Inventor
BARKER JOHN
GB24 patents
⚠️ This page may combine multiple inventors who share the name “BARKER JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MDC INVEST HOLDINGS INC
12 patentsUS6752798B2Jun 22, 2004
Retractable needle medical device for injecting fluid from a pre-filled cartridge
MDC INVEST HOLDINGS INC119 citations99
US6607511B2Aug 19, 2003
Medical device with safety flexible needle
MDC INVEST HOLDINGS INC196 citations99
US6039713AMar 21, 2000
Pre-filled retractable needle injection device
MDC INVEST HOLDINGS INC191 citations99
US7753887B2Jul 13, 2010
Retractable needle medical device
MDC INVEST HOLDINGS INC109 citations98
US7524306B2Apr 28, 2009
Catheter insertion device with retractable needle
MDC INVEST HOLDINGS INC68 citations98
US6921391B1Jul 26, 2005
Fluid infusion device with retractable needle
MDC INVEST HOLDINGS INC113 citations98
US7004929B2Feb 28, 2006
Safety pre-filled cartridge injector
MDC INVEST HOLDINGS INC107 citations96
US6945960B2Sep 20, 2005
Combination safety needle assembly and medical apparatus
MDC INVEST HOLDINGS INC66 citations96
US6547762B1Apr 15, 2003
Retractable needle medical device
MDC INVEST HOLDINGS INC197 citations96
US7033343B2Apr 25, 2006
Retractable needle medical device for injecting fluid from a pre-filled cartridge
MDC INVEST HOLDINGS INC60 citations95
US7458962B2Dec 2, 2008
Retractable needle medical device for injecting fluid from a pre-filled cartridge
MDC INVEST HOLDINGS INC20 citations92
US7527607B2May 5, 2009
Hypodermic syringe with retractable needle
MDC INVEST HOLDINGS INC9 citations84