Assignee
LJ LAB LLC
US·45 granted patents·4,097 citations·filing 1996–2002
Top patents by PatentIndex Score
45 records- 0199US5956682APicture frame with associated audio messages and position sensitive or speech recognition deviceLJ LAB LLC·Filed 1997·Granted Sep 21, 1999·129 cites·23 claims
- 0298US6570654B2Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2002·Granted May 27, 2003·95 cites·42 claims
- 0398US6519037B2Spectrometer having optical unit including a randomized fiber optic implementLJ LAB LLC·Filed 2001·Granted Feb 11, 2003·149 cites·110 claims
- 0498US6393401B1Picture display device with associated audio messageLJ LAB LLC·Filed 2001·Granted May 21, 2002·65 cites·104 claims
- 0598US5759030AMethod for determing optical characteristics of teethLJ LAB LLC·Filed 1996·Granted Jun 2, 1998·196 cites·79 claims
- 0697US6417917B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2001·Granted Jul 9, 2002·110 cites·42 claims
- 0797US6249348B1Integrated spectrometer assembly and methodsLJ LAB LLC·Filed 1999·Granted Jun 19, 2001·139 cites·32 claims
- 0897US6222620B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2000·Granted Apr 24, 2001·80 cites·166 claims
- 0997US5745229AApparatus for determining optical characteristics of an objectLJ LAB LLC·Filed 1996·Granted Apr 28, 1998·167 cites·36 claims
- 1096US6362888B1Spectrometer assemblyLJ LAB LLC·Filed 2001·Granted Mar 26, 2002·86 cites·22 claims
- 1196US6301004B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2000·Granted Oct 9, 2001·51 cites·45 claims
- 1296US6246471B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2000·Granted Jun 12, 2001·102 cites·58 claims
- 1395US6246479B1Integrated spectrometer assembly and methodsLJ LAB LLC·Filed 1999·Granted Jun 12, 2001·172 cites·46 claims
- 1495US6239868B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1998·Granted May 29, 2001·140 cites·48 claims
- 1595US6118521AApparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1998·Granted Sep 12, 2000·169 cites·71 claims
- 1694US6590660B2Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2002·Granted Jul 8, 2003·96 cites·80 claims
- 1794US6573984B2Apparatus and method for measuring optical characteristics of teethLJ LAB LLC·Filed 2001·Granted Jun 3, 2003·46 cites·38 claims
- 1894US6414750B2Spectrometric apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2001·Granted Jul 2, 2002·59 cites·21 claims
- 1994US6381017B2Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2001·Granted Apr 30, 2002·43 cites·36 claims
- 2094US6271913B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1998·Granted Aug 7, 2001·166 cites·142 claims
- 2194US5883708AApparatus for measuring optical propertiesLJ LAB LLC·Filed 1997·Granted Mar 16, 1999·117 cites·379 claims
- 2294US5871351AApparatus and method for measuring the color of teethLJ LAB LLC·Filed 1997·Granted Feb 16, 1999·90 cites·158 claims
- 2393US6040902AApparatus and method for measuring colorLJ LAB LLC·Filed 1997·Granted Mar 21, 2000·112 cites·379 claims
- 2493US5926262AApparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1997·Granted Jul 20, 1999·124 cites·86 claims
- 2592US5851113AApparatus and method for measuring the color of teethLJ LAB LLC·Filed 1997·Granted Dec 22, 1998·81 cites·123 claims
- 2691US6583866B2Spectrometric apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2002·Granted Jun 24, 2003·44 cites·91 claims
- 2791US6373573B1Apparatus for measuring optical characteristics of a substrate and pigments applied theretoLJ LAB LLC·Filed 2000·Granted Apr 16, 2002·202 cites·161 claims
- 2891US5966205AMethod and apparatus for detecting and preventing counterfeitingLJ LAB LLC·Filed 1997·Granted Oct 12, 1999·100 cites·86 claims
- 2989US6249339B1Method and apparatus for detecting and preventing counterfeitingLJ LAB LLC·Filed 2000·Granted Jun 19, 2001·50 cites·58 claims
- 3089US6038016AMethod and apparatus for detecting and preventing counterfeitingLJ LAB LLC·Filed 1999·Granted Mar 14, 2000·95 cites·58 claims
- 3188US6188471B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1999·Granted Feb 13, 2001·82 cites·166 claims
- 3287US6538726B2Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 2002·Granted Mar 25, 2003·43 cites·18 claims
- 3387US6233047B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1997·Granted May 15, 2001·79 cites·185 claims
- 3485US6264470B1Apparatus and method for measuring the color of teethLJ LAB LLC·Filed 1997·Granted Jul 24, 2001·57 cites·97 claims
- 3585US6263310B1Method for producing remotely a commemorative device having an audio message circuitLJ LAB LLC·Filed 1999·Granted Jul 17, 2001·34 cites·78 claims
- 3683US6449041B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1998·Granted Sep 10, 2002·68 cites·82 claims
- 3782US6307629B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1999·Granted Oct 23, 2001·48 cites·122 claims
- 3881US6381573B1Method for producing remotely a display device storing one or more audio messagesLJ LAB LLC·Filed 2001·Granted Apr 30, 2002·15 cites·72 claims
- 3979US6377926B2Method for producing remotely a display device storing one or more audio messagesLJ LAB LLC·Filed 2001·Granted Apr 23, 2002·12 cites·73 claims
- 4077US6501542B2Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1998·Granted Dec 31, 2002·30 cites·76 claims
- 4176US6490038B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1999·Granted Dec 3, 2002·37 cites·142 claims
- 4275US6127673AApparatus and method for detecting curvatureLJ LAB LLC·Filed 1998·Granted Oct 3, 2000·36 cites·15 claims
- 4372US6249340B1Apparatus and method for measuring optical characteristics of an objectLJ LAB LLC·Filed 1999·Granted Jun 19, 2001·140 cites·134 claims
- 4469US6254385B1Apparatus and method for measuring optical characteristics of teethLJ LAB LLC·Filed 1997·Granted Jul 3, 2001·98 cites·202 claims
- 4561US6185851B1Picture frame with associated audio messagesLJ LAB LLC·Filed 1996·Granted Feb 13, 2001·43 cites·86 claims
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