Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9580335 | Water treatment apparatus incorporating walnut shell filter media and a draft tube system | Chad L. Felch, Michael Howdeshell, Eric A. Lorge, Bryan J. Kumfer, Matthew Patterson | 2017-02-28 |
| 8747667 | Water filter apparatus incorporating walnut shell filter media and a draft tube system | Chad L. Felch, Michael Howdeshell, Eric A. Lorge, Bryan J. Kumfer, Matthew Patterson | 2014-06-10 |