Inventor
CHANG JOSEPH J
US22 patents
⚠️ This page may combine multiple inventors who share the name “CHANG JOSEPH J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ETHICON INC
6 patentsUS6322537B1Nov 27, 2001
Safety intravenous catheter
ETHICON INC169 citations99
US6558355B1May 6, 2003
Flushable guidewire device
ETHICON INC95 citations98
US6524277B1Feb 25, 2003
Method and apparatus for an intravascular device showing flashback
ETHICON INC103 citations98
US6280424B1Aug 28, 2001
Apparatus and method for using a needle in an intravascular assembly
ETHICON INC61 citations93
US6210379B1Apr 3, 2001
Needle assembly having an elongated blunting device which allows for venting of air
ETHICON INC9 citations69
US6235005B1May 22, 2001
Positive engagement-disengagement catheter sleeve
ETHICON INC10 citations67
JOHNSON & JOHNSON MEDICAL
6 patentsUS5830189ANov 3, 1998
Catheter hub to nose engagement
JOHNSON & JOHNSON MEDICAL128 citations98
US5685860ANov 11, 1997
Self-capping needle assembly
JOHNSON & JOHNSON MEDICAL131 citations95
US5569202AOct 29, 1996
Catheter needle tip protector
JOHNSON & JOHNSON MEDICAL98 citations94
US5683365ANov 4, 1997
Tip protection device
JOHNSON & JOHNSON MEDICAL97 citations93
US5736085AApr 7, 1998
Catheter beveling and die cut process
JOHNSON & JOHNSON MEDICAL28 citations91
US5843356ADec 1, 1998
Catheter tip mold and cut process
JOHNSON & JOHNSON MEDICAL20 citations89
CRITIKON INC
5 patentsUS4917671AApr 17, 1990
Flash plug for I.V. catheters
CRITIKON INC162 citations99
US5092845AMar 3, 1992
Catheter with needle gasket
CRITIKON INC128 citations98
US5419766AMay 30, 1995
Catheter with stick protection
CRITIKON INC1,456 citations97
US5000740AMar 19, 1991
Catheter with needle guard
CRITIKON INC200 citations96
US4499901AFeb 19, 1985
Retreated sensing electrode
CRITIKON INC6 citations63