Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12168899 | Window balance assembly and mounting bracket therefor | Andrew Baglio, Eric Mertz, Jay Sofianek | 2024-12-17 |
| 11613920 | Window balance assembly | Mark R. Baker, Wilbur James Kellum, III | 2023-03-28 |
| 10167658 | Side-load hung window assembly with sash guides | — | 2019-01-01 |
| 10053899 | Side-load, constant force window and window balance assembly | Jay Sofianek | 2018-08-21 |
| 9988834 | Carrier device for window balance assembly | Jay Sofianek | 2018-06-05 |
| 9458655 | Constant force moving coil window balance with drop-in carrier | — | 2016-10-04 |
| 9309709 | Window counterbalance system | Eric Rodems, Jay Sofianek, Robert M. Lucci | 2016-04-12 |
| 9121209 | Window balance assembly | Mark R. Baker, Wilbur James Kellum, III | 2015-09-01 |
| 8850745 | Window counterbalance system and mounting bracket therefor | Jay Sofianek | 2014-10-07 |
| 8819896 | Locking carrier and mounting arrangement for tilt sash counterbalance systems | Wilbur James Kellum, III, Eric Mertz, Mark R. Baker, Jeffrey D. Tuller, Fletcher Smith +1 more | 2014-09-02 |
| 8561260 | Window balance assembly | Mark R. Baker, Wilbur James Kellum, III | 2013-10-22 |
| 7945994 | Two piece carrier and balance assembly | Tobias Peter Dallas, Douglas Zinter, Wilbur James Kellum, III | 2011-05-24 |
| 7735192 | Extended travel window balance | — | 2010-06-15 |
| 6041476 | Inverted block and tackle window balance | — | 2000-03-28 |
| 5934031 | Jamb liner wind braces for tilt window | — | 1999-08-10 |
| 5546702 | Adjustable brace for window sash | Patrick E. Milligan | 1996-08-20 |
| 5530991 | Block and tackle window balance | James A. Martini, Norman R. Westfall | 1996-07-02 |
| 5199219 | Window jamb liner | James A. Martini, Norman R. Westfall | 1993-04-06 |