Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8439997 | Vacuum sweeper apparatus including a filter bag and a method of installation | Mark N. Rupp, Dale A. Krausnick, Hui Hiu Kwan, Paul Goetz, Jeffery Scott Kunkler +2 more | 2013-05-14 |