David W. Appel
6Patents
6h-index
4Co-inventors
52Inventor score
Filing activity: Apr 21, 1975 → Sep 9, 1986
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4340563A | Method for forming nonwoven webs | Performing Operations; Transporting | 1,388 | Expired |
| US4405297A | Apparatus for forming nonwoven webs | Textiles; Paper | 213 | Expired |
| US4375448A | Method of forming a web of air-laid dry fibers | Textiles; Paper | 123 | Expired |
| US4720252A | Slotted melt-blown die head | Textiles; Paper | 34 | Expired |
| US4043739A | Distributor for thermoplastic extrusion die | Performing Operations; Transporting | 32 | Expired |
| US4252184A | Control of oil distribution in heated embossing rolls | Emerging Cross-Sectional Technologies | 28 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.