Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11807493 | Retrofitted hoist machine | Christopher H. Koenig, Barry G. Blackaby, Daniel B. Davis, III, Gregory M. O'Seep, John Eschenbrenner +1 more | 2023-11-07 |
| 11377323 | Retrofitting an elevator machine with primary and secondary braking | Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard +5 more | 2022-07-05 |
| 11299374 | Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine | Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard +5 more | 2022-04-12 |
| 10737908 | Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine | Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard +5 more | 2020-08-11 |
| 10618775 | Retrofitting an elevator machine with primary and secondary braking | Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard +5 more | 2020-04-14 |
| 8752262 | Supplemental elevator brake and retrofitting installation procedure | Daniel B. Davis, III, Valery Sheynkman, Kenneth V. Allen, Michael P. Keenan, Gregory M. Oseep +4 more | 2014-06-17 |
| 5894911 | Car door locking system | Ali Bozorgzadeh, Troy R. Chicoine, Frank E. Dyer, John Joseph Faup, Frank P. Morrisino +1 more | 1999-04-20 |
| 5791011 | Rope cleaning device | Paul J. Willett | 1998-08-11 |