Rosangela Pirri
32Patents
5h-index
39Co-inventors
69Inventor score
Filing activity: Apr 17, 1992 → Jul 14, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5555936A | Scleroglucan gel applied to the oil industry | Chemistry; Metallurgy | 36 | Expired |
| US6353065B1 | Emulsion polymerization in the presence of a stable free radical | Chemistry; Metallurgy | 26 | Expired |
| US6451498B1 | Photosensitive composition | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5224988A | Process for improving the dispersibility and filterability of scleroglucan powders | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5322123A | Use of gel-based compositions for reducing the production of water in oil- or gas-producing wells | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7195820B2 | Core-shell polymers having hydrophilic shells for improved shell coverage and anti-blocking properties | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7378477B2 | Inorganic deposit inhibitors, in particular in oil wells, particularly in high pressure / high temperature conditions | Chemistry; Metallurgy | 4 | Expired |
| US8816008B2 | Impact modifier and impact modified thermoplastic composition | Emerging Cross-Sectional Technologies | 3 | Active |
| US11390776B2 | (Meth)acrylic adhesive composition, its method of preparation and its use | Chemistry; Metallurgy | 3 | Active |
| US8378013B2 | Hybrid impact modifiers and method for preparing the same | Chemistry; Metallurgy | 3 | Active |
| US10316127B2 | Process of manufacturing a multistage polymer, its composition, its use and composition comprising it | Chemistry; Metallurgy | 2 | Active |
| US8859678B2 | Thermoplastic composition comprising a thermoplastic matrix and a terpolymer of alkyl methacrylate, alkyl acrylate and a styrene monomer | Emerging Cross-Sectional Technologies | 2 | Active |
| US10513603B2 | Composition comprising a multistage polymer, its method of preparation and its use | Chemistry; Metallurgy | 2 | Active |
| US5323857A | Process for enhancing oil recovery using scleroglucan powders | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10435518B2 | Polymer powder composition and its method of preparation | Chemistry; Metallurgy | 1 | Active |
| US6818700B1 | Detergent biodegradable polyacrylates | Chemistry; Metallurgy | 1 | Expired |
| US10597499B2 | Polymer composition, its method of preparation, its use and composition comprising it | Chemistry; Metallurgy | 0 | Active |
| US11384236B2 | Liquid (meth)acrylic composition comprising a multistage polymer and a (meth)acrylic monomer, its method of preparation and its use | Chemistry; Metallurgy | 0 | Active |
| US10703866B2 | Multistage polymer powder composition, its method of preparation and use | Chemistry; Metallurgy | 0 | Active |
| US10851231B2 | Polymer composition with filler, its method of preparation and use | Chemistry; Metallurgy | 0 | Active |
| US8466214B2 | Core-shell impact modifiers for transparent polymer matrices | Emerging Cross-Sectional Technologies | 0 | Active |
| US12203014B2 | (Meth)acrylic composition, its method of preparation and its use | Chemistry; Metallurgy | 0 | Active |
| US10392491B2 | Halogenated polymer composite composition, its manufacturing process and its use | Chemistry; Metallurgy | 0 | Active |
| US10968341B2 | Liquid composition comprising a multistage polymer, its method of preparation and its use | Chemistry; Metallurgy | 0 | Active |
| US6900171B1 | Polyacrylates with improved biodegradability | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.