Assignee
HOUGHTON MIFFLIN CO
US·10 granted patents·1,180 citations·filing 1983–1987
Top patents by PatentIndex Score
10 records- 0196US4868750ACollocational grammar systemHOUGHTON MIFFLIN CO·Filed 1987·Granted Sep 19, 1989·301 cites·17 claims
- 0294US4864502ASentence analyzerHOUGHTON MIFFLIN CO·Filed 1987·Granted Sep 5, 1989·186 cites·28 claims
- 0394US4864501AWord annotation systemHOUGHTON MIFFLIN CO·Filed 1987·Granted Sep 5, 1989·174 cites·14 claims
- 0490US4674066ATextual database system using skeletonization and phonetic replacement to retrieve words matching or similar to query wordsHOUGHTON MIFFLIN CO·Filed 1986·Granted Jun 16, 1987·130 cites·13 claims
- 0587US4724523AMethod and apparatus for the electronic storage and retrieval of expressions and linguistic informationHOUGHTON MIFFLIN CO·Filed 1985·Granted Feb 9, 1988·99 cites·76 claims
- 0683US4773009AMethod and apparatus for text analysisHOUGHTON MIFFLIN CO·Filed 1986·Granted Sep 20, 1988·118 cites·42 claims
- 0776US4771401AApparatus and method for linguistic expression processingHOUGHTON MIFFLIN CO·Filed 1986·Granted Sep 13, 1988·63 cites·68 claims
- 0873US4783758AAutomated word substitution using numerical rankings of structural disparity between misspelled words & candidate substitution wordsHOUGHTON MIFFLIN CO·Filed 1985·Granted Nov 8, 1988·51 cites·31 claims
- 0971US4580241AGraphic word spelling correction using automated dictionary comparisons with phonetic skeletonsHOUGHTON MIFFLIN CO·Filed 1983·Granted Apr 1, 1986·38 cites·20 claims
- 1053US4730269AMethod and apparatus for generating word skeletons utilizing alpha set replacement and omissionHOUGHTON MIFFLIN CO·Filed 1986·Granted Mar 8, 1988·20 cites·18 claims
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