Inventor · disambiguated record
John F. Sieberth
Also filed as: SIEBERTH JOHN F
3 granted patents·91 citations·filing 1990–1992
73Inventor score
Top patents by PatentIndex Score
3 records- 0188US5464549AOil soluble dispersants suitable for use in fuels and lubricantsETHYL CORP·Filed 1991·Granted Nov 7, 1995·73 cites·1 claims
- 0272US5091112AReducing copper corrosiveness of organic sulfidesETHYL PETROLEUM ADDITIVES INC·Filed 1990·Granted Feb 25, 1992·12 cites·22 claims
- 0356US5208382AReducing copper corrosiveness of organic sulfidesETHYL PETROLEUM ADDITIVES INC·Filed 1992·Granted May 4, 1993·6 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →