Cofta, Piotr, Mallett, Colin. (2010) Method and Apparatus for secure Energy Delivery. GB 2012/0035,871. Granted in the UK as GB 2479324, under examination in the EU, the USA, Japan and in Australia

Piotr Cofta: Method and System for Recursive Authentication in a Mobile Network. (2006). Granted in the USA as 8,165,565 and in the EU as EP 1 982 547

Piotr Cofta: SIM Based Authentication. (2007) WO 2007/104909, B 2007/000446, EP1994715, US 20090068988. Granted in the UK, and EU, in the USA as 8,417,218, in China as CN101406021.

Piotr Cofta: Methods, Apparatuses and Software for Authentication of Devices Temporarily Provided With a SIM to Store a Challenge-Response. (2007) Granted in the USA as US 8,190,127 and in China as CN101406020. Under examination in the EU.

Piotr Cofta, Olli Immonen: Trusted Signature with Key Access Permission. (2004) Granted in the USA as US 7,853,793

Lauri Paatero, Cofta Piotr Key Storage Administration. (2006) Granted in Korea as KR 100823631.

Zheng Yan, Piotr Cofta: System and Method to Establish and Maintain Conditional Trust by Stating Signal of Distrust. (2005) Granted in the USA as 7,634,807

Piotr Cofta: Communications Devices Monitoring. (2007) Granted in the USA as US 8,126,507. Granted in the EU as EP 1997 052.

Piotr Cofta, Lauri Paatero: Method and System for Visualising a Level of Trust of Network Communication Operations and Connections of Servers. (2003) Granted in Korea as KR100655400. Under examination in the EU

Piotr Cofta, Olli Immonen, Mikael Linden, Mikko Lukkaroinen: Method for Binding a Program Module. (1999) Granted in the USA as US 7,263,618

Linden, M., Immonen, O., Lukkarionen, M., Cofta, P. Network Element and Method for Controlling Access to Low Level Computer System Services. Granted in the USA as 7,315,942 and in Finland as FI 106 495