Marcum, W. R. (Inventor), Weiss, A. W. (Inventor), Labrier, D. P. (Inventor), Jesse, C. (Inventor), Jones, W. F. (Inventor), Kennedy, J. (Inventor), Phillips, A. M. (Inventor) & Nixon, C. G. (Inventor), Jul 2021, Patent No. 11,073,411
Norman, D. R. (Inventor), Yoon, W. Y. (Inventor), Jones, J. L. (Inventor), Haskell, K. J. (Inventor), Bennett, B. D. (Inventor), Tschaggeny, C. W. (Inventor) & Jones, W. F. (Inventor), Sep 2011, Patent No. 8017926