Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7591610 | Water drain tank or channel module | David Chernuta, Michael Garrett, Michael R. Whittemore | 2009-09-22 |
| 4257897 | Process for reabsorption and retention of phosphorous by activated biomass | David M. Nicholas | 1981-03-24 |