Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11319198 | Compact hoist accessories and combination systems | Donald A. Hoffend, III | 2022-05-03 |
| 11111117 | Compact hoist system | Donald A. Hoffend, III | 2021-09-07 |
| 10399832 | Compact hoist accessories and combination systems | Donald A. Hoffend, III | 2019-09-03 |
| 10183850 | Compact hoist system | Donald A. Hoffend, III | 2019-01-22 |
| 9962621 | Compact hoist system | Donald A. Hoffend, III | 2018-05-08 |
| 9700810 | Compact hoist system | Donald A. Hoffend, III | 2017-07-11 |
| 8789814 | Modular lift assembly | — | 2014-07-29 |
| 8286946 | Modular lift assembly | — | 2012-10-16 |
| 8047507 | Modular lift assembly | — | 2011-11-01 |
| 7854423 | Modular lift assembly | — | 2010-12-21 |
| 7810792 | Modular lift assembly having telescoping member | — | 2010-10-12 |
| 7484715 | Modular lift assembly having telescoping member | — | 2009-02-03 |
| 7293762 | Modular lift assembly | — | 2007-11-13 |
| 7258325 | Modular lift assembly | — | 2007-08-21 |
| 6997442 | Safety sensor for a lift assembly | — | 2006-02-14 |
| 6988716 | Modular lift assembly | — | 2006-01-24 |
| 6889958 | Brake for hoist assembly | — | 2005-05-10 |
| 6691986 | Modular lift assembly | — | 2004-02-17 |
| 6634622 | Modular lift assembly | — | 2003-10-21 |
| 5161104 | Amusement ride having pivotable ingress-egress bridges | Richard J. Fox, Maurice G. Leasure, Gregory S. Kadorian, Douglas R. LeBlanc, David L. Harbaugh +1 more | 1992-11-03 |
| 5021954 | System and method of providing passenger ingress and egress in an amusement ride | Richard J. Fox, Maurice G. Leasure, Gregory S. Kadorian, Douglas R. LeBlanc, David L. Harbaugh +1 more | 1991-06-04 |
| 4303237 | Arrangement for supporting theatrical equipment | Nicholas G. Cristy | 1981-12-01 |