Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11286205 | Hydrophobic concrete mixture | — | 2022-03-29 |
| 6833091 | Method for injecting of foamed concrete and a foamed concrete | Ingemar Johansson, Kenth Imrell | 2004-12-21 |
| 6561737 | Arrangement for post preparation of an injection compound | Mats Bränström | 2003-05-13 |
| 6022407 | Concrete mixture which yields concrete having high strength at varying density, method for producing the mixture and the concrete, and use of an anionic additive | Kjell Stridh, Ingemar Johansson, Marita Naslund | 2000-02-08 |
| 5160540 | Method for producing of concrete with controllable density | Ingemar Johansson | 1992-11-03 |