Inventor · disambiguated record
Alfred Dratva
Also filed as: DRATVA ALFRED
4 granted patents·1 pending application·38 citations·filing 1998–2002
76Inventor score
Files withCIBA SC HOLDING AG4
Top patents by PatentIndex Score
5 records- 0167US6362138B1Heterocyclic thioethers as additives for lubricantsCIBA SC HOLDING AG·Filed 2000·Granted Mar 26, 2002·6 cites·12 claims
- 0266US6255259B1Phosphorus-free multifunctional additives for lubricantsCIBA SC HOLDING AG·Filed 2000·Granted Jul 3, 2001·8 cites·7 claims
- 0359US6150307AHeterocyclic thioethers as additives for lubricantsCIBA SC HOLDING AG·Filed 1998·Granted Nov 21, 2000·15 cites·8 claims
- 0446US6100406ABenzothiazolylthio or thiadiazolylthio substituted phenols as multifunctional additives for lubricantsCIBA SC HOLDING AG·Filed 1998·Granted Aug 8, 2000·9 cites·5 claims
- 0538US2004242437A1Antiwear performance of engine oils with $g(b)-dithiophosphorylated propionic acidsFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →