Robert E. Williams
16Patents
5h-index
17Co-inventors
63Inventor score
Filing activity: May 23, 1974 → Feb 13, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3999559A | Manufacture of filter-tipped cigarettes | Human Necessities | 15 | Expired |
| US4174780A | Feeding cigarettes and similar rod-like articles | Performing Operations; Transporting | 14 | Expired |
| US3978969A | Method and apparatus for the manufacture of filter-tipped cigarettes | Performing Operations; Transporting | 13 | Expired |
| US4569359A | Method and apparatus for ventilated cigarette manufacture | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4746006A | Filter cigarette manufacture | Human Necessities | 7 | Expired |
| US4325250A | Cigarette testing device | Physics | 5 | Expired |
| US4121596A | Cigarette making machines | Human Necessities | 5 | Expired |
| US5560515A | Cigarette weight control | Human Necessities | 4 | Expired |
| US4290518A | Filter attachment machines | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4193410A | Apparatus for making ventilated cigarettes | Human Necessities | 3 | Expired |
| US5471866A | Cigarette testing device | Human Necessities | 2 | Expired |
| US5564441A | Pneumatic web feeding | Performing Operations; Transporting | 1 | Expired |
| US4331165A | Ventilated cigarettes | Human Necessities | 1 | Expired |
| US5097941A | Conveying rod-like articles | Performing Operations; Transporting | 0 | Expired |
| US4635653A | Spark perforation of web material | Physics | 0 | Expired |
| USRE30865E | Manufacture of filter-tipped cigarettes | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.