David W. Heyn
12Patents
8h-index
40Co-inventors
64Inventor score
Filing activity: Apr 29, 1998 → Feb 22, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6075178A | Absorbent article with wetness indicator | Human Necessities | 185 | Expired |
| US6416697B1 | Method for obtaining a dual strata distribution of superabsorbent in a fibrous matrix | Human Necessities | 161 | Expired |
| US6140551A | Absorbent article with visually and tactilely distinctive outer cover | Human Necessities | 148 | Expired |
| US6982052B2 | Process and apparatus for air forming an article having a plurality of superimposed fibrous layers | Human Necessities | 83 | Expired |
| US7204682B2 | Apparatus for making a reinforced fibrous absorbent member | Human Necessities | 14 | Expired |
| US6702917B1 | Cross-machine-direction nested absorbent pads with minimal waste geometries | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7094373B2 | Process and apparatus for air forming an article having a plurality of reinforced superimposed fibrous layers | Human Necessities | 9 | Expired |
| US6202259A | Method and apparatus for depositing particulate material in a fibrous web | Textiles; Paper | 8 | Expired |
| US7745687B2 | Absorbent article with reinforced absorbent structure | Human Necessities | 6 | Active |
| US6989118B2 | Process for making a reinforced fibrous absorbent member | Human Necessities | 3 | Expired |
| US6656311B2 | Apparatus and process for converting asymmetrically nested absorbent webs | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7568900B2 | Apparatus for making a reinforced fibrous absorbent member | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.