Assignee
LJ LAB LLC
US45 patents
Top patents by PatentIndex Score
US6570654B2May 27, 2003
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC95 citations99
US6373573B1Apr 16, 2002
Apparatus for measuring optical characteristics of a substrate and pigments applied thereto
LJ LAB LLC202 citations99
US6271913B1Aug 7, 2001
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC166 citations99
US6254385B1Jul 3, 2001
Apparatus and method for measuring optical characteristics of teeth
LJ LAB LLC98 citations99
US6249348B1Jun 19, 2001
Integrated spectrometer assembly and methods
LJ LAB LLC139 citations99
US6249340B1Jun 19, 2001
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC140 citations99
US6246479B1Jun 12, 2001
Integrated spectrometer assembly and methods
LJ LAB LLC172 citations99
US6239868B1May 29, 2001
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC140 citations99
US6118521ASep 12, 2000
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC169 citations99
US6040902AMar 21, 2000
Apparatus and method for measuring color
LJ LAB LLC112 citations99
US5956682ASep 21, 1999
Picture frame with associated audio messages and position sensitive or speech recognition device
LJ LAB LLC129 citations99
US5883708AMar 16, 1999
Apparatus for measuring optical properties
LJ LAB LLC117 citations99
US5871351AFeb 16, 1999
Apparatus and method for measuring the color of teeth
LJ LAB LLC90 citations99
US5759030AJun 2, 1998
Method for determing optical characteristics of teeth
LJ LAB LLC196 citations99
US5745229AApr 28, 1998
Apparatus for determining optical characteristics of an object
LJ LAB LLC167 citations99
US6519037B2Feb 11, 2003
Spectrometer having optical unit including a randomized fiber optic implement
LJ LAB LLC149 citations98
US6417917B1Jul 9, 2002
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC110 citations98
US6362888B1Mar 26, 2002
Spectrometer assembly
LJ LAB LLC86 citations98
US6246471B1Jun 12, 2001
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC102 citations98
US6038016AMar 14, 2000
Method and apparatus for detecting and preventing counterfeiting
LJ LAB LLC95 citations98
US5966205AOct 12, 1999
Method and apparatus for detecting and preventing counterfeiting
LJ LAB LLC100 citations98
US5926262AJul 20, 1999
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC124 citations98
US5851113ADec 22, 1998
Apparatus and method for measuring the color of teeth
LJ LAB LLC81 citations97
US6573984B2Jun 3, 2003
Apparatus and method for measuring optical characteristics of teeth
LJ LAB LLC46 citations96
US6490038B1Dec 3, 2002
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC37 citations96
US6449041B1Sep 10, 2002
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC68 citations96
US6414750B2Jul 2, 2002
Spectrometric apparatus and method for measuring optical characteristics of an object
LJ LAB LLC59 citations96
US6393401B1May 21, 2002
Picture display device with associated audio message
LJ LAB LLC65 citations96
US6381017B2Apr 30, 2002
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC43 citations96
US6307629B1Oct 23, 2001
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC48 citations96
US6301004B1Oct 9, 2001
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC51 citations96
US6264470B1Jul 24, 2001
Apparatus and method for measuring the color of teeth
LJ LAB LLC57 citations96
US6263310B1Jul 17, 2001
Method for producing remotely a commemorative device having an audio message circuit
LJ LAB LLC34 citations96
US6249339B1Jun 19, 2001
Method and apparatus for detecting and preventing counterfeiting
LJ LAB LLC50 citations96
US6233047B1May 15, 2001
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC79 citations96
US6222620B1Apr 24, 2001
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC80 citations96
US6188471B1Feb 13, 2001
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC82 citations96
US6590660B2Jul 8, 2003
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC96 citations95
US6583866B2Jun 24, 2003
Spectrometric apparatus and method for measuring optical characteristics of an object
LJ LAB LLC44 citations93
US6501542B2Dec 31, 2002
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC30 citations93
US6381573B1Apr 30, 2002
Method for producing remotely a display device storing one or more audio messages
LJ LAB LLC15 citations93
US6185851B1Feb 13, 2001
Picture frame with associated audio messages
LJ LAB LLC43 citations93
US6538726B2Mar 25, 2003
Apparatus and method for measuring optical characteristics of an object
LJ LAB LLC43 citations89
US6127673AOct 3, 2000
Apparatus and method for detecting curvature
LJ LAB LLC36 citations89
US6377926B2Apr 23, 2002
Method for producing remotely a display device storing one or more audio messages
LJ LAB LLC12 citations82