FP

Friedrich Preisser

LG Leybold Durferrit Gmbh: 2 patents #1 of 13Top 8%
DA Degussa Ag: 1 patents #35 of 166Top 25%
📍 Heitersheim, DE: #1 of 5 inventorsTop 20%
Overall (1994): #13,464 of 165,921Top 9%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5372655 Method for the treatment of alloy steels and refractory metals Peter Minarski, Albrecht Melber, Klaus Zimmerman 1994-12-13
5362031 Method and apparatus for the automatic monitoring of operating safety and for controlling the progress of the process in a vacuum heat-treatment oven Paul Heilmann, Peter Minarski 1994-11-08
5292555 Process for applying nitride layers to titanium 1994-03-08