Inventor · disambiguated record
James R. Piehl
Also filed as: PIEHL JAMES · PIEHL JAMES R
8 granted patents·1 pending application·238 citations·filing 1982–2023
89Inventor score
Top patents by PatentIndex Score
9 records- 0196US5250935AWaveform peak capture circuit for digital engine analyzerSNAP ON TOOLS CORP·Filed 1990·Granted Oct 5, 1993·61 cites·9 claims
- 0294US5245324ADigital engine analyzerSNAP ON TOOLS CORP·Filed 1991·Granted Sep 14, 1993·51 cites·9 claims
- 0385US4578755AMicroprocessor controlled timing/tachometer apparatusSNAP ON TOOLS CORP·Filed 1982·Granted Mar 25, 1986·27 cites·15 claims
- 0484US5247287ADigital engine analyzerSNAP ON TOOLS CORP·Filed 1991·Granted Sep 21, 1993·27 cites·20 claims
- 0575US5258753ADigital engine analyzerSNAP ON TOOLS CORP·Filed 1991·Granted Nov 2, 1993·20 cites·19 claims
- 0674US5396427AMethod and apparatus for determining relative contributions of individual cylinders of internal combustion engineSNAP ON TOOLS CORP·Filed 1992·Granted Mar 7, 1995·34 cites·12 claims
- 0754US2024226650A9Exercise Machine with Multi-Axis Positionable Arms and Circular Motion ResistancePIEHL JAMES·Filed 2023·Application pending·0 cites
- 0834US5788252AErgonomic handle for rolling manually propelled vehicleSNAP ON TECH INC·Filed 1996·Granted Aug 4, 1998·10 cites·16 claims
- 0934US5182512AMethod and apparatus for determining relative contributions of individual cylinders of internal combustion engine using contact tachometerSNAP ON TOOLS CORP·Filed 1990·Granted Jan 26, 1993·8 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →