Robert J. Libman
153Patents
21h-index
10Co-inventors
87Inventor score
Filing activity: Aug 21, 1980 → Jul 7, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD618410S1 | Cover for a cleaning implement | General | 57 | Expired |
| USD287173S | Liquid applicator | General | 47 | Expired |
| USD469230S1 | Squeegee | General | 38 | Expired |
| USD387526S | Combined wringer hand grip, tubular shell, and collar for a mop | General | 34 | Expired |
| USD479024S1 | Self-wringing mop | General | 34 | Expired |
| US7318247B2 | Bucket combination | Human Necessities | 34 | Expired |
| US7178681B2 | Display rack construction | Human Necessities | 30 | Expired |
| USD474869S1 | Mop | General | 29 | Expired |
| USD499223S1 | Multipurpose bucket | General | 29 | Expired |
| US6115869A | Wringer mop | Human Necessities | 26 | Expired |
| USD482920S1 | Brush caddy | General | 25 | Expired |
| USD581676S1 | Portion of a brush | General | 25 | Expired |
| USD630401S1 | Dust pan | General | 25 | Expired |
| USD475828S1 | Dust pan | General | 24 | Expired |
| USD607165S1 | Mop | General | 23 | Expired |
| USD612706S1 | Handle cap | General | 22 | Expired |
| USD588767S1 | Portion of a squeegee | General | 22 | Expired |
| USD575526S1 | Portion of a brush | General | 22 | Expired |
| USD575528S1 | Portion of a brush | General | 22 | Expired |
| USD346543S | Handle grip | General | 22 | Expired |
| USD500184S1 | Squeegee | General | 21 | Expired |
| USD579211S1 | Portion of a brush | General | 21 | Expired |
| USD575523S1 | Portion of a brush | General | 21 | Expired |
| USD483186S1 | Kitchen brush | General | 20 | Expired |
| USD585616S1 | Portion of a cleaning implement | General | 20 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.