4. PT 104197: Pombeiro, A.J.L.; Martins, L.M.D.R.S.; Alegria, E.C.B.A.  Mishra, G.S.; Fraústo da Silva,  J.J.R. Complexes of Rhenium and Pyrazole Supported on Functionalized Silica as Catalysts for the Partial Oxidation of n-Hexane and Cyclohexane with Dioxygen and under Environmentally Acceptable Conditions (priority date: 30/09/2008, awarded date: 27/07/2009). 

3. PT 104153:  Pombeiro, A.J.L.; L.M.D.R.S., Martins; Alegria, E.C.B.A.;  Silva, T.F.S. Scorpionate Chloro-Complexes of Iron and Vanadium and their Application as Catalysts for the Partial Oxidation, under Mild and Environmentally Tolerable Conditions, of Cyclohexane to Cyclohexanol and Cyclohexanone (priority date: 4/07/2008, awarded date: 1/07/2009).

2. PT 103681: Pombeiro, A.J.L.; Martins, L.M.D.R.S.; Alegria, E.C.B.A. Use of Microwaves for the Synthesis of Substituted Tris(pyrazolyl)methanes (priority date: 09/03/2007, awarded date: 4/12/2009).

1. PT 103735: Pombeiro, A.J.L.; Martins, L.M.D.R.S.;  Alegria, E.C.B.A.; Kirillova, M.V. New Complexes of Rhenium with Pyrazole or tris(1-pyrazolyl)methanes and their Application as Catalysts for the Partial Oxidation, under Mild Conditions, of Ethane to Acetic and Acetaldehyde and of Cyclohexane to Cyclohexanol and Cyclohexanone (priority date: 11/05/2007, awarded date: 31/03/2008). ​