Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8167998 | Lightweight concrete compositions | Michael T. Williams, Rick Hughes, Michael R. Kelley, John K. Madish, Kristen VanBuskirk | 2012-05-01 |
| 7820094 | Lightweight concrete compositions | Michael T. Williams, Rick Hughes, Michael R. Kelley, John K. Madish, Kristen VanBuskirk | 2010-10-26 |
| 7790302 | Lightweight compositions and articles containing such | Michael T. Williams, David A. Cowan, John K. Madish, Kolapo Adewale, Roger Moore +1 more | 2010-09-07 |