Patent Oppositions in separating materials industry

Explore the competitive field of separating materials where companies are constantly innovating to stay ahead. Discover the latest patent opposition trends, top companies filing and facing patent oppositions, and the most recent patents under dispute. Stay informed on patent activity in separating materials technology and learn how to protect your intellectual property.

Explore the top companies that have filed the most patent oppositions in the technology industry.

Explore the top companies that have faced the most patent oppositions in the technology industry.

Last updated on: Feb 19, 2026
CompanyTotal Oppositions
BASF26
JOHNSON MATTHEY PUBLIC21
AMGEN16
MANNHUMMEL14
RHODIA OPERATIONS10
MANN HUMMEL9
EUROFILTERS9
DPX9
CASALE9
DSM ASSETS9

Explore the top law firms that have filed the most patent oppositions in the technology industry.

Patent challenges are becoming increasingly common in the separating materials industry as companies work to protect their innovations in a highly competitive market. These legal battles can significantly impact the development and release of new technologies. Below is a list of the latest patents that have been opposed in the separating materials industry, offering a snapshot of the ongoing struggles over intellectual property rights. For anyone involved in this industry, understanding these patent disputes is essential for navigating its future.

Last updated on: Feb 19, 2026
Patent NumberTitleApplicantOpposition DateOpposition Name
A Crankcase Ventilation SystemGRIMALDIJan 2, 2026MERCEDES BENZ GROUP
A Crankcase Ventilation SystemGRIMALDIDec 18, 2025DAIMLER TRUCK
Table Water Filtering Device With A Change DisplayBWT HOLDINGDec 17, 2025BRITA
Water Filter Cartridge With Two Concentrically Arranged Water Filter Cartridge OutletsACLARIS WATER INNOVATIONSDec 17, 2025BRITA
A Crankcase Ventilation SystemGRIMALDIDec 17, 2025ALFDEX
Transition Metal/Zeolite Scr CatalystsJOHNSON MATTHEY PUBLICDec 11, 2025BASF MOBILE EMISSIONS CATALYSTS
Nonwoven Fabrics Including Recycled PolyesterBERRYDec 2, 2025CARL FREUDENBERG
Process For Separating A Mixture With Measurement Of Purity Or Yield By An Online DetectorNOVASEP PROCESSNov 6, 2025HOFFMANN EITLE
ShipMITSUBISHI SHIPBUILDINGOct 27, 2025EVERLLENCE
Anti-Foaming Magnesium Hydroxide SuspensionTIMAB MAGNESIUMOct 1, 2025OMYA

To stay ahead in the competitive separating materials industry, companies are constantly innovating. Here are the top patents facing oppositions in the separating materials industry. Stay informed on the latest opposition trends and learn how to protect your intellectual property.

Last updated on: Feb 19, 2026
Patent NumberPublication DateTitleApplicantTotal Oppositions
Sep 27, 2023Charged Depth Filtration Of Antigen-Binding ProteinsAMGEN8
Aug 7, 2024Charged Depth Filtration Of Antigen-Binding ProteinsAMGEN7
Oct 23, 2024Methods Of Agricultural Production Of Brassica Carinata Oilseed CropNUSEED INNOVATION5
Jan 10, 2024Paper Core Filter Module, Method For Producing Such A Paper Core Filter Module And Paper Core Filter Module Wall Comprising A Number Of Such Paper Core Filter ModulesNEUFILTER5
Mar 26, 2025A Crankcase Ventilation SystemGRIMALDI4
May 6, 2020A Method Of Weak Partitioning ChromatographyWYETH4
Oct 30, 2019Method For Purification Of A Co2 StreamCASALE4
Nov 29, 2017Filter Device And Filter ElementHYDAC FILTERTECHNIK4
Dec 13, 2017Method For Treating Impurities Contained In Exhaust Gases Of Ships, Ship With Exhaust Gas Scrubber, And Purification UnitLANGH TECH3
Sep 18, 2019Filter For Industrial Dust Removal Having A Sealing StripBWF TEC3