Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6379545 | Modular wastewater treatment system | Johan Perslow, James A. Matthews | 2002-04-30 |
| 6168349 | System for lining a bank of a waterway | Johan Perslow | 2001-01-02 |
| 6132614 | Modular wastewater treatment system | Johan Perslow, James A. Matthews | 2000-10-17 |
| 4910414 | Bottoming cycle | — | 1990-03-20 |