KK

Karl-Heinz Kummer

SA Sms Siemag Ag: 2 patents #67 of 318Top 25%
EG Erno Raumfahrttechnik Gmbh: 1 patents #14 of 74Top 20%
Overall (All Time): #1,555,280 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8262985 Smelting or reduction furnace, in particular electric arc furnace with an open, semi-closed or closed configuration Dieter Borgwardt 2012-09-11
7850903 Tapping channel for a metallurgical furnace Horst-Dieter Borgwardt, Jürgen Kunze 2010-12-14
4727959 Assembly of large structures 1988-03-01