Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12319596 | Water treatment dispensing apparatus | Thomas L. Fenton, Michael W. McKeand, Christopher Werthman | 2025-06-03 |
| 11365135 | Water treatment dispensing apparatus | Thomas L. Fenton, Michael W. McKeand, Christopher Werthman | 2022-06-21 |
| D858690 | Water treatment cartridge | Thomas L. Fenton, Michael W. McKeand, Christopher Werthman | 2019-09-03 |
| 6669292 | Ergonomic chair | Marcus C. Koepke, Jay R. Machael, Tim Coffield, Keith L. Davis, Amin K. Habboub +6 more | 2003-12-30 |
| 6609755 | Ergonomic chair | Marcus C. Koepke, Jay R. Machael | 2003-08-26 |
| 6568760 | Chair of modular construction | Keith L. Davis, Marcus C. Koepke, Jay R. Machael, Matthew J. Phillips, Douglas A. Schroeder +4 more | 2003-05-27 |