1827 - Sol-Re-Sol - François Sudre
1839 - Comunicationsprache - Joseph Schipfer
1844 - Kosmos - Eugène Lauda
1845 - Universal - Bonifacio Santos Ochandiano
1868 - Universalglot - Jean Pirro
1879 - Volapük - Johan Martin Schleyer
1887 - Esperanto - Ludoviko Zamenhof
1888 - Mundolinco - Jacob Braakman
1888 - Mundolingue - Julius Lott
1890 - Spokil - Adolph Nicolas
1893 - Dil – Flewerger
1893 - Balta – Dormoy
1896 - Veltparl – W. Von Arnim
1899 - Bolak - Léon Bollack
1902 - Idiom Neutral – Waldemar Rosenberg
1902 - Tutonish
1903 - Latino sine flexione - Giuseppe Peano
1907 - Ido – Louis Couturat, Louis de Beaufront e a.
1908 - Adjuvilo – Claudius Colas
1922 - Occidental- Edgar de Wahl
1928 - Novial– Otto Jaspersen
1935 - Sona– Kenneth Searight
1937 - Esperanto II – René de Saussure
1943 - Mondial - Helge Heimer
1943 - Interglossa– Lancelot Hogben
1951 - Interlingua – Alexander Gode e IALA
1955 - Loglan - James Cooke Brown
1956 - Intal - Erich Weferling
1957 - Frater - Phan Xuan Thai
1961 - Neo- Arturo Alfandari
1962 - Teonaht- Sally Caves
1962 - Babm- Rikichi Okamoto
1977 - Alurhsa - Anthony Harris
1978 - Kotava - Staren Fetcey
1978 - Ithkuil - John Quijada
1979 - Glosa- R. Clark W. Ashby
1979 - Talossan - R.Ben Madison
1984 - Slovio - Mark Hucko
1984 - Klingon - Marc Okrand
1984 - Denden - Boudewijn
1987 - Lojban - Logical Lenguage Group
1996 - Brithenig - Andrew Smith
1996 - Europanto - Diego Marini
1998 - Lingua Franca Nova - George Boeree
1999 - Qatama- Carl Buck
1999 - Dagaspregos - Thomas Wier
2001 - Toki Pona - Sonja Elen Kisa
2002 - Wenedyk - Jan van Steenbergen