Pharsight

OMYA patents facing oppositions

Top patents of OMYA facing oppositions at the European Patent Office (EPO).

Patent Number Grant Date Patent Title Expected Expiration Date Facing Oppositions Activity Alert
EP2949707B1 Process for the preparation of crumbs comprising calcium carbonate NA 2
EP3031778B1 Improved process for the production of precipitated calcium carbonate NA 1
EP3018175B1 A process for the preparation of flocculated filler particles NA 1
EP3545022B1 24 Aug, 2022 Surface-treated fillers for biaxially oriented polyester films NA 1
EP3383939B1 12 Jan, 2022 Surface-treated fillers for ultrathin breathable films NA 1
EP3418333B1 17 Mar, 2021 Process for the preparation of crumbles comprising calcium carbonate NA 1
EP3245257B2 13 Nov, 2019 Surface-treated calcium carbonate with improved stability in environments with a ph of 4.5 to 7 NA 1
EP1969186B1 24 Apr, 2019 Calcium carbonate barrier films and uses thereof NA 1
EP2883573B2 25 Oct, 2017 Abrasive cleaning composition NA 1
EP2975004B1 30 Aug, 2017 Acid wastewater treatment NA 1
EP1891269B1 05 Jul, 2017 Polymer-pigment hybrids for use in papermaking NA 1
EP2623466B8 29 Mar, 2017 Process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its use NA 1
EP2723819B1 01 Mar, 2017 Process for the production of precipitated calcium carbonate, precipitated calcium carbonate and uses thereof NA 1