Patrick studied quantum chemistry at the University of Groningen and defended his PhD “Towards relativistic quantum Chemistry” in 1986 (cum laude). The work concerns the full implementation of the first four-component relativistic methodology and computer code to solve the electronic equations of motion for molecular systems containing heavy atoms. Patrick remained tied to the University of Groningen part-time as a Postdoc until the second half of the nineties.
In 1985 he became support scientist for the “Working group on the use of Supercomputers” and since 1986 secretary of that working group. In 1990 he became Director of the newly established Netherlands Computing Facilities Foundation, operating under the umbrella of NWO, until 2012.
Presently he works at the Netherlands eScience Center as Director Strategic Alliances as part of the management team, responsible for the Netherlands eScience Center added value, business and other external contacts. Patrick is a member of several international (mainly European) advisory bodies and boards of e-infrastructures and organizations.