Warren E. Claflin
12Patents
8h-index
30Co-inventors
68Inventor score
Filing activity: Nov 4, 1975 → Apr 12, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4391285A | Smoking article | Human Necessities | 163 | Expired |
| US4347855A | Method of making smoking articles | Human Necessities | 157 | Expired |
| US5168884A | Smoking articles using novel paper wrapper | Human Necessities | 40 | Expired |
| US5178166A | Filter cigarette | Human Necessities | 29 | Expired |
| US4019366A | Variable parameter smoking machine | Human Necessities | 12 | Expired |
| US4410785A | Method and apparatus for perforation of sheet material by laser | Performing Operations; Transporting | 11 | Expired |
| US4236062A | Apparatus for electrical perforation of webs | Performing Operations; Transporting | 10 | Expired |
| US4224498A | Apparatus for perforating articles by laser | Performing Operations; Transporting | 9 | Expired |
| US4439663A | Method and system for laser perforation of sheet material | Performing Operations; Transporting | 8 | Expired |
| US4207458A | Method of electrically perforating a planar web | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4224497A | Method for making filter cigarettes using light energy to make perforations in the filter tipping wrap | Performing Operations; Transporting | 5 | Expired |
| US4349719A | Apparatus for laser perforation of transported articles | Performing Operations; Transporting | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.