Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4983420 | Method of applying a thermally black layer to a heating member for an indirectly heated cathode | Johannes J. Ponjee, Angela C.L. Van De Poel | 1991-01-08 |
SW
Stefan M. Wolfrum
Overall (All Time): #3,867,349 of 4,157,543Top 95%
1
Patents All Time