Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9878889 | Mast lift using multi-stage mast module | Jason James Watson | 2018-01-30 |
| 9505596 | Mast lift with screw drive and gas strut | Jason James Watson, Mark Spaile | 2016-11-29 |
| 9187301 | Self-propel accessory | Jason James Watson | 2015-11-17 |
| 8789654 | Mast lift with screw drive and gas strut | Jason James Watson | 2014-07-29 |
| D704914 | Mast lift base | Hugh Lithgow Stark, Alexander (Sandy) McKechran Hardie McNeil, Frank Fornasari | 2014-05-13 |
| 8505688 | Mast lift and mast lift system | Hugh Lithgow Stark, Alexander (Sandy) McKechran Hardie McNeil, Frank Fornasari | 2013-08-13 |
| 8292039 | Mast lift and mast lift system | Hugh Lithgow Stark, Alexander McKechran Hardie McNeil, Frank Fornasari | 2012-10-23 |
| 7896366 | Lever-actuated retractable wheel and movable platform using same | Hugh Lithgow Stark | 2011-03-01 |
| 7766750 | Slip clutch | Hugh Lithgow Stark | 2010-08-03 |
| 7762532 | Load equalizing rope termination and method | Alexander McKechran Hardie McNeil | 2010-07-27 |
| 7614459 | Slip clutch with two-action drive system activation | Alexander McKechran Hardie McNeil | 2009-11-10 |
| D570071 | Free standing mast lift | Alexander McKechran Hardie McNeil | 2008-05-27 |