CDEK
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JRH Biosciences

For profit
Phase 1Phase 2Phase 3Phase 4
Acquired by Sigma-Aldrich → Merck KGaA → Merck Serono on Jan 1, 2005

Timeline

1970s

  1. Jan 1, 1971

    JRH Biosciences— Founded

2000s

  1. Jan 1, 2005

    Sigma-Aldrich— Acquired By

  2. Jan 1, 2006

    Merck Serono— Now

Details

Founded
Lenexa, KS, US Jan 1, 1971