| Patents for James R. Piehl |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 4,578,755 | Mar. 25, 1986 | J.R. Piehl, C.F. Govekar, R.O. Quinn | Microprocessor Controlled Timing/Tachometer Apparatus | |
| 5,245,324 | Sep. 14, 1993 | J.C. Sniegowski, M.C. Putrow, J.R. Piehl, M.B. Meeker, C.F. Govekar, G.D. Jonker | Digital Engine Analyzer | |
| 5,247,287 | Sep. 21, 1993 | J.C. Sniegowski, M.C. Putrow, J.R. Piehl, M.B. Meeker, C.F. Govekar, G.D. Jonker | Digital Engine Analyzer | |
| 5,250,935 | Oct. 05, 1993 | C.F. Govekar, G.D. Jonker, J.C. Sniegowski, M.C. Putrow, J.R. Piehl, M.B. Meeker | Waveform Peak Capture Circuit for Digital Engine Analyzer | |
| 5,258,753 | Nov. 02, 1993 | J.C. Sniegowski, M.C. Putrow, J.R. Piehl, M.B. Meeker, C.F. Govekar, G.D. Jonker | Digital Engine Analyzer | |
| 5,296,869 | Mar. 22, 1994 | J.C. Sniegowski, M.C. Putrow, J.R. Piehl, M.B. Meeker, C.F. Govekar, G.D. Jonker | Digital Engine Analyzer | |
| 5,396,427 | Mar. 07, 1995 | C.F. Govekar, G.S. Wollert, R.D. Braun, J.R. Piehl | Method and Apparatus for Determining Relative Contributions of Individual Cylinders of Internal Combustion Engine | |
| 5,788,252 | Aug. 04, 1998 | J.R. Piehl, G.S. Wollert, M.D. Schoenbeck, N.C. Rittmann Gasperi, D.D. Curry, K.C. Happ | Ergonomic Handle for Rolling Manually Propelled Vehicle | |
