Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5104594 | Drying the surface of a fresh concrete body | Claus Flohrer, Andreas Schaab | 1992-04-14 |
| 4824022 | Method of and apparatus for applying a sprayed concrete layer to a surface | Gunter Brockmann, Richard Pohl | 1989-04-25 |
| 4804563 | Method and apparatus for the spray placing of concrete layers | Gunter Brockmann, Richard Pohl | 1989-02-14 |
| 4789267 | Method of and apparatus for concrete tunnel lining | Siegmund Babendererde, Otto Braach | 1988-12-06 |
| 4687374 | Method of and apparatus for concrete tunnel lining | Siegmund Babendererde, Otto Braach | 1987-08-18 |
| 4670315 | Process for providing a synthetic resin coating on a concrete structure | Rolf Wichern | 1987-06-02 |
| 4309610 | Method of determining the location, orientation and pattern of reinforcing members in reinforced concrete | — | 1982-01-05 |