Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9724708 | Garden watering device | John A. Helmsderfer, Nathan Maggard, Nicholas Jeffers, Yani Deros, Craig Ovans | 2017-08-08 |
| 9597699 | Water flow metering device | John A. Helmsderfer | 2017-03-21 |