Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8343343 | Underdrain apparatus | Edward Kuchtjak, Keith Baker | 2013-01-01 |
| 8069630 | System and method for interlocking support blocks | David Slack | 2011-12-06 |
| 7997041 | System method for interlocking support blocks | David Slack, Joseph M. Bonazza | 2011-08-16 |
| 7396466 | Method and system for filtration of wastewater | Joseph M. Bonazza, Donald McCarty, David Slack | 2008-07-08 |
| 7141164 | Snap locking underdrain block | David Slack | 2006-11-28 |