Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8261960 | Single retainer mounted riser | Velibor Kilibarda, Michael R. Dugas, William T. Maybee | 2012-09-11 |
| 8070040 | Single retainer mounted riser | Velibor Kilibarda, Michael R. Dugas, William T. Maybee | 2011-12-06 |
| 7784665 | Single retainer mounted riser | Velibor Kilibarda, Michael R. Dugas, William Maybee | 2010-08-31 |
| 7271367 | Single retainer mounted riser | Velibor Kilibarda, Michael R. Dugas, William Maybee | 2007-09-18 |