Chris E. Johnson
31Patents
25h-index
34Co-inventors
85Inventor score
Filing activity: Jan 31, 1995 → Aug 25, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6280442A | Multi-axial bone screw assembly | Human Necessities | 810 | Expired |
| US6660004B2 | Multi-axial bone screw assembly | Human Necessities | 611 | Expired |
| US5776200A | Tibial trial prosthesis and bone preparation system | Human Necessities | 490 | Expired |
| US5702464A | Modular trial tibial insert | Human Necessities | 389 | Expired |
| US6280445A | Multi-axial bone anchor system | Human Necessities | 312 | Expired |
| US6689133B2 | Multi-axial bone anchor system | Emerging Cross-Sectional Technologies | 269 | Expired |
| US5683397A | Distal femoral cutting guide apparatus for use in knee joint replacement surgery | Human Necessities | 241 | Expired |
| US5683469A | Tibial trial prosthesis and bone preparation system | Human Necessities | 240 | Expired |
| US6315779A | Multi-axial bone anchor system | Emerging Cross-Sectional Technologies | 229 | Expired |
| US6858031B2 | Multi-axial bone anchor system | Human Necessities | 200 | Expired |
| US5575793A | Patella clamp apparatus | Human Necessities | 185 | Expired |
| US5667511A | Tibial resection instrumentation and surgical method | Human Necessities | 168 | Expired |
| US5609641A | Tibial prosthesis | Human Necessities | 162 | Expired |
| US7708762B2 | Systems, devices and methods for stabilization of the spinal column | Human Necessities | 161 | Active |
| US5578039A | Tibial resection instrumentation and surgical method | Human Necessities | 148 | Expired |
| US5879393A | Trial femoral prosthesis for use in knee joint replacement surgery | Human Necessities | 128 | Expired |
| US7727261B2 | Multi-axial bone screw assembly | Human Necessities | 127 | Expired |
| US5628749A | Tibial resection instrumentation and surgical method | Human Necessities | 103 | Expired |
| US5683470A | Tibial trial prosthesis and bone preparation system | Human Necessities | 87 | Expired |
| US8075599B2 | Adjustable bone anchor assembly | Human Necessities | 78 | Active |
| US5609642A | Tibial trial prosthesis and bone preparation system | Human Necessities | 73 | Expired |
| US7618424B2 | Orthopedic instrument | Human Necessities | 66 | Expired |
| US7252670B2 | Multi-axial bone anchor system | Emerging Cross-Sectional Technologies | 57 | Expired |
| US8414617B2 | Multi axial cross link connector system for spinal implants | Human Necessities | 48 | Active |
| US8066743B2 | Multi-axial, cross-link connector system for spinal implants | Human Necessities | 31 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.