Another example: Microsoft SQL Server is a fork of Sybase SQL Server. Microsoft was helping port Sybase SQL Server to OS/2 and somehow negotiated exclusive righ

Another example: Microsoft SQL Server is a fork of Sybase SQL Server. Microsoft was helping port Sybase SQL Server to OS/2 and somehow negotiated exclusive rights to all versions of SQL Server written for Microsoft operating systems. Sybase later changed the name of its product to Adaptive Server Enterprise to avoid confusion with "Microsoft's" SQL Server. https://en.wikipedia.org/wiki/History_of_Microsoft_SQL_Server https://en.wikipedia.org/wiki/History_of_Microsoft_SQL_Serve...