David E. Plotner
9Patents
5h-index
15Co-inventors
60Inventor score
Filing activity: Jul 8, 1994 → Feb 19, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD372105S | Ladder pail shelf | General | 16 | Expired |
| US6994184B2 | Stowable ladder configured for installation in an opening | Fixed Constructions | 10 | Expired |
| US6991063B2 | Stowable ladder configured for installation in an opening | Fixed Constructions | 10 | Expired |
| US5791439A | Ladder, member for connecting a rail to a horizontal element of a ladder, and method, and apparatus and method for holding a washer | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5636706A | Ladder, member for connecting a rail to a horizontal element of a ladder, and method | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7165649B2 | Positioning system for folding ladder and method of installation of folding ladder using positioning system | Fixed Constructions | 5 | Expired |
| US7234203B2 | Locking hinge for folding ladder | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6142255A | Ladder, member for connecting a rail to a horizontal element of a ladder, and method | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US11885181B2 | Box rail backup and method | Fixed Constructions | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.