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David A. Evans
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Pittsburgh, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for constructing a compact similarity structur...
Patent number
7,949,644
Issue date
May 24, 2011
JustSystems Evans Research, Inc.
James G. Shanahan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for constructing a compact similarity structur...
Patent number
7,472,131
Issue date
Dec 30, 2008
JustSystems Evans Research, Inc.
James G. Shanahan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for information mining and filtering
Patent number
7,464,096
Issue date
Dec 9, 2008
JustSystems Evans Reasearch, Inc.
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for document filtering using ensemble filters
Patent number
7,426,509
Issue date
Sep 16, 2008
JustSystems Evans Research, Inc.
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for document filtering using ensemble filters
Patent number
7,398,269
Issue date
Jul 8, 2008
JustSystems Evans Research Inc.
James G. Shanahan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method of identifying the language of a textual passage using short...
Patent number
7,359,851
Issue date
Apr 15, 2008
Clairvoyance Corporation
Xiang Tong
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for adjusting the model threshold of a support...
Patent number
7,356,187
Issue date
Apr 8, 2008
Clairvoyance Corporation
James G. Shanahan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method for cross-linguistic document retrieval
Patent number
6,876,998
Issue date
Apr 5, 2005
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for retrieving text using document signatures
Patent number
6,820,079
Issue date
Nov 16, 2004
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Apparatus and methodology for submitting search oueries
Patent number
6,532,461
Issue date
Mar 11, 2003
Clairvoyance
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Overlapping subdocuments in a vector space search process
Patent number
6,473,755
Issue date
Oct 29, 2002
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information retrieval based on using and locating subdocuments
Patent number
6,377,947
Issue date
Apr 23, 2002
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Methodology for displaying search results using character recognition
Patent number
6,363,179
Issue date
Mar 26, 2002
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for cross-linguistic database retrieval
Patent number
6,263,329
Issue date
Jul 17, 2001
Claritech
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Apparatus and methodology for submitting search queries
Patent number
6,226,631
Issue date
May 1, 2001
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Overlapping subdocuments in a vector space search process
Patent number
6,205,443
Issue date
Mar 20, 2001
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information retrieval based on use of subdocuments
Patent number
6,115,706
Issue date
Sep 5, 2000
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method for cross-linguistic document retrieval
Patent number
6,055,528
Issue date
Apr 25, 2000
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for retrieving text using document signatures
Patent number
6,029,167
Issue date
Feb 22, 2000
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information retrieval based on use of sub-documents
Patent number
5,999,925
Issue date
Dec 7, 1999
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Methodology for displaying search results using character recognition
Patent number
5,987,448
Issue date
Nov 16, 1999
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Apparatus and methodology for submitting search queries
Patent number
5,970,483
Issue date
Oct 19, 1999
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Displaying portions of text from multiple documents over multiple d...
Patent number
5,926,808
Issue date
Jul 20, 1999
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Overlapping subdocuments in a vector space search process
Patent number
5,907,840
Issue date
May 25, 1999
Claritech Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Methods and apparatus for interactive document clustering
Publication number
20090287668
Publication date
Nov 19, 2009
JustSystems Evans Research, Inc.
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Hybrid method for simulation optimization
Publication number
20080312885
Publication date
Dec 18, 2008
JustSystems Evans Research, Inc.
Tianjiao Chu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for performing a semantically informed merge o...
Publication number
20080294427
Publication date
Nov 27, 2008
JustSystems Evans Research, Inc.
Hua Cheng
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for performing semantically informed text oper...
Publication number
20080295013
Publication date
Nov 27, 2008
JustSystems Evans Research, Inc.
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for performing semantic update and replace ope...
Publication number
20080294425
Publication date
Nov 27, 2008
JustSystems Evans Research, Inc.
David A. Hull
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for anchoring expressions based on an ontologi...
Publication number
20080294426
Publication date
Nov 27, 2008
JustSystems Evans Research, Inc.
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for the automated construction of models of ac...
Publication number
20080294398
Publication date
Nov 27, 2008
JustSystems Evans Research, Inc.
Yan Qu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for constructing a compact similarity structur...
Publication number
20080275870
Publication date
Nov 6, 2008
James G. Shanahan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for constructing a compact similarity structur...
Publication number
20070136336
Publication date
Jun 14, 2007
Clairvoyance Corporation
James G. Shanahan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Methods and apparatus for rank-based response set clustering
Publication number
20070112867
Publication date
May 17, 2007
Clairvoyance Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Methods and apparatus for probe-based clustering
Publication number
20070112898
Publication date
May 17, 2007
Clairvoyance Corporation
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for adjusting the model threshold of a support...
Publication number
20050228783
Publication date
Oct 13, 2005
James G. Shanahan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for information mining and filtering
Publication number
20050223042
Publication date
Oct 6, 2005
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method of identifying the language of a textual passage using short...
Publication number
20050154578
Publication date
Jul 14, 2005
Xiang Tong
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for document filtering using ensemble filters
Publication number
20040172378
Publication date
Sep 2, 2004
James G. Shanahan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for document filtering using ensemble filters
Publication number
20040158569
Publication date
Aug 12, 2004
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Displaying portions of text from multiple documents over multiple d...
Publication number
20030225757
Publication date
Dec 4, 2003
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for overlaying a source text on an output text
Publication number
20030200505
Publication date
Oct 23, 2003
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method for cross-linguistic document retrieval
Publication number
20020184206
Publication date
Dec 5, 2002
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Overlapping subdocuments in a vector space search process
Publication number
20010042061
Publication date
Nov 15, 2001
David A. Evans
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Apparatus and methodology for submitting search oueries
Publication number
20010016067
Publication date
Aug 23, 2001
David A. Evans
G06 - COMPUTING CALCULATING COUNTING