Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10689302 | System, method and apparatus for entraining air in concrete | Norman Scott Smith | 2020-06-23 |
| 10532954 | System, method and apparatus for entraining air in concrete | Norman Scott Smith | 2020-01-14 |
| 9593050 | System, method and apparatus for entraining air in concrete | Norman Scott Smith | 2017-03-14 |
| 9481607 | System, method and apparatus for manufacturing stable cement slurry for downhole injection | — | 2016-11-01 |
| 8408781 | System, method and apparatus for entraining air in concrete | Norman Scott Smith | 2013-04-02 |
| 6153005 | Foamed concrete composition and process | Martha A. Welker, Mark Welker, Mark A. Justman, Randy S. Hendricksen | 2000-11-28 |