| 1949 | J.A. Lettier, D.F. Fink, N. B. Wilson and F.F. Farley |
| 1950 | Alvyn Day |
| 1951 | E.C. Hughes and H.F. Hardman |
| 1952 | N.W. McLeod |
| 1953 | James E. Rice |
| 1954 | F.M. Williams and F.W. Kimble |
| 1955 | R.L. Griffin, T.K. Miles, and C.J. Penther |
| 1956 | O.B. Andersland and W.H. Goetz |
| 1957 | Jean Lefebvre |
| 1958 | Luke Corbett and R.E. Swarbrick |
| 1959 | Robert F. Baker and H.S. Papazian |
| 1960 | L.E. Corbett and R.E. Swarbrick |
| 1961 | Carl L. Monismith, K.E. Secor and E.W. Blackman |
| 1962 | M. Livneh and E. Shklarsky |
| 1963 | F.N. Hveem, E. Zube and J. Skog |
| 1964 | James F. Shook |
| 1965 | C.L. Monismith, G.A. Secor and K.E. Secor |
| 1966 | R.J. Schmidt and L.E. Santucci |
| 1967 | John Skog |
| 1968 | A.W. Sisko and L.C. Brunstrum |
| 1969 | P.S. Pell and I.F. Taylor |
| 1970 | R.G. Hicks and F.N. Finn |
| 1971 | John A. Deacon |
| 1972 | James L. Duthie |
| 1973 | Willem Heukelom |
| 1974 | T.R.J. Fabb |
| 1975 | M.W. Witczak |
| 1976 | A.I.M. Claessen, R. Ditmarsch and C.P. Valkering |
| 1977 | Frank R. Meyer, Edward T. Hignell, G.J.A. Kennepohl and Ralph C.G. Haas |
| 1978 | J.A.N. Scott |
| 1979 | V.P. Puzinauskas |
| 1980 | Harry S. Pink, Richard E. Merz and David S. Bosniack |
| 1981 | Dallas N. Little, Jr., R.J. Holmgreen and J.A. Epps |
| 1982 | G.R. Morris, J.A. DiVito and N.J. Chen |
| 1983 | Teh-Chang Lee, Ronald L. Terrel and Joe P. Mahoney |
| 1984 | John H. Tenison, Jr. |
| 1985 | C.L. Monismith, J.A. Epps and F.N. Finn |
| 1986 | Harold W. Muncy, Gayle N. King and J.B. Prudhomme |
| 1987 | G.A. Huber and G.H. Heiman |
| 1988 | Joseph L. Goodrich |
| 1989 | P.S. Kandhal, C. Lubold, Jr. and F.L. Roberts |
| 1990 | C.B. Dawley, B.L. Hogweide and K.O. Anderson |
| 1991 | John D’Angelo and Ted Ferragut |
| 1992 | Donald W. Christensen, Jr. and David A. Anderson |
| 1993 | Ted Vinson and D. Jung |
| 1994 | Ronald Reese |
| 1995 | Timothy Aschenbrener, Robert McGennis and Ronald Terrel |
| 1996 | Manual G. Rodr¡quez, Geoffrey Morrison, Joshua vanLoon and Simon Hesp |
| 1997 | Y. Richard Kim, Hyun-Jong Lee and Dallas Little |
| 1998 | Leslie Myers, Reynaldo Roque and Byron Ruth |
| 1999 | Reynaldo Roque, Zhiwang Zhang and Bhavani Sankar |
| 2000 | Mary Stroup-Gardiner and M. Law |
| 2001 | L. Tashman, E. Masad, B. Peterson and H. Saleh |
| 2002 | K.J. Jenkins, A.A.A. Molenaar, J.L.A. de Groot, M.F.C. van de Ven |
| 2003 | D. Christensen, T. Pellinen and R. Bonaquist |
| 2004 | R. Roque, B. Birgisson, C. Drakos and B. Dietrich |
| 2005 | R. Dongre, L. Myers, J. D’Angelo, C. Paugh and J. Gudimettla |
| 2006 | Yongrak Kim, Hyunjong Lee, Dallas Little and Y. Richard Kim |
| 2007 | Brice Delaporte, Herve Di Benedetto, Pierre Chaverot, Gilles Gauthier |
| 2008 | Emin Kutay, Nelson Gibson, John Youtcheff |
| 2009 | A. LaCroix, Y.R. Kim, M. Sakhaeifar |
| 2010 | F. Zhou, S. Hu, T. Scullion |
| 2011 | A. Montepara, E. Romeo, M. Isola, G. Tebaldi |
| 2012 | Y. Chen, G. Tebaldi, R. Roque, G. Lopp, Y. Su |
| 2013 | N. Roohi, P. Teymourpour, H. Bahia |
| 2014 | F. Zhou, S. Hu, T. Scullion, R. Lee |
| 2015 | A. Hekmatfar, A. Shah, R. McDaniel, G. Huber, J. Haddock |
| 2016 | S. Diefenderfer, B. Bowers, H. Nair |
