Inventor · disambiguated record
Ronald L. Ketchum
Also filed as: KETCHUM RONALD L
5 granted patents·286 citations·filing 1970–1990
84Inventor score
Top patents by PatentIndex Score
5 records- 0191US4560873ASitu multi-channel combustion gas analyzerLEAR SIEGLER INC·Filed 1983·Granted Dec 24, 1985·112 cites·16 claims
- 0290US4055801AAutomatic electronic test equipment and methodPIKE HAROLD L·Filed 1970·Granted Oct 25, 1977·90 cites·12 claims
- 0380US4974455ADilution extractive probeLEAR SIEGLER MEASUREMENT CONTR·Filed 1989·Granted Dec 4, 1990·50 cites·13 claims
- 0465US5028790AApparatus for full-system zero check and window soiling measurement and correction for transmissometersLEAR SIEGLER MEASUREMENT CONTR·Filed 1990·Granted Jul 2, 1991·32 cites·10 claims
- 0527US5053623APhotometric analyzer for differential total reduced sulfur measurement by comparison with sample gasLEAR SIEGLER MEASUREMENT CONTR·Filed 1990·Granted Oct 1, 1991·2 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →