Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11384536 | Ceiling grid hanger holes | Peder J. Gulbrandsen, Nathan Mathiot | 2022-07-12 |
| 10988953 | Building perimeter system | Abraham M. Underkofler, Peder J. Gulbrandsen, Mark R. Paulsen | 2021-04-27 |
| 9938686 | Locakable manhole covers and methods for locking a manhole cover | Anthony F. Mitola, Lawrence E. Jordan, Joseph Vainauskas | 2018-04-10 |
| 9909312 | Free span ceiling grid system | James J. Lehane, Lee M. Tedesco, Peder J. Gulbrandsen, John M. Willi, Donald J. Leahy +2 more | 2018-03-06 |
| 9765498 | Manhole cover locks, lockable manhole covers, and methods for locking a manhole cover | Anthony F. Mitola, Lawrence E. Jordan, Joseph Vainauskas | 2017-09-19 |
| 9663948 | Free span ceiling grid system | James J. Lehane, Lee M. Tedesco, Peder J. Gulbrandsen, John M. Willi, Donald J. Leahy +2 more | 2017-05-30 |
| 9255403 | Free span ceiling grid system | James J. Lehane, Lee M. Tedesco, Peder J. Gulbrandsen, John M. Willi, Donald J. Leahy +2 more | 2016-02-09 |
| D682069 | Bracket useful for mounting ceiling grid tees to walls or ceilings | James J. Lehane, Faris Alnakkar, Gregory M. Ahren | 2013-05-14 |
| D373001 | Decorative seasonal outdoor light | — | 1996-08-20 |
| 5367887 | Apparatus for frosting drinking glasses | Jerry Byrd | 1994-11-29 |