities 2 Active
US8894686B2 Interspinous process implants and methods of use Human Necessities 1 Active
US8591546B2 Interspinous process implant having a thread-shaped wing and method of implantation Human Necessities 0 Active

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