Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4569693 | Process for improving the flowability and increasing the bulk density of high-surface area valve metal powders | Wolf-Wigand Albrecht, Uwe Papp, Rudiger Wolf | 1986-02-11 |
| 4548672 | Process for treating the surface of valve metals with chalcogens | Wolf-Wigand Albrecht, Uwe Papp, Rudiger Wolf | 1985-10-22 |
| 4537641 | Process for producing valve-metal anodes for electrolytic capacitors | Wolf-Wigand Albrecht, Uwe Papp, Rudiger Wolf | 1985-08-27 |
| 4446116 | Process for recovering niobium and/or tantalum compounds from such ores further containing complexes of uranium, thorium, titanium and/or rare earth metals | Bruno E. Krismer | 1984-05-01 |