Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4969671 | Gas-tight joint for pipe linings and risers | Heinz Gross, Friedrich-Otto Koch, Matthias Lang, Adolf Peeck, Wolfgang Venema +2 more | 1990-11-13 |
HS
Hans Spliethoff
Overall (All Time): #3,914,969 of 4,157,543Top 95%
1
Patents All Time