Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8893765 | System for unevenly weighted sectional doors | Jeffrey W. Stone | 2014-11-25 |
| 7861763 | Method of making an optimized overhead sectional door and associated door panel | Thomas E. Youtsey | 2011-01-04 |
| 7730928 | Overhead sectional door, hinge and stile assembly | Jeffrey W. Stone, John A. Colston | 2010-06-08 |
| 6772814 | Combined weather seal, light block and wear insert for overhead door panel | Richard Lewis, Jeffrey W. Stone, Thomas E. Youtsey | 2004-08-10 |
| 5964268 | Counterbalancing mechanism for an overhead door | Kenneth E. Carper | 1999-10-12 |
| 5709259 | Multiple section modular door and joint structure | Richard Lewis, Bobby G. Bailey, Frank R. Wilgus, Frank A. Wilgus | 1998-01-20 |
| 5636678 | Counterbalancing mechanism for an overhead door | Kenneth E. Carper | 1997-06-10 |
| 5632063 | Counterbalancing mechanism for an overhead door | Kenneth E. Carper, Tony Y. Lin, George S. Carper, Thomas E. Agin | 1997-05-27 |
| 5577544 | Extension spring system for an overhead door | Kenneth E. Carper | 1996-11-26 |
| 5555923 | Sectional door having multiple piece panel sections | Richard Lewis, William Sachs | 1996-09-17 |
| 5205627 | Modular anti-tip lateral mobile storage system | Thomas R Davison, Philip M. Croel | 1993-04-27 |
| 5129441 | Sectional doors and compressible flexible hinge assemblies | Thomas E. Youtsey | 1992-07-14 |
| D320902 | Track for a mobile shelving system | — | 1991-10-22 |
| 5054536 | Sectional doors and flexible hinge assemblies | Thomas G. Mushaben, Thomas E. Youtsey | 1991-10-08 |
| 5024164 | Mobile storage system with improved driving assemblies | — | 1991-06-18 |
| 4995441 | Sectional doors and flexible hinge assemblies | Thomas G. Mushaben, Thomas E. Youtsey | 1991-02-26 |
| 4944231 | Mobile storage system with driving assemblies | — | 1990-07-31 |
| 4911507 | Mobile storage system with anti-tip construction | — | 1990-03-27 |
| 4771901 | Mobile shelving carriage | Kenneth D. Griswold | 1988-09-20 |