Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9309989 | Flow control device | Timothy Joel Lang, Douglas Kim Graham | 2016-04-12 |
| 9290923 | Flow control device for a storm water management system | Timothy Joel Lang, Douglas Kim Graham | 2016-03-22 |