Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5770055 | Strainer for removing particles from effluent | Lars Peter Johannes Hedman | 1998-06-23 |
| 5032262 | Device in rinsing screens | — | 1991-07-16 |
| 4853116 | Device for collecting and discharging solid matter | — | 1989-08-01 |
| D299155 | Pair of step bar elements for an inclined walking beam-type bar screen employed in wastewater filtration | — | 1988-12-27 |
| 4413554 | Refuse compacting device | — | 1983-11-08 |