Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8745930 | Precast composite structural floor system | David H. Platt, John E. Charchenko, Daryl G. Hodgson | 2014-06-10 |
| 8499511 | Precast composite structural floor system | David H. Platt, John E. Charchenko, Daryl G. Hodgson | 2013-08-06 |
| 8453406 | Precast composite structural girder and floor system | David H. Platt, John E. Charchenko, Daryl G. Hodgson | 2013-06-04 |
| 8381485 | Precast composite structural floor system | David H. Platt, John E. Charchenko, Daryl G. Hodgson | 2013-02-26 |
| 8297017 | Precast composite structural floor system | David H. Platt, John E. Charchenko, Daryl G. Hodgson | 2012-10-30 |
| 8161691 | Precast composite structural floor system | David H. Platt, John E. Charchenko, Daryl G. Hodgson | 2012-04-24 |