DH

Dietmar Hellmann

HQ Heraeus Quarzglas: 5 patents #47 of 287Top 20%
📍 Gelnhausen, DE: #44 of 229 inventorsTop 20%
Overall (All Time): #1,047,478 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6306489 Quartz glass component for a reactor housing a method of manufacturing same and use thereof Johann Leist 2001-10-23
6150006 Quartz glass component used in the production of semiconductors Gerard Lebrun, Jörg Becker 2000-11-21
5807416 Silica glass member with glassy carbon coating method for producing the same Katsuhiko Kemmochi, Christian Gebauer 1998-09-15
5736206 Molded body of quartz glass and process for the production of a molded body of quartz glass Wolfgang Englisch, Stephan Moritz 1998-04-07
5562774 Coated quartz glass component Poul E. Breidenbach, Helmut Leber 1996-10-08