Marvin J. Halfen
16Patents
2h-index
12Co-inventors
47Inventor score
Filing activity: Nov 24, 2010 → Mar 6, 2025
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9642457B1 | Adjustable frame for hanging folders | Human Necessities | 8 | Active |
| US10065446B1 | User selectable file tab system and method | Performing Operations; Transporting | 4 | Active |
| US8650784B2 | File folder and repositionable tab | Physics | 2 | Active |
| US9114597B1 | Protected prong file fastener and method of manufacture | Emerging Cross-Sectional Technologies | 1 | Active |
| US8414211B1 | Protected prong file fastener | Performing Operations; Transporting | 1 | Active |
| US8747588B1 | Protected prong file fastener and method of making | Performing Operations; Transporting | 1 | Active |
| US8176822B1 | Hole punch and compressor with alignment member | Emerging Cross-Sectional Technologies | 1 | Active |
| US8746314B1 | Protected prong file fastener and method of manufacture | Emerging Cross-Sectional Technologies | 1 | Active |
| USD1090699S1 | File tab | General | 0 | Active |
| USD1090700S1 | File tab | General | 0 | Active |
| US9994065B2 | Adjustable frame for hanging folders | Human Necessities | 0 | Active |
| US8678061B1 | Apparatus and method of attaching a file fastener to a backboard | Emerging Cross-Sectional Technologies | 0 | Active |
| USD691199S1 | Filing box | General | 0 | Active |
| US9839937B1 | Method of making a powder coated protected prong file fastener | Performing Operations; Transporting | 0 | Active |
| USD1091696S1 | File tab | General | 0 | Active |
| USD1090698S1 | File tab | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.