Robert A. Simpson
17Patents
8h-index
21Co-inventors
72Inventor score
Filing activity: May 26, 1981 → Sep 2, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4417203A | System for contactless electrical property testing of multi-layer ceramics | Performing Operations; Transporting | 51 | Expired |
| USD508853S1 | Child-resistant closure | General | 46 | Expired |
| USD398851S | Dispensing closure with pressure actuated valve | General | 32 | Expired |
| US6089418A | Dispensing closure with pressure actuated valve | Performing Operations; Transporting | 32 | Expired |
| USD508203S1 | Child-resistant closure | General | 24 | Expired |
| USD472144S1 | Closure for container | General | 20 | Expired |
| US6910607B2 | Cover for dispensing closure with pressure actuated valve | Performing Operations; Transporting | 19 | Expired |
| USD595357S1 | Clipboard | General | 11 | Expired |
| US4546260A | Alignment technique | Electricity | 8 | Expired |
| US5428552A | Data compaction techniques for generation of a complex image | Physics | 6 | Expired |
| US6578744B2 | Watertight tube closure | Performing Operations; Transporting | 4 | Expired |
| US6056161A | Push-pull dispenser | Performing Operations; Transporting | 3 | Expired |
| US4581537A | Method for generating inspection patterns | Electricity | 3 | Expired |
| US11769261B2 | Imaging system | Physics | 1 | Active |
| US4595836A | Alignment correction technique | Physics | 1 | Expired |
| US11922645B2 | Imaging system | Physics | 0 | Active |
| US12154286B2 | Imaging system | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.