Required Technologies Inc.
The company trying to build a secretive, patented implementation of the relational model with great physical model flexibility.
United States Patent Application 20050065956
http://dmoz.org./cgi-bin/add.cgi?where=Computers/Software/Databases/Relational/Implementations/Requi
System of (generic) application software development that uses 100% SQL (stored procedures) and a tool that acts as a portal between the SP's and an end user in an organisation.
United States Patent Application: 0010000536
A patent application on efficient storage for RDBMSs.
United States Patent: 6,009,432
By Stephen A Tarin, assigned to Required Technologies, on efficiently storing data on RDBMSs.
Vincent Poydenot - Resume
This CV contains what is probably the most complete history of Relational Technologies -- not much anyway.