 Mitcham contrasts ‘humanities philosophy of technology’ to ‘engineering philosophy of technology’, where the latter refers to philosophical views developed by engineers or technologists as “attempts … to elaborate a technological philosophy” (1994: 17). Mitcham discusses only a handful of people as engineering philosophers of technology, however: Ernst Kapp, Peter Engelmeier, Friedrich Dessauer, and much more briefly Jacques Lafitte, Gilbert Simondon, Hendrik van Riessen, Juan David García Bacca, R. Buckminster Fuller and Mario Bunge. The label raises serious questions, however: several of them hardly classify as ‘engineers or technologists’ and it is also not very clear how the notion of ‘a technological philosophy’ should be understood. As philosophers these authors seem all to be rather isolated figures, whose work shows little overlap and who seem to be sharing mainly the absence of a ‘working relation’ with established philosophical disciplines. It is not so clear what sort of questions and concerns underlie the notion of ‘engineering philosophy of technology’. A larger role for systematic philosophy could bring it quite close to some examples of humanities philosophy of technology, for instance the work of Jacques Ellul, where the analyses would be rather similar and the remaining differences would be ones of attitude or appreciation.