Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10907737 | Locomotive sanding system | David P. Keffeler | 2021-02-02 |
| 10549419 | Wire cutback template | David P. Keffeler | 2020-02-04 |
| 10435038 | Locomotive sanding system | David P. Keffeler | 2019-10-08 |
| 7793785 | Medication dispenser | David P. Keffeler | 2010-09-14 |
| D615208 | Medication cart | David P. Keffeler | 2010-05-04 |
| 7395929 | Cover assembly for a medication dispenser | David P. Keffeler | 2008-07-08 |
| 7334699 | Filler assembly for medication dispenser | David P. Keffeler | 2008-02-26 |
| 7267228 | Cover assembly for a medication dispenser | David P. Keffeler | 2007-09-11 |
| 7097037 | Cover assembly for a medication dispenser | David P. Keffeler | 2006-08-29 |