Frederick J. Bartnicki
13Patents
9h-index
14Co-inventors
65Inventor score
Filing activity: Jan 26, 1990 → May 13, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5573081A | Ladder top with bail recess | Fixed Constructions | 52 | Expired |
| USD422717S | Ladder top | General | 37 | Expired |
| USD340773S | Ladder top | General | 37 | Expired |
| US5259480A | Ladder top | Fixed Constructions | 35 | Expired |
| US5358070A | Ladder top | Fixed Constructions | 33 | Expired |
| US5067589A | Extendable support | Fixed Constructions | 19 | Expired |
| US5366051A | Hollow plastic ladder | Fixed Constructions | 15 | Expired |
| USD413990S | Front face of a ladder top | General | 14 | 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 |
| USD340291S | Ladder pail shelf | General | 8 | Expired |
| US5131495A | Hollow plastic ladder | Fixed Constructions | 8 | Expired |
| US5636706A | Ladder, member for connecting a rail to a horizontal element of a ladder, and method | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6142255A | Ladder, member for connecting a rail to a horizontal element of a ladder, and method | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.