Philip D. Eitzman
18Patents
9h-index
18Co-inventors
69Inventor score
Filing activity: Mar 10, 1994 → Jul 30, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6375886B1 | Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid | Textiles; Paper | 75 | Expired |
| US6406657B1 | Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid | Textiles; Paper | 69 | Expired |
| US6454986B1 | Method of making a fibrous electret web using a nonaqueous polar liquid | Textiles; Paper | 54 | Expired |
| US5468847A | Method of isolating and purifying a biomacromolecule | Performing Operations; Transporting | 46 | Expired |
| US6824718B2 | Process of making a fibrous electret web | Textiles; Paper | 45 | Expired |
| US5478466A | Cartridge filters with insoluble enzyme particulates contained thereon | Chemistry; Metallurgy | 30 | Expired |
| USD843562S1 | Valve cover with diamond pattern | General | 15 | Active |
| USD882758S1 | Valve cover | General | 11 | Active |
| USD849245S1 | Valve cover | General | 9 | Active |
| USD704824S1 | Respirator having folded nose region | General | 9 | Active |
| USD828546S1 | Valve cover with openings | General | 9 | Active |
| USD842983S1 | Valve cover | General | 8 | Active |
| USD827811S1 | Valve cover | General | 8 | Active |
| US5614105A | Cartridge filters with insoluble enzyme particulates contained thereon | Chemistry; Metallurgy | 8 | Expired |
| USD900306S1 | Valve cover | General | 7 | Active |
| USD827812S1 | Valve cover with openings | General | 7 | Active |
| US12070634B2 | Exhalation valve and respirator including same | Human Necessities | 0 | Active |
| US12017175B2 | Pleated air filter with bridging filaments and continuous-contact filaments | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.