Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9554669 | Adjustable grilling platform | — | 2017-01-31 |
| 8167998 | Lightweight concrete compositions | Tricia Ladely (Guevara), Michael T. Williams, Michael R. Kelley, John K. Madish, Kristen VanBuskirk | 2012-05-01 |
| 8048219 | Method of placing concrete | Daniel Woolfsmith, Michael T. Williams, Michael R. Kelley, John K. Madish, Kristen Van Buskirk +1 more | 2011-11-01 |
| 7820094 | Lightweight concrete compositions | Tricia Ladely (Guevara), Michael T. Williams, Michael R. Kelley, John K. Madish, Kristen VanBuskirk | 2010-10-26 |
| 7658797 | Lightweight concrete compositions | Tricia Guevara, Michael T. Williams, Michael R. Kelley, John K. Madish, Kristen Van Buskirk | 2010-02-09 |
| 7648574 | Lightweight concrete compositions | Tricia Guevara, Michael T. Williams, Michael R. Kelley, John K. Madish, Kristen Van Buskirk | 2010-01-19 |