1. Braskem S.a. (7 from 123 patents)

2. Braskem America, Inc. (2 from 72 patents)

3. Universidade Federal Do Rio Grande Do Sul (2 from 9 patents)

4. Universidade Federal Do Rio Grande Do Sul-ufrgs (14 patents)

1. 10774205 - Ethylene alpha-olefin copolymers with multimodal comonomer distributions and processes for obtaining the same

2. 9994648 - Metallocene catalyst supported by hybrid supporting means, process for producing same, polymerization process for producing an ethylene homopolymer or copolymer with broad or bimodal molar mass distribution, use of the supported metallocene catalyst and ethylene polymer with broad or bimodal molar mass distribution

3. 9988465 - Metallocene catalyst supported by hybrid supporting means, process for producing same, polymerization process for producing an ethylene homopolymer or copolymer with broad or bimodal molar mass distribution, use of the supported metallocene catalyst and ethylene polymer with broad or bimodal molar mass distribution

4. 9822199 - Metallocene catalyst based on a transition metal of groups 4 or 5 of the periodic table immobilized on a support modified with soluble hybrid silica, method for producing and using same

5. 9695254 - Metallocene catalyst supported by hybrid supporting means, process for producing same, polymerization process for producing an ethylene homopolymer or copolymer with broad or bimodal molar mass distribution, use of the supported metallocene catalyst and ethylene polymer with broad or bimodal molar mass distribution

6. 9458258 - Process for the preparation of catalytic support and supported bimetallic catalysts for production of homopolymers and copolymers of ethylene with α-olefins, of high and ultra high molecular weight and with broad molecular weight distribution in slurry, bulk and gas phase processes and products thereof

7. 9352308 - Solid catalyst component for polymerization and copolymerization of ethylene and process for obtaining the same

8. 9212235 - Process of preparation of catalytic support and supported bimetalic catalysts for production of homopolymers and copolymers of ethylene with alpha-olefins of high and ultra high molecular weight and with broad molecular weight distribution in slurry, bulk and gas phase processes and products thereof

9. 8324126 - Process of preparation of catalytic support and supported metallocene catalysts for production of homopolymers and copolymers of ethylene with alfa-olefins, of high and ultra high molecular weight and with broad molecular weight distribution in slurry, bulk and gas