PATENTS

1. Stenstrom, M.K., B. E. Stuckman and C.D. Perttunen, "Methods and Systems for Controlling a Continuous Medium Filtration System," US Patent 5,635,074, June 3, 1997. (Display)
2. Stenstrom, M.K. W.L. Reber, and C.D. Perttunen, "Methods and Systems for Locating an Underground Sewer Using a Buoy," US Patent 5,790,476, August 4, 1998. (Display)
3. Reber, W.L., M.K Stenstrom and C.D. Perttunen, "Molecular Detection Apparatus," US Patent 5,948,694, September 7, 1999. (Display)
4. Reber, W.L, C.D. Perttunen and M.K. Stenstrom, "Apparatus for Storing and Disinfecting a Fluid," US Patent 6,042,720, March 28, 2000.(Display)
5. Reber. W.L., C.D. Perttunen and M.K. Stenstrom, "Portable Apparatus for Storing and Disinfecting a Fluid Using Ultraviolet Source," US Patent 6,180,003, January 30, 2001. (Display)