John C. Ratliff, CIH, CSP
Industrial Hygienist, Applied Materials, Inc.
John Ratliff has worked in a number of industries as a safety professional since 1978. Ten years ago, John began working in the semiconductor industry with Applied Materials, Inc. John has been a Certified Safety Professional since 1985, and a Certified Industrial Hygienist since 2006. Ergonomics has been one of his interests for many years. John gave a presentation on the NIOSH Lifting Equation in 1990 to the ASSE Professional Development Conference in Washington D.C., and has continued to develop his Excel spreadsheet for the semiconductor industry.