Erhard Hoffmann
13Patents
5h-index
29Co-inventors
66Inventor score
Filing activity: May 21, 1984 → Jul 25, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7166939B2 | Electric hand tool | Electricity | 41 | Expired |
| US7258351B2 | Quick-action chuck | Emerging Cross-Sectional Technologies | 30 | Expired |
| US7628219B2 | Handle with detecting unit | Performing Operations; Transporting | 26 | Active |
| US7040972B2 | Power tool | Performing Operations; Transporting | 16 | Expired |
| US8067860B2 | Electrical device, in particular an electrical hand-held power tool | Emerging Cross-Sectional Technologies | 14 | Active |
| US4565111A | Device for rotating and axially moving a bolt | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7198439B2 | Quick chuck | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6886269B2 | Locating device | Physics | 3 | Expired |
| US7444760B2 | Marking device | Physics | 3 | Expired |
| US7414235B2 | Handheld locating device with a sensor for detecting motion parameters | Physics | 3 | Expired |
| US7453253B2 | Locating device and corresponding method | Physics | 2 | Expired |
| US6830814B1 | Layer containing an electroconductive transparent material, method for producing same and uses thereof | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7024784B2 | Device equipped with a sensor | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.