Inventor · disambiguated record
Sofia Sirak
Also filed as: SIRAK SOFIA · SIRAK SOFIA M
10 granted patents·2 pending applications·11 citations·filing 2013–2023
80Inventor score
Top patents by PatentIndex Score
12 records- 0185US11180712B2Polymeric-inorganic nanoparticle compositions, manufacturing process thereof and their use as lubricant additivesEVONIK OPERATIONS GMBH·Filed 2019·Granted Nov 23, 2021·3 cites·20 claims
- 0282US11198833B2Polymeric-inorganic nanoparticle compositions, manufacturing process thereof and their use as lubricant additivesEVONIK OPERATIONS GMBH·Filed 2019·Granted Dec 14, 2021·2 cites·20 claims
- 0378US10954466B2Polymeric-inorganic particles useful as lubricant additivesEVONIK OPERATIONS GMBH·Filed 2017·Granted Mar 23, 2021·2 cites·26 claims
- 0474US9580529B2Preparation of low-viscosity polymersSIRAK SOFIA M·Filed 2013·Granted Feb 28, 2017·4 cites·14 claims
- 0559US11999901B2Multifunctional wax dispersant for subterranean chemical applicationsEVONIK OPERATIONS GMBH·Filed 2023·Granted Jun 4, 2024·0 cites·20 claims
- 0656US12454641B2Multifunctional wax dispersant for subterranean chemical applicationsEVONIK OPERATIONS GMBH·Filed 2023·Granted Oct 28, 2025·0 cites·20 claims
- 0756US12252661B2Process for preparing homo- and copolymers of alkyl (meth)acrylates with low residual monomer contentEVONIK OPERATIONS GMBH·Filed 2021·Granted Mar 18, 2025·0 cites·20 claims
- 0856US2025002614A1Process for preparing low molecular weight polyacrylates and products thereofEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 0951US10787623B2Hydrogenated polybutadienes useful as lubricant additivesEVONIK OPERATIONS GMBH·Filed 2018·Granted Sep 29, 2020·0 cites·13 claims
- 1044US11421180B2Vegetable oils with improved low temperature storage stabilityEVONIK OPERATIONS GMBH·Filed 2019·Granted Aug 23, 2022·0 cites·21 claims
- 1143US11359042B2Antiwear copolymers and lubricant compositionsEVONIK OPERATIONS GMBH·Filed 2017·Granted Jun 14, 2022·0 cites·16 claims
- 1242US2025011637A1Ethylene vinyl acetate-based dispersions suitable as pour point depressants with improved performance and stabilityEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →