Daniel A. Japuntich
22Patents
18h-index
27Co-inventors
81Inventor score
Filing activity: Mar 2, 1987 → Mar 23, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4827924A | High efficiency respirator | Human Necessities | 161 | Expired |
| US6460539B1 | Respirator that includes an integral filter element, an exhalation valve, and impactor element | Human Necessities | 148 | Expired |
| US4886058A | Filter element | Emerging Cross-Sectional Technologies | 135 | Expired |
| US6584976B2 | Face mask that has a filtered exhalation valve | Human Necessities | 120 | Expired |
| US5325892A | Unidirectional fluid valve | Emerging Cross-Sectional Technologies | 106 | Expired |
| US6511204B2 | Light tube | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| USRE35062E | Filter element | General | 56 | Expired |
| US5509436A | Unidirectional fluid valve | Emerging Cross-Sectional Technologies | 53 | Expired |
| US6843248B2 | Filtering face mask that has a new exhalation valve | Emerging Cross-Sectional Technologies | 46 | Expired |
| US7117868B1 | Fibrous filtration face mask having a new unidirectional fluid valve | Human Necessities | 44 | Expired |
| US6854463B2 | Filtering face mask that has a new exhalation valve | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4883547A | Method of forming a high efficiency respirator | Emerging Cross-Sectional Technologies | 33 | Expired |
| USD347298S | Valve cover | General | 26 | Expired |
| US7765698B2 | Method of making electret articles based on zeta potential | Emerging Cross-Sectional Technologies | 24 | Active |
| USD347299S | Valve cover | General | 23 | Expired |
| US7311104B2 | Method of making a filtering face mask that has an exhalation valve | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7493900B1 | Fibrous filtration face mask having a new unidirectional fluid valve | Emerging Cross-Sectional Technologies | 19 | Expired |
| US7428903B1 | Fibrous filtration face mask having a new unidirectional fluid valve | Emerging Cross-Sectional Technologies | 19 | Expired |
| US8517329B2 | Easel stand mountable display board | Performing Operations; Transporting | 18 | Active |
| US6805124B2 | Face mask that has a filtered exhalation valve | Human Necessities | 18 | Expired |
| US8790449B2 | Electret webs with charge-enhancing additives | Emerging Cross-Sectional Technologies | 16 | Active |
| US8529671B2 | Electret webs with charge-enhancing additives | Emerging Cross-Sectional Technologies | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.