PATENTS

5,307,292 Method of Quantifying the Topographic Structure of a Surface

(April 26, 1994) Christopher A. Brown, William A. Johnsen, Patrick D. Charlies

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7,788,965 Portable Friction Testing Device

(September 7, 2010) William A. Arnold, Chenghsiung Lin, Christopher A. Brown, Torbjorn S. Bergstrom, Douglas J. Geiger

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9,651,466 Edge Sharpness Measurement

(May 16, 2017) Christopher Brown, Jocelyn Close, Jason Hopkins, Michael Dragonas, Frank Bruton

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STANDARDS

ISO TC213 WG15 

ISO TC213 WG16

ASME B46