1971-1978
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Bayer AG, Leverkusen: research, development, production management: dyes, organic intermediates
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1978-1982
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Bayer, USA: development: organic intermediates
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1982-2001
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Bayer-Pharma: production management, management Health-Safety-Environmental(HSE), process-/ plant safety, Bayer-representative in association of pharma companies with research (VFA), committee for Health-Safety-Environment(HSE)
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2002-2006
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Bayer Currenta: project leader SAP-EH&S, HSE-auditor, quality management information technology
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