Inventor · disambiguated record
Robert D. Powell
Also filed as: POWELL ROBERT B · POWELL ROBERT D · POWELL ROBERT DAVID
22 granted patents·1 pending application·2,556 citations·filing 1992–2009
98Inventor score
Top patents by PatentIndex Score
23 records- 0199US5809160AMethod for encoding auxiliary data within a source signalDIGIMARC CORP·Filed 1997·Granted Sep 15, 1998·355 cites·38 claims
- 0299US5721788AMethod and system for digital image signaturesCORBIS CORP·Filed 1992·Granted Feb 24, 1998·1k cites·22 claims
- 0398US7978876B2Hiding codes in input dataDIGIMARC CORP·Filed 2009·Granted Jul 12, 2011·37 cites·30 claims
- 0498US5930377AMethod for image encodingDIGIMARC CORP·Filed 1998·Granted Jul 27, 1999·256 cites·55 claims
- 0597US7068812B2Decoding hidden data from imageryDIGIMARC CORP·Filed 2005·Granted Jun 27, 2006·25 cites·20 claims
- 0696US6678392B2Method for encoding auxiliary data within a source signalDIGIMARC CORP·Filed 2001·Granted Jan 13, 2004·49 cites·30 claims
- 0796US6628801B2Image marking with pixel modificationDIGIMARC CORP·Filed 1999·Granted Sep 30, 2003·116 cites·10 claims
- 0896US6459803B1Method for encoding auxiliary data within a source signalDIGIMARC CORP·Filed 2001·Granted Oct 1, 2002·48 cites·11 claims
- 0995US7412074B2Hiding codes in input dataDIGIMARC CORP·Filed 2006·Granted Aug 12, 2008·22 cites·38 claims
- 1095US7280672B2Image data processingDIGIMARC CORP·Filed 2006·Granted Oct 9, 2007·24 cites·7 claims
- 1193US7062070B2Image marking adapted to the imageDIGIMARC CORP·Filed 2004·Granted Jun 13, 2006·27 cites·35 claims
- 1293US6614915B2Image capture and markingDIGIMARC CORP·Filed 2002·Granted Sep 2, 2003·36 cites·20 claims
- 1393US6385330B1Method for encoding auxiliary data within a source signalDIGIMARC CORP·Filed 2001·Granted May 7, 2002·104 cites·8 claims
- 1493US6307950B1Methods and systems for embedding data in imagesDIGIMARC CORP·Filed 2000·Granted Oct 23, 2001·31 cites·18 claims
- 1591US7593545B2Determining whether two or more creative works correspondDIGIMARC CORP·Filed 2008·Granted Sep 22, 2009·9 cites·23 claims
- 1691US6137892AData hiding based on neighborhood attributesDIGIMARC CORP·Filed 1999·Granted Oct 24, 2000·65 cites·11 claims
- 1790US7068811B2Protecting images with image markingsDIGIMARC CORP·Filed 2002·Granted Jun 27, 2006·28 cites·45 claims
- 1889US6072888AMethod for image encodingDIGIMARC CORP·Filed 1999·Granted Jun 6, 2000·56 cites·15 claims
- 1988US6157905AIdentifying language and character set of data representing textMICROSOFT CORP·Filed 1997·Granted Dec 5, 2000·154 cites·55 claims
- 2087US7136503B2Encoding hidden dataDIGIMARC CORP·Filed 2005·Granted Nov 14, 2006·9 cites·20 claims
- 2184US6317505B1Image marking with error correctionDIGIMARC CORP·Filed 1999·Granted Nov 13, 2001·35 cites·4 claims
- 2282US6301369B2Image marking to permit later identificationDIGIMARC CORP·Filed 2001·Granted Oct 9, 2001·22 cites·9 claims
- 2351US2005170320A1Accelerated Experiential Learning (AEL)Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →