Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6212943 | Method and apparatus for the sonic measurement of sludge and clarity conditions during the treatment on waste water | Frederick L. Maltby, Yang Wang, L. Jonathan Kramer | 2001-04-10 |
| 6062070 | Method and apparatus for the sonic measurement of sludge and clarity conditions during the treatment of waste water | Frederick L. Maltby, Yang Wang, L. Jonathan Kramer | 2000-05-16 |