Werner Co.
215Patents
175Active
215Granted
55Portfolio score
Filing activity: Apr 19, 1974 → Dec 21, 2023 · 36 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5573081A | Ladder top with bail recess | Fixed Constructions | 52 | Expired |
| US7931123B2 | Stepladder folding twin-step | Emerging Cross-Sectional Technologies | 47 | Active |
| USD422717S | Ladder top | General | 37 | Expired |
| USD789565S1 | Roof anchor | General | 34 | Active |
| US5358070A | Ladder top | Fixed Constructions | 33 | Expired |
| US8210313B2 | Pipe tradesman's ladder top and method | Fixed Constructions | 32 | Active |
| USD530025S1 | Ladder top | General | 30 | Expired |
| USD531322S1 | Ladder top | General | 30 | Expired |
| USD576291S1 | Step stool | General | 30 | Expired |
| US8453796B2 | Trade based component case and ladder bucket | Emerging Cross-Sectional Technologies | 29 | Active |
| US5601130A | Shutter blade, assembly and method | Fixed Constructions | 28 | Expired |
| US8272478B2 | Ladder top with tool lasso slot | Fixed Constructions | 27 | Active |
| US5370203A | Ladder shoe spur plate | Fixed Constructions | 27 | Expired |
| US8042653B2 | Adjustable work platform | Fixed Constructions | 27 | Expired |
| US7886872B2 | Electrician's ladder and method | Emerging Cross-Sectional Technologies | 26 | Active |
| US5758745A | Extension ladder, combination end cap/guide bracket, and method for climbing | Fixed Constructions | 21 | Expired |
| US5533591A | Ladder rail cap | Fixed Constructions | 20 | Expired |
| US10612305B2 | Ladder, Top and Method | Fixed Constructions | 20 | Active |
| US10590703B2 | Ladder, top and method | Fixed Constructions | 20 | Active |
| USD788951S1 | Roof anchor | General | 19 | Active |
| US3942554A | Extendable crane with folding conduit | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5615968A | Hand rail coupler system | Emerging Cross-Sectional Technologies | 18 | Expired |
| US8997931B2 | Stepladder with latch stud and method | Fixed Constructions | 18 | Active |
| US7100739B2 | Step stool, hinge and method | Fixed Constructions | 17 | Expired |
| USD372105S | Ladder pail shelf | General | 16 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.