1
Heinrich Deibig, Helmut Heide, Roland Reiner, Kari Koster: Bone replacement or prosthesis anchoring material. Batelle Institut e V, Fisher Christen & Sabol, March 11, 1980: US04192021 (107 worldwide citation)

Bone replacement or prosthesis anchoring material on the basis of sintered calcium phosphates which consists of a mixture of calcium phosphates with low or high-molecular-weight organic substances. More specifically, the anchoring material consists of a mixture of calcium phosphates composed of CaO ...


2
Siegbert Erlenkamper, Jurgen Eisenblatter: Vessel for bulk materials. Batelle Institut e V, Birch Stewart Kolasch & Birch, June 30, 1987: US04676098 (6 worldwide citation)

A vessel for bulk materials is described whose level can be continuously determined from outside during the filling or emptying process. To this end, at least one AE (acoustic emission) transducer is mounted at each of the levels of the vessel which determine full or empty states. An acoustic wavegu ...