Inventor · disambiguated record
Michael D. Crossfield
Also filed as: CROSSFIELD MICHAEL D · CROSSFIELD MICHAEL DAVID
18 granted patents·886 citations·filing 1988–2005
96Inventor score
Files withFLYING NULL LTD10SCIENT GENERICS LTD3CROSSFIELD MICHAEL D2ESSELTE METO INT GMBH2MEADWESTVACO CORP1
Top patents by PatentIndex Score
18 records- 0196US4940966AArticle detection and/or recognition using magnetic devicesSCIENT GENERICS LTD·Filed 1988·Granted Jul 10, 1990·182 cites·6 claims
- 0294US6076007ASurgical devices and their locationFLYING NULL LTD·Filed 1997·Granted Jun 13, 2000·192 cites·15 claims
- 0387US6371379B1Magnetic tags or markersFLYING NULL LTD·Filed 1996·Granted Apr 16, 2002·97 cites·36 claims
- 0486US7315253B1Security device and transponderMEADWESTVACO CORP·Filed 2005·Granted Jan 1, 2008·25 cites·19 claims
- 0580US5208580ASecurity tag attachmentCROSSFIELD MICHAEL D·Filed 1990·Granted May 4, 1993·51 cites·4 claims
- 0674US4992776AAntipilferage tags and their useCROSSFIELD MICHAEL D·Filed 1989·Granted Feb 12, 1991·41 cites·7 claims
- 0773US5459451AElectronic article surveillance system with enhanced geometric arrangementESSELTE METO INT GMBH·Filed 1994·Granted Oct 17, 1995·48 cites·31 claims
- 0872US6054924AMagnetic markersFLYING NULL LTD·Filed 1997·Granted Apr 25, 2000·42 cites·11 claims
- 0965US5414410AMethod and system for detecting a markerESSELTE METO INT GMBH·Filed 1994·Granted May 9, 1995·40 cites·14 claims
- 1058US5965214AMethods for coding magnetic tagsFLYING NULL LTD·Filed 1997·Granted Oct 12, 1999·32 cites·18 claims
- 1157US6230972B1Magnetic reading devicesFLYING NULL LTD·Filed 1997·Granted May 15, 2001·31 cites·19 claims
- 1256US5049856AAntipilferage systemsSCIENT GENERICS LTD·Filed 1989·Granted Sep 17, 1991·18 cites·5 claims
- 1355US4999609AAntipilferage tags having an acoustic resonator chamberSCIENT GENERICS LTD·Filed 1989·Granted Mar 12, 1991·17 cites·11 claims
- 1453US6486655B1Magnetic position sensing techniquesFLYING NULL LTD·Filed 1999·Granted Nov 26, 2002·25 cites·9 claims
- 1550US6491221B1Security documentsFLYING NULL LTD·Filed 2000·Granted Dec 10, 2002·4 cites·27 claims
- 1645US6204766B1Multi-layer magnetic tagFLYING NULL LTD·Filed 1997·Granted Mar 20, 2001·22 cites·13 claims
- 1742US6369965B1Magnetic interrogation techniquesFLYING NULL LTD·Filed 1997·Granted Apr 9, 2002·9 cites·20 claims
- 1836US6595419B1Shielded magnetic reading devicesFLYING NULL LTD·Filed 1999·Granted Jul 22, 2003·10 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →