Inventor
BOOKWALTER JOHN R
US22 patents
⚠️ This page may combine multiple inventors who share the name “BOOKWALTER JOHN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CODMAN & SHURTLEFF
8 patentsUS6241659B1Jun 5, 2001
Surgical retractor assembly with controlled rotation
CODMAN & SHURTLEFF99 citations95
US5375481ADec 27, 1994
Multi-position ratchet mechanism
CODMAN & SHURTLEFF120 citations95
US4254763AMar 10, 1981
Surgical retractor assembly
CODMAN & SHURTLEFF329 citations95
US6530883B2Mar 11, 2003
Surgical retractor assembly
CODMAN & SHURTLEFF54 citations94
US4467791AAug 28, 1984
Surgical retractor holder
CODMAN & SHURTLEFF61 citations94
US4424724AJan 10, 1984
Multi-position ratchet mechanism
CODMAN & SHURTLEFF93 citations94
US4421108ADec 20, 1983
Surgical retractor holder
CODMAN & SHURTLEFF88 citations94
US6620097B1Sep 16, 2003
Three-dimensional tilt ratchet mechanism
CODMAN & SHURTLEFF19 citations76
BOOKWALTER JOHN R
5 patentsUS4926877AMay 22, 1990
Biopsy needle with completely closable cutting end bore
BOOKWALTER JOHN R180 citations98
US5365921ANov 22, 1994
Flip-up sternal retractor
BOOKWALTER JOHN R108 citations94
US5320444AJun 14, 1994
Enclosed surgical apparatus clamp
BOOKWALTER JOHN R66 citations94
US5356100AOct 18, 1994
Sliding-fit operating table stabilizing post and rack
BOOKWALTER JOHN R11 citations71
US5320314AJun 14, 1994
Built-in enclosed stabilizer post operating table clamp
BOOKWALTER JOHN R17 citations71
FLEXBAR MACHINE CORP
5 patentsUS6808493B1Oct 26, 2004
Adjustable ratchet retractor support apparatus
FLEXBAR MACHINE CORP79 citations94
USD389913SJan 27, 1998
Combined lap aroscopic tool holder and positioner
FLEXBAR MACHINE CORP18 citations92
USD389242SJan 13, 1998
Combined laphroscopic tool holder and positioner
FLEXBAR MACHINE CORP21 citations92
USD349573SAug 9, 1994
Quick-lock holder for laparoscopic instrument
FLEXBAR MACHINE CORP29 citations92
USD388515SDec 30, 1997
Combined laparoscopic tool holder and positioner
FLEXBAR MACHINE CORP16 citations73