Patents

   US 6,476,015     N-thiolated beta lactam antibiotics.

   US 6,946,458     N-thiolated beta lactams: novel antibacterial

                          agents for methycillin-resistant staphylococcus

                          aureus.

   US 7,026,472     Methods for preventing and treating cancer using

                          N-thiolated beta lactam compounds and analogs

                          thereof.

The above list of not comprehensive and does not include any

additional pending U.S. and foreign patent applications.