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Explore patent oppositions filed by Strom & Gulliksson 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: Jun 26, 2025
Patent NumberTitleApplicantOpposition Date

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EP3969718Punch And Inject Tool For Downhole Casing And Method For Use ThereofSHELL INTERNATIONALE RESEARCH MAATSCHAPPIJJan 16, 2024
EP3350131A Device For Purifying Water And Its UseELWATERMay 25, 2022
EP3571166Method For Purifying WaterKLEMOLAApr 28, 2022
EP3186197System And Method For Waste Water PurificationKEMPPAINENSep 11, 2019
EP3253912Recycling Of Man-Made Cellulosic FibersLENZINGAug 21, 2019