Michael R. Berrigan
53Patents
21h-index
88Co-inventors
91Inventor score
Filing activity: May 26, 1995 → Jun 30, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6916752B2 | Bondable, oriented, nonwoven fibrous webs and methods for making them | Emerging Cross-Sectional Technologies | 80 | Expired |
| US6014971A | Protective system for face and respiratory protection | Human Necessities | 79 | Expired |
| US8512569B2 | Fluid filtration articles and methods of making and using the same | Emerging Cross-Sectional Technologies | 70 | Active |
| US7757811B2 | Multilayer articles having acoustical absorbance properties and methods of making and using the same | Emerging Cross-Sectional Technologies | 64 | Active |
| US7947142B2 | Pleated filter with monolayer monocomponent meltspun media | Emerging Cross-Sectional Technologies | 61 | Active |
| US6492183B1 | Extraction articles and methods | Emerging Cross-Sectional Technologies | 57 | Expired |
| US6607624B2 | Fiber-forming process | Emerging Cross-Sectional Technologies | 54 | Expired |
| US8162153B2 | High loft spunbonded web | Emerging Cross-Sectional Technologies | 50 | Active |
| US7744807B2 | Nonwoven elastic fibrous webs and methods for making them | Emerging Cross-Sectional Technologies | 45 | Active |
| US6250299A | Protective system for face and respiratory protection | Human Necessities | 37 | Expired |
| US6092302A | Absorbent fibrous granules | Chemistry; Metallurgy | 34 | Expired |
| US5641555A | Cup-shaped filtration mask having an undulated surface | Emerging Cross-Sectional Technologies | 30 | Expired |
| US9487893B2 | Dimensionally stable nonwoven fibrous webs and methods of making and using the same | Emerging Cross-Sectional Technologies | 28 | Active |
| US6279572A | Protective system for face and respiratory protection | Human Necessities | 27 | Expired |
| US8240484B2 | High loft spunbonded web | Emerging Cross-Sectional Technologies | 25 | Active |
| US7695660B2 | Bondable, oriented, nonwoven fibrous webs and methods for making them | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5763083A | Oil absorbent fibrous granules | Emerging Cross-Sectional Technologies | 25 | Expired |
| US9770058B2 | Flat-fold respirator with monocomponent filtration/stiffening monolayer | Textiles; Paper | 24 | Active |
| US9194065B2 | Dimensionally stable nonwoven fibrous webs and methods of making and using the same | Emerging Cross-Sectional Technologies | 24 | Active |
| US7476632B2 | Fibrous nonwoven web | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5643507A | Filter media having an undulated surface | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5658641A | Filter media haing an undulated surface | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5658640A | Electret filter media having an undulated surface | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6824372B2 | Fiber-forming apparatus | Emerging Cross-Sectional Technologies | 17 | Expired |
| US8721943B2 | Process of making dimensionally stable nonwoven fibrous webs | Emerging Cross-Sectional Technologies | 17 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.