Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8858704 | Low density cementitious compositions using limestone | Wes Woytowich, Bill Carruthers, Greg Daderko | 2014-10-14 |
| 8435930 | Low density cementitious compositions using lime kiln dust | Wes Woytowich, Bill Carruthers, Greg Daderko | 2013-05-07 |
| 8394744 | Low density cementitious compositions | Wes Woytowich, Bill Carruthers, Benoit Cotnoir, Richard McCorkle, Eric Bowman | 2013-03-12 |
| 6391105 | Enhancement of cement clinker yield | David Bridson Oates, Kevin Cail, Robert Kim Ungar, Donald Stephen Hopkins, James Edward Cross +1 more | 2002-05-21 |
| 5223035 | Pozzolan blends | Donald Stephen Hopkins, David Bridson Oates, Rayburn R. Anderson | 1993-06-29 |