Degree in engineering, University Grenoble, 1974. Diploma in mechanical engineering, University Hannover, 1977. Doctor of Philosophy, University Hannover, 1983.
Research assistant Institute for Turbo-Machines, U. Hannover, 1978-1980; patent engineer, Patent Attorney' General’ s Office Peerbooms, Wuppertal, 1983-1985; senior researcher, Fraunhofer Institute for Sys. and Innovation Research, Karlsruhe, 1986-1990; deputy head, Fraunhofer Institute for Sys. and Innovation Research, Karlsruhe, since 1991. Lecturer Polytech. School, Karlsruhe, 1987-1988, U. Karlsruhe, since 1998.
Member Applied Economics Association (conference organizing committee since 1996), International Association Producers and Users of Online Patent Information, German Association for Science and Technology Research, German Association for Sociology.
Married Sylvia Ilse Bottcher, October 8, 1982. Children: Thomas, Christina.