Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5908122 | Sway control method and system for rotary cranes | Rush D. Robinett, III, Gordon G. Parker, John T. Feddema, Clark R. Dohrmann | 1999-06-01 |
| 5785191 | Operator control systems and methods for swing-free gantry-style cranes | John T. Feddema, Rush D. Robinett, III | 1998-07-28 |
| 5764066 | Object locating system | James L. Novak | 1998-06-09 |
| 4997095 | Methods of and system for swing damping movement of suspended objects | James F. Jones, David Strip | 1991-03-05 |