Inventor
BROWNFIELD LAWRENCE C
US12 patents
⚠️ This page may combine multiple inventors who share the name “BROWNFIELD LAWRENCE C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MICRO ENHANCED TECHNOLOGY INC
9 patentsUS7482907B2Jan 27, 2009
Electronic access control device
MICRO ENHANCED TECHNOLOGY INC117 citations98
US7821395B2Oct 26, 2010
Vending machines with field-programmable locks
MICRO ENHANCED TECHNOLOGY INC67 citations97
US6900720B2May 31, 2005
Vending machines with field-programmable locks
MICRO ENHANCED TECHNOLOGY INC106 citations97
US5617082AApr 1, 1997
Electronic access control device utilizing a single microcomputer integrated circuit
MICRO ENHANCED TECHNOLOGY INC107 citations97
US7741952B2Jun 22, 2010
Electronic access control device
MICRO ENHANCED TECHNOLOGY INC46 citations96
US7456725B2Nov 25, 2008
Electronic access control device utilizing a single microcomputer intergrated circuit
MICRO ENHANCED TECHNOLOGY INC37 citations96
US7019615B2Mar 28, 2006
Electronic access control device
MICRO ENHANCED TECHNOLOGY INC32 citations96
US6977576B2Dec 20, 2005
Electronic access control device
MICRO ENHANCED TECHNOLOGY INC42 citations96
US7295100B2Nov 13, 2007
Electronic access control device
MICRO ENHANCED TECHNOLOGY INC22 citations92