Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11530147 | Biofilm carriers for use in wastewater treatment | Thomas E. Frankel, Todd D. Ritter, Benjamin Edward Kang, Robert G. Freudenberg, Kelsey A. Bennett | 2022-12-20 |
| 10773982 | Diffuser assembly | Thomas E. Frankel, Todd D. Ritter | 2020-09-15 |
| 10633267 | Fine bubble diffuser assembly | Thomas E. Frankel, Todd D. Ritter | 2020-04-28 |
| 9678091 | In situ monitoring for wastewater treatment systems and the like | Eric D. Duden, Marc D. Kessman, Thomas E. Frankel, Todd D. Ritter | 2017-06-13 |
| 9539550 | Coarse bubble diffuser for wastewater treatment | Thomas E. Frankel, Todd D. Ritter | 2017-01-10 |
| 9498756 | Assembly for wastewater treatment | Thomas E. Frankel, Todd D. Ritter | 2016-11-22 |
| 9440200 | Tube diffuser | Thomas E. Frankel, Todd D. Ritter | 2016-09-13 |
| 8376325 | Diffuser membranes with modified electrical properties | Thomas E. Frankel, Todd D. Ritter | 2013-02-19 |
| 8241549 | Fluorinated elastomeric gas diffuser membrane | Thomas E. Frankel, Todd D. Ritter | 2012-08-14 |
| 7674514 | Multiple layered membrane with thin fluorine containing polymer layer | Thomas E. Frankel, Todd D. Ritter, Hong Suk Kim | 2010-03-09 |