Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10612698 | Pipe with embedded wire | Michael Maroschak | 2020-04-07 |
| 9958091 | Pipe with embedded wire | Michael Maroschak | 2018-05-01 |
| 9341289 | Corrugated drainage pipe with protuberances | Michael Maroschak | 2016-05-17 |
| 8753036 | Underground water retention system and associated methods | — | 2014-06-17 |
| 8240950 | Underground water retention system and associated methods | — | 2012-08-14 |
| 7661903 | Low-pressure dosing system for sewage disposal and associated methods | Michael Maroschak, Marc H. Maroschak, Scott M. Thomson | 2010-02-16 |
| 7632408 | Passive drain field system for wastewater treatment and associated methods | — | 2009-12-15 |
| 4681684 | Universal septic tank fitting | Michael Maroschak, Frederick P. Atchley | 1987-07-21 |