Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4730558 | Electronic delayed-action explosive detonator | Friedrich Heinemeyer, Peter Roh, Ulrich Steiner, Edward Uden | 1988-03-15 |
| 4646640 | Process and apparatus for chronologically staggered initiation of electronic explosive detonating devices | Friedrich Heinemeyer, Peter Roh, Hansmartin Storrle | 1987-03-03 |