This study explores boundary-crossing networks in fuel-cell science and technology. We use the case of Norwegian fuel cell
and related hydrogen research to explore techno-science networks. Standard bibliometric and patent indicators are presented.
Then we explore different types of network maps — maps based on co-authorship, co-patenting and co-activity data. Different
network configurations occur for each type of map. Actors reach different levels of prominence in the different maps, but
most of them are active both in science and technology. This illustrates that to appreciate fully the range of science-technology
interplay, all three analyses need to be taken into account.