| 2024/0426,174 | LADDER AND A LADDER RUNG | Sep 03, 24 | Dec 26, 24 | Not available |
| 2020/0003,008 | LADDER SYSTEM FOR TRENCH SHORING | Mar 06, 18 | Jan 02, 20 | Klaus Stewering GmbH & Co. KG |
| 2016/0040,479 | Fiberglass Reinforced Plastic Lightweight Heavy-Duty Ladder and Method of Making Same | Oct 22, 15 | Feb 11, 16 | Not available |
| 2015/0164,715 | Ultra Lightweight Segmented Ladder/Bridge System Accessories | Feb 17, 15 | Jun 18, 15 | ALLRED & ASSOCIATES INC. |
| 2015/0075,907 | LADDERS INCLUDING ROPE AND PULLEY SYSTEM AND FALL PROTECTION DEVICE | Sep 18, 14 | Mar 19, 15 | WING ENTERPRISES, INC. |
| 2015/0068,842 | ADJUSTABLE LADDERS, LADDER COMPONENTS AND RELATED METHODS | Sep 05, 14 | Mar 12, 15 | WING ENTERPRISES, INC. |
| 2015/0020,927 | Retrogression Heat Treatment | Oct 09, 14 | Jan 22, 15 | WERNER CO. |
| 2014/0102,830 | Fiberglass Reinforced Plastic Lightweight Heavy-Duty Ladder and Method of Making Same | Oct 15, 13 | Apr 17, 14 | ABSS MANUFACTURING CO., INC. |
| 2013/0161,127 | ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM ACCESSORIES | Feb 19, 13 | Jun 27, 13 | ALLRED & ASSOCIATES INC. |
| 2012/0228,061 | LADDERS, LADDER COMPONENTS AND RELATED METHODS | May 25, 12 | Sep 13, 12 | WING ENTERPRISES, INC. |
| 2012/0160,609 | COMBINATION LADDER, LADDER COMPONENTS AND METHODS OF MANUFACTURING SAME | Dec 05, 11 | Jun 28, 12 | WING ENTERPRISES, INC. |
| 2012/0037,454 | ADJUSTABLE BASE EXTENDER FOR A LADDER | Apr 23, 10 | Feb 16, 12 | Not available |
| 2011/0209,947 | ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM | May 10, 11 | Sep 01, 11 | ALLRED & ASSOCIATES INC. |
| 2011/0073,410 | Swimming Pool Ladder With a Barrier | Aug 10, 10 | Mar 31, 11 | INTEX MARKETING LTD. |
| 2011/0073,729 | LADDER STORAGE DEVICE | Sep 30, 09 | Mar 31, 11 | Not available |
| 2011/0036,666 | Retractable Ladder | Aug 11, 09 | Feb 17, 11 | Not available |
| 2010/0170,750 | LADDER AND A LADDER TREAD | Jun 25, 08 | Jul 08, 10 | New-Tec Integration (Xiamen) Co., Ltd. |
| 2010/0147,622 | CONVERTIBLE DECK DEPLOYMENT SYSTEM, AND METHOD FOR TRANSFERRING PERSONNEL BETWEEN SPACED ELECATIONS | Aug 21, 07 | Jun 17, 10 | Patriot3, Inc. |
| 2010/0133,041 | LADDER | Nov 23, 09 | Jun 03, 10 | TIANJIN KELIN MOLD TECHNIC CO., LTD. |
| 2010/0044,154 | A-Frame Ladder with a Tambour Gate/Barrier | Aug 19, 08 | Feb 25, 10 | Confer Plastics, Inc. |