Since 1994, Michiel Cramwinckel has been directly involved in 21 opposition proceedings against granted European patents. In recent years he has been involved in multiple lawsuits and potential conflicts for various clients. Since 2014 he has been the global patent conflict coordinator for one of his clients. Currently Cramwinckel Consultancy is active in one Opposition before the EPO Board of Appeal and is coordinating an Inter Parties Review before the USPTO.

Cramwinckel Consultancy can support (non-)European clients with drafting and filing of opposition papers against granted European patents and defending against patent infringement and enforcing Dutch and European Patents in The Netherlands.