Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7174954 | Heat exchanger | Erwin Schwartz | 2007-02-13 |
| 5862610 | Method for coating dry pellets made of waste bio-solids with waste bio-solids | — | 1999-01-26 |
| 4356131 | Circulating device for liquids containing long-chain molecules | — | 1982-10-26 |
| 4293506 | Liquid circulating device | — | 1981-10-06 |
| 4187263 | Liquid circulating device | — | 1980-02-05 |