| 8499495 |
Door operator |
Blue Houser, Robert L. Tadlock, Jr., Tom Harris, John Presley, Jeff Schoener +1 more |
2013-08-06 |
| 8109038 |
Door operator |
Blue Houser, Robert L. Tadlock, Jr., Tom Harris, John Presley, Jeff Schoener +1 more |
2012-02-07 |
| 7832778 |
Delayed egress exit device |
Andrew Whitaker, John Steven Gray, Larry R. Hunt, Michael Ensley |
2010-11-16 |
| 7484333 |
Method of using a door operator |
Blue Houser, Robert L. Tadlock, Jr., Tom Harris, John Presely, Jeff Schoener +1 more |
2009-02-03 |
| 7469942 |
Delayed egress exit device |
Andrew Whitaker, J. Steven Gray, Michael Ensley, Larry R. Hunt |
2008-12-30 |
| 7316096 |
Door operator |
Blue Houser, Robert L. Tadlock, Jr., Tom Harris, John Presely, Jeff Schoener +1 more |
2008-01-08 |
| 5077994 |
Door lock having removable outside lever handle for the purpose of changing the key cylinder |
Jeffrey G. Trull |
1992-01-07 |
| 4623174 |
Latchbolt with adjustable backset |
Jeffrey G. Trull |
1986-11-18 |
| 4598939 |
Exit device |
William A. Krupicka, Lawrence D. Butts |
1986-07-08 |