The Working Group (WG) concept forms the backbone of the PDG. The task of monitoring, testing or comparing patent information resources is carried out within the WGs of the PDG in such a way that there is no duplication of effort but, if advantageous, there is cooperation between different WGs. Each WG has a chairperson, selected from the WG members, who is responsible for its smooth operation and who presents an annual report of progress and future plans at the Members' Conference.
Companies that send their experts to the working group sessions (usually once or twice a year) consider their time and money well spent. They share and exchange their experiences concerning databases, hosts, vendors and producers. Furthermore, they make qualified and considered proposals to the vendors for improvements, new services and products. Member organisations can carry out surveys within the PDG but the results remain confidential within the participating organisations.