Under CopyrightFrietsch, RainerRainerFrietschNeuhäusler, PeterPeterNeuhäuslerRothengatter, OliverOliverRothengatter2022-03-0720.9.20122012https://publica.fraunhofer.de/handle/publica/29601010.24406/publica-fhg-296010en303600Patent applications - structures, trends and recent developmentsreport