Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10760337 | Ladder leveler and method | Joseph C. Dangrow, David A. Winslow | 2020-09-01 |
| 10697239 | Electrician's ladder and method | Kyle G. Astor, Craig Roy Werner, Kevin J. Moran | 2020-06-30 |
| 10208538 | Pipe tradesman's ladder and method | Kyle G. Astor, Brett Latimer | 2019-02-19 |
| 8944213 | Electrician's ladder and method | Kyle G. Astor, Craig Roy Werner, Kevin J. Moran | 2015-02-03 |
| 8616336 | Method for a ladder with a ladder leveler | Joseph C. Dangrow, David A. Winslow | 2013-12-31 |
| 8261882 | Ladder leveler and method | Joseph C. Dangrow, David A. Winslow | 2012-09-11 |
| 8256573 | Ladder leveler and method | Joseph C. Dangrow, David A. Winslow | 2012-09-04 |
| 8042653 | Adjustable work platform | Donna L. Cousins | 2011-10-25 |
| 8016078 | Electrician's ladder and method | Kyle G. Astor, Craig Roy Werner, Kevin J. Moran | 2011-09-13 |
| 7886872 | Electrician's ladder and method | Kyle G. Astor, Craig Roy Werner, Kevin J. Moran | 2011-02-15 |
| D584422 | Ladder leveler stile | Joseph C. Dangrow, Sergio DeOliveira | 2009-01-06 |