6.  WO 2018/158582 Al (Hovione SA): “Boronated Multifunctional Targeting Drug Conjugate” F. Santos and P. M. P. Gois, 2017/03/02, PT109941. .

5. PCT patent pending: “Chemical modification and bioconjugation of proteins or peptides using boron compounds” Pedro M. S. D. Cal, João B. Vicente and Pedro M. P. Gois, 2011/12/07, 20111000093734 (INPI). PCT/IB2012/057063.

4. PCT patent pending: “Boron heterocycles as new inhibitors of human neutrophil elastase (HNE) Inventors” Francesco Montalbano, Pedro M. D. S. Cal, Lídia M. D. Gonçalves, Rui Moreira and Pedro M. P. Gois. PCT/IB2012/057064.

3. “New ionic liquid sol-gel matrices preparation and applications thereof” 2010; Portuguese patent Nº20101000059066 (INPI)

2. “Novos liquidos iónicos baseados na unidade tetra-alquil-dimetilguanidínio” Portuguese patent nº102937 (INPI)

1. Synthesis and properties of tetra-dimethylguanidinium salts as a potential new generation of ionic liquids.” Patente Europeia nº(Pedido) 04398003.6 07/04/04