David Carmel's Patents

Issued Patents
US7512602 System, method and computer program product for performing
unstructured information management and automatic text analysis,
including a search operator functioning as a weighted and (WAND) 2009-03-31 2006-11-30
US7406462 Prediction of query difficulty for a generic search engine 2008-07-29 2004-10-19
US7401073 Term-statistics modification for category-based search 2008-07-15 2008-04-28
US7356527 Lossy index compression 2008-04-08 2001-12-19
US7318057 Information search using knowledge agents 2008-01-08 2003-08-01
US7139752 System, method and computer program product for performing
unstructured information management and automatic text analysis,
and providing multiple document views derived from different
document tokenizations 2006-11-21 2003-05-30
US7072827 Morphological disambiguation 2006-07-04 2000-06-29
US6941297 Automatic query refinement 2005-09-06 2002-07-31



Filed Patents:
US20090106375A1 Method and System for Conversation Detection in Email Systems 2009-04-23 2007-10-23
US20090055481A1 AUTOMATICALLY GENERATED SUBJECT RECOMMENDATIONS
FOR EMAIL MESSAGES BASED ON EMAIL MESSAGE CONTENT 2009-02-26 2007-08-20
US20080147644A1 Information search using knowledge agents 2008-06-19 2007-12-10
US20080033971A1 Analyzing the Ability to Find Textual Content 2008-02-07 2006-08-01
US20070016574A1 Merging of results in distributed information retrieval 2007-01-18 2005-07-14
US20070016545A1 Detection of missing content in a searchable repository 2007-01-18 2005-07-14
US20060248074A1 Term-statistics modification for category-based search 2006-11-02 2005-04-28
US20060085399A1 Prediction of query difficulty for a generic search engine 2006-04-20 2004-10-19
US20040243645A1 System, method and computer program product for performing
unstructured information management and automatic text analysis,
and providing multiple document views derived from
different document tokenizations 2004-12-02 2003-05-30
US20040243557A1 System, method and computer program product for performing
unstructured information management and automatic text analysis,
including a search operator functioning as a weighted and (WAND) 2004-12-02 2003-05-30
US20040158580A1 Lossy index compression 2004-08-12 2004-01-09
US20040128615A1 Indexing and querying semi-structured documents 2004-07-01 2002-12-27
US20040128273A1 Temporal link analysis of linked entities 2004-07-01 2002-12-31
US20040034632A1 Automatic query refinement 2004-02-19 2002-07-31
US20040030688A1 Information search using knowledge agents 2004-02-12 2003-08-01