Inventor · disambiguated record
Joseph S. Chan
Also filed as: CHAN JOSEPH S · CHAN JOSEPH SIUFAI
19 granted patents·989 citations·filing 1995–2007
96Inventor score
Top patents by PatentIndex Score
19 records- 0197US7386404B2Method and apparatus for monitoring battery discharge stateSAVI TECHN INC·Filed 2005·Granted Jun 10, 2008·62 cites·40 claims
- 0296US6940392B2Method and apparatus for varying signals transmitted by a tagSAVI TECHN INC·Filed 2001·Granted Sep 6, 2005·183 cites·20 claims
- 0396US6765484B2Method and apparatus for supplying commands to a tagSAVI TECHN INC·Filed 2001·Granted Jul 20, 2004·207 cites·24 claims
- 0496US6747558B1Method and apparatus for providing container security with a tagSAVI TECHN INC·Filed 2002·Granted Jun 8, 2004·198 cites·19 claims
- 0591US7768392B1Received signal strength location determination of low frequency tagsSAVI TECHN INC·Filed 2007·Granted Aug 3, 2010·50 cites·46 claims
- 0689US5909640AWireless communication system for adapting to frequency driftWHISPER COMMUNICATIONS INC·Filed 1997·Granted Jun 1, 1999·103 cites·24 claims
- 0788US7911182B2Method and apparatus for detecting a battery voltageSAVI TECHN INC·Filed 2005·Granted Mar 22, 2011·34 cites·15 claims
- 0887US8111141B1Received signal strength distance determination of low frequency tagsBRAND TIMOTHY K·Filed 2007·Granted Feb 7, 2012·26 cites·37 claims
- 0984US7434731B2Method and apparatus for efficient data transmission from a tagSAVI TECHN INC·Filed 2006·Granted Oct 14, 2008·11 cites·30 claims
- 1083US5734966AWireless communication system for adapting to frequency driftDIABLO RESEARCH CORP·Filed 1995·Granted Mar 31, 1998·71 cites·43 claims
- 1182US7541942B2Method and apparatus for processing signpost signals received by a tagSAVI TECHN INC·Filed 2006·Granted Jun 2, 2009·19 cites·34 claims
- 1278US8164307B2Method and apparatus for monitoring the voltage of a batteryCARGONJA NIKOLA·Filed 2005·Granted Apr 24, 2012·10 cites·7 claims
- 1373US7358856B2Two-phase commit synchronizing seal stateSAVI TECHN INC·Filed 2005·Granted Apr 15, 2008·3 cites·50 claims
- 1470US8068009B2Radio frequency identification system and a method of operating sameCARGONJA NIKOLA·Filed 2006·Granted Nov 29, 2011·2 cites·23 claims
- 1570US7570150B2Method and apparatus for coordinating communications between a tag and a readerSAVI TECHN INC·Filed 2006·Granted Aug 4, 2009·4 cites·19 claims
- 1660US7629879B2Method and apparatus for handling signpost signals in a tagSAVI TECHN INC·Filed 2006·Granted Dec 8, 2009·2 cites·33 claims
- 1756US7570176B2Radio frequency identification tag and a method of operating sameSAVI TECHN INC·Filed 2006·Granted Aug 4, 2009·2 cites·25 claims
- 1848US8253541B2Method and apparatus for varying signals transmitted by a tagCHAN JOSEPH S·Filed 2005·Granted Aug 28, 2012·2 cites·42 claims
- 1941US8264331B2Method and apparatus for detecting container movement by a craneNARDELLI ALBERT·Filed 2007·Granted Sep 11, 2012·0 cites·31 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →