Inventor · disambiguated record
Claude Zeller
Also filed as: ZELLER CLAUDE
30 granted patents·4 pending applications·773 citations·filing 1981–2011
97Inventor score
Top patents by PatentIndex Score
34 records- 0197US7286685B2Halftone watermarking and related applicationsPITNEY BOWES INC·Filed 2006·Granted Oct 23, 2007·73 cites·9 claims
- 0297US7054461B2Authenticating printed objects using digital watermarks associated with multidimensional quality metricsDIGIMARC CORP·Filed 2002·Granted May 30, 2006·207 cites·40 claims
- 0394US7536553B2Method and system for validating a security markingPITNEY BOWES INC·Filed 2002·Granted May 19, 2009·32 cites·28 claims
- 0493US6533385B1Method for determining a printer's signature and the number of dots per inch printed in a document to provide proof that the printer printed a particular documentPITNEY BOWES INC·Filed 2001·Granted Mar 18, 2003·50 cites·7 claims
- 0593US4414142AOrganic matrix composites reinforced with intercalated graphiteVOGEL F LINCOLN·Filed 1981·Granted Nov 8, 1983·67 cites·8 claims
- 0688US7191336B2Method for embedding information in an imagePITNEY BOWES INC·Filed 2002·Granted Mar 13, 2007·37 cites·15 claims
- 0788US6911910B2Method for detecting and redirecting misdirected mailPITNEY BOWES INC·Filed 2002·Granted Jun 28, 2005·38 cites·15 claims
- 0885US7055746B2Postage indicia including color bar sequence to aid in authenticationPITNEY BOWES INC·Filed 2004·Granted Jun 6, 2006·24 cites·30 claims
- 0983US6284027B1Machine readable water based red fluorescent ink compositionsPITNEY BOWES INC·Filed 2000·Granted Sep 4, 2001·22 cites·10 claims
- 1082US7966267B2Method and system for validating a security markingPITNEY BOWES INC·Filed 2009·Granted Jun 21, 2011·9 cites·11 claims
- 1180US7114657B2Fragile water mark printed with two component inks and processPITNEY BOWES INC·Filed 2003·Granted Oct 3, 2006·26 cites·8 claims
- 1276US7747544B2Meter tape with location indicator used for unique identificationPITNEY BOWES INC·Filed 2005·Granted Jun 29, 2010·2 cites·13 claims
- 1375US7424975B2Method for printing two dimensional barcodes to reduce reading errorsPITNEY BOWES INC·Filed 2006·Granted Sep 16, 2008·6 cites·18 claims
- 1473US6612684B2Method for determining a printer's signature to provide proof that the printer printed a particular documentPITNEY BOWES INC·Filed 2001·Granted Sep 2, 2003·11 cites·8 claims
- 1570US7787152B2Copy detection system using correlations of copy detection patternsPITNEY BOWES INC·Filed 2005·Granted Aug 31, 2010·3 cites·16 claims
- 1669US7013024B2Method for reading information that has been embedded in an imagePITNEY BOWES INC·Filed 2002·Granted Mar 14, 2006·14 cites·12 claims
- 1762US7446891B2Fragile watermark for detecting printed image copiesPITNEY BOWES INC·Filed 2003·Granted Nov 4, 2008·9 cites·14 claims
- 1860US8041645B2Document security utilizing color gradientsPITNEY BOWES INC·Filed 2004·Granted Oct 18, 2011·1 cites·5 claims
- 1960US6058190AMethod and system for automatic recognition of digital indicia images deliberately distorted to be non readablePITNEY BOWES INC·Filed 1997·Granted May 2, 2000·27 cites·8 claims
- 2059US6391103B1Color imparting compositions for ink jet printer inks and machine readable ink compositions containing samePITNEY BOWES INC·Filed 2000·Granted May 21, 2002·4 cites·11 claims
- 2159US5017907ADouble pulse magnetic markersPITNEY BOWES INC·Filed 1990·Granted May 21, 1991·29 cites·9 claims
- 2258US7827171B2Copy detection using contour analysisPITNEY BOWES INC·Filed 2005·Granted Nov 2, 2010·1 cites·15 claims
- 2358US2012080525A1Document Security Utilizing Color GradientsCORDERY ROBERT A·Filed 2011·Application pending·0 cites
- 2456US2009172777A1System and method for tracking documentsPITNEY BOWES INC·Filed 2007·Application pending·0 cites
- 2552US7995246B2Detecting printed image copies using phase-space-encoded fragile watermarkPITNEY BOWES INC·Filed 2003·Granted Aug 9, 2011·0 cites·18 claims
- 2652US5611630AMethod and apparatus for securely printing a postal indicia image having a different dot density in two dimensions thereofPITNEY BOWES INC·Filed 1995·Granted Mar 18, 1997·22 cites·9 claims
- 2752US2006020802A1Tonal compensation for graphic security featuresPITNEY BOWES INC·Filed 2004·Application pending·0 cites
- 2850USRE45828EMethod for determining a printer's signature and the number of dots per inch printed in a document to provide proof that the printer printed a particular documentMACKAY DONALD G·Filed 2005·Granted Dec 29, 2015·0 cites·14 claims
- 2949US6947179B2Method for determining the information capacity of a paper channel and for designing or selecting a set of bitmaps representative of symbols to be printed on said channelPITNEY BOWES INC·Filed 2000·Granted Sep 20, 2005·2 cites·20 claims
- 3049US4940959AReversible resistant devicePITNEY BOWES INC·Filed 1989·Granted Jul 10, 1990·9 cites·5 claims
- 3148US6904525B1Method for preventing counterfeiting of articles of manufacturePITNEY BOWES INC·Filed 1997·Granted Jun 7, 2005·25 cites·6 claims
- 3243US5121106AElectronic article surveillance markers with diagonal deactivation elementsPITNEY BOWES INC·Filed 1990·Granted Jun 9, 1992·17 cites·12 claims
- 3336US2002176114A1Method for utilizing a fragile watermark for enhanced securityPITNEY BOWES INC·Filed 2002·Application pending·0 cites
- 3434US5923343AMailing machine having a registration shield with improved air flow capability during ink jet printing on envelopesPITNEY BOWES INC·Filed 1997·Granted Jul 13, 1999·6 cites·9 claims
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