Inventor
JOHNSON CHRIS E
US26 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON CHRIS E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH & NEPHEW INC
6 patentsUS5683397ANov 4, 1997
Distal femoral cutting guide apparatus for use in knee joint replacement surgery
SMITH & NEPHEW INC327 citations99
US5879393AMar 9, 1999
Trial femoral prosthesis for use in knee joint replacement surgery
SMITH & NEPHEW INC173 citations98
US5776200AJul 7, 1998
Tibial trial prosthesis and bone preparation system
SMITH & NEPHEW INC556 citations98
US5702464ADec 30, 1997
Modular trial tibial insert
SMITH & NEPHEW INC472 citations98
US5683470ANov 4, 1997
Tibial trial prosthesis and bone preparation system
SMITH & NEPHEW INC110 citations98
US5683469ANov 4, 1997
Tibial trial prosthesis and bone preparation system
SMITH & NEPHEW INC268 citations97
SMITH & NEPHEW RICHARDS INC
6 patentsUS5609641AMar 11, 1997
Tibial prosthesis
SMITH & NEPHEW RICHARDS INC294 citations99
US5667511ASep 16, 1997
Tibial resection instrumentation and surgical method
SMITH & NEPHEW RICHARDS INC191 citations98
US5628749AMay 13, 1997
Tibial resection instrumentation and surgical method
SMITH & NEPHEW RICHARDS INC147 citations98
US5609642AMar 11, 1997
Tibial trial prosthesis and bone preparation system
SMITH & NEPHEW RICHARDS INC111 citations98
US5578039ANov 26, 1996
Tibial resection instrumentation and surgical method
SMITH & NEPHEW RICHARDS INC174 citations98
US5575793ANov 19, 1996
Patella clamp apparatus
SMITH & NEPHEW RICHARDS INC215 citations98
WARSAW ORTHOPEDIC INC
6 patentsUS7618424B2Nov 17, 2009
Orthopedic instrument
WARSAW ORTHOPEDIC INC80 citations96
US10695107B2Jun 30, 2020
Spinal implant system and methods of use
WARSAW ORTHOPEDIC INC5 citations81
US11504167B2Nov 22, 2022
Spinal implant system and methods of use
WARSAW ORTHOPEDIC INC2 citations70
US12232780B2Feb 25, 2025
Spinal implant system and methods of use
WARSAW ORTHOPEDIC INC0 citations60
US12508097B2Dec 30, 2025
Set screw with strain gauges
WARSAW ORTHOPEDIC INC0 citations49
US12514617B2Jan 6, 2026
Modular set screw design for housing microelectronics
WARSAW ORTHOPEDIC INC0 citations48
SDGI HOLDINGS INC
5 patentsUS6858031B2Feb 22, 2005
Multi-axial bone anchor system
SDGI HOLDINGS INC264 citations99
US6689133B2Feb 10, 2004
Multi-axial bone anchor system
SDGI HOLDINGS INC353 citations99
US6315779B1Nov 13, 2001
Multi-axial bone anchor system
SDGI HOLDINGS INC308 citations99
US6280445B1Aug 28, 2001
Multi-axial bone anchor system
SDGI HOLDINGS INC393 citations99
US7252670B2Aug 7, 2007
Multi-axial bone anchor system
SDGI HOLDINGS INC75 citations98