Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10189723 | Multi-media stratified filtration | Chad L. Felch, Shane Wiercinski, Matthew Patterson | 2019-01-29 |
| 9782694 | Composite media for water treatment processes and methods of using same | Chad L. Felch, Matthew Patterson, Shane Wiercinski | 2017-10-10 |
| 9580335 | Water treatment apparatus incorporating walnut shell filter media and a draft tube system | Chad L. Felch, Michael Howdeshell, Stuart J. Munson, 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, Bryan J. Kumfer, Stuart J. Munson, Matthew Patterson | 2014-06-10 |