Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835244 | Use of organic carbon-containing minerals | John G. Whellock, Philip Souza Zacarias | 2004-12-28 |
| 6783585 | Carbon removal through partial carbon burn-out from coal ash used in concrete | Philip Souza Zacarias | 2004-08-31 |
| 6764544 | Process for incorporating coal ash into cement clinker | Alan Van Sloten | 2004-07-20 |
| 6755905 | Use of high carbon coal ash | John G. Whellock, Philip Souza Zacarias | 2004-06-29 |
| 6391105 | Enhancement of cement clinker yield | Kevin Cail, Paul Lehoux, Robert Kim Ungar, Donald Stephen Hopkins, James Edward Cross +1 more | 2002-05-21 |
| 5976243 | Process for producing cement clinker containing blast furnace slag | Alan Van Sloten, Kevin Cail | 1999-11-02 |
| 5928420 | Cement composition for alkali-reactive aggregate and for sulphate resistance | Michael D. Thomas, Philip Zacarias, Donald Stephen Hopkins, Kevin Cail | 1999-07-27 |
| 5849075 | Cementitious composition containing bottom ash as pozzolan and concretes and mortars therefrom | Donald Stephen Hopkins | 1998-12-15 |
| 5837052 | Process for producing cement clinker containing coal ash | Horace H. Compton, Syed Suhail Akhtar | 1998-11-17 |
| 5735947 | Cement with air-cooled slag and silica fume | Donald Stephen Hopkins | 1998-04-07 |
| 5223035 | Pozzolan blends | Donald Stephen Hopkins, Rayburn R. Anderson, Paul Lehoux | 1993-06-29 |