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Explore patent oppositions filed by Laboratorios Leon Farma against competitors, revealing strategic technology disputes and market positioning. Monitor opposition details, timelines, and disputed innovations to understand competitive dynamics and IP enforcement strategy.

Last updated on: Jul 17, 2025
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

EP2478907Methods And Compositions For Treating CancerCOUGAR BIOTECHNOLOGYJan 14, 2022
EP2040683Pharmaceutical Composition Containing A Tetrahydrofolic AcidBAYERDec 1, 2017

Explore Laboratorios Leon Farma's recently opposed patents, revealing key competitive challenges and strategic patent disputes in the industry. Track oppositions filed by competitors to understand technology battlegrounds and assess potential risks.

Last updated on: Jul 17, 2025
Patent NumberGrant DateTitleTotal Oppositions
EP3313408Dec 6, 2023Drospirenone-Based Contraceptive For A Female Patient Affected With Excess Weight1
EP3632448Jan 12, 2022Pharmaceutical Composition Comprising Drospirenone And Contraceptive Kit2