Norbert Koppel
4Patents
4h-index
9Co-inventors
39Inventor score
Filing activity: Jan 13, 1994 → Apr 6, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5433570A | Screw with unthreaded portion formed for absorbing bending loads | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US5551818A | Self-drilling fastener | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6558098B1 | Fixing element and method for fixing insulation tracks or plates on a fixed substructure | Fixed Constructions | 7 | Expired |
| US5823338A | Packaging for rod-shaped parts | Performing Operations; Transporting | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.