Hermann Fruhm
14Patents
9h-index
8Co-inventors
65Inventor score
Filing activity: Dec 1, 1992 → May 25, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5265504A | Cartridge type screwdriver | Performing Operations; Transporting | 107 | Expired |
| US6352011B1 | Two-ended screwdriver bits | Performing Operations; Transporting | 57 | Expired |
| USD462596S1 | Screwdriver bit | General | 44 | Expired |
| USD445325S | Screwdriver bit | General | 34 | Expired |
| US6769790B2 | Theatrical lighting system with moving lights | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| USD468977S1 | Paint can scraping tool | General | 22 | Expired |
| USD507728S1 | Paint can opening and cleaning tool | General | 21 | Expired |
| US6510768B2 | Battery-powered screwdriver with integral bit holder | Performing Operations; Transporting | 20 | Expired |
| US7258046B2 | Screwdriver bit cartridge retainer | Performing Operations; Transporting | 10 | Expired |
| US9429282B2 | Apparatus and system for a rotating mounting apparatus for stage devices | Mechanical Engineering; Lighting; Heating | 5 | Active |
| USD1039932S1 | Screwdriver | General | 2 | Active |
| US11794317B2 | Multipurpose tool | Performing Operations; Transporting | 1 | Active |
| USD1069540S1 | Screwdriver | General | 0 | Active |
| USD985349S1 | Screwdriver bit | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.