P

Inventor

CROSSFIELD MICHAEL D

GB9 patents
⚠️ This page may combine multiple inventors who share the name “CROSSFIELD MICHAEL D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SCIENT GENERICS LTD

3 patents
US4940966AJul 10, 1990

Article detection and/or recognition using magnetic devices

SCIENT GENERICS LTD182 citations97
US5049856ASep 17, 1991

Antipilferage systems

SCIENT GENERICS LTD18 citations72
US4999609AMar 12, 1991

Antipilferage tags having an acoustic resonator chamber

SCIENT GENERICS LTD17 citations72

ESSELTE METO INT GMBH

2 patents
US5459451AOct 17, 1995

Electronic article surveillance system with enhanced geometric arrangement

ESSELTE METO INT GMBH48 citations92
US5414410AMay 9, 1995

Method and system for detecting a marker

ESSELTE METO INT GMBH40 citations88

CROSSFIELD MICHAEL D

2 patents
US5208580AMay 4, 1993

Security tag attachment

CROSSFIELD MICHAEL D51 citations90
US4992776AFeb 12, 1991

Antipilferage tags and their use

CROSSFIELD MICHAEL D41 citations90

FLYING NULL LTD

1 patent
US6486655B1Nov 26, 2002

Magnetic position sensing techniques

FLYING NULL LTD25 citations91

MEADWESTVACO CORP

1 patent
US7315253B1Jan 1, 2008

Security device and transponder

MEADWESTVACO CORP25 citations87