Frank Hofmann
60Patents
8h-index
67Co-inventors
81Inventor score
Filing activity: Jan 25, 1980 → Nov 23, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7499630B2 | Method for playing back multimedia data using an entertainment device | Physics | 31 | Expired |
| US7793193B2 | Method for error correction of packet data | Electricity | 26 | Expired |
| US7280809B2 | Method for adjusting transmission parameters from a transmitter for digital radio signals | Electricity | 13 | Expired |
| US6822953B1 | Method for transmitting radio signals and receiver for receiving radio signals | Electricity | 10 | Expired |
| US8578751B2 | Tool with different effective areas | Emerging Cross-Sectional Technologies | 9 | Active |
| US4319717A | Spray gun for applying granulated material | Performing Operations; Transporting | 8 | Expired |
| US6047902A | Road marking machine with a pump combination driven in proportion with the traveling speed | Fixed Constructions | 8 | Expired |
| US4436230A | Arrangement for pulsation-free feeding of a liquid medium | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7980600B2 | Permanent joint comprised of a fitting, a sleeve and a pipe, as well as fitting for fluid conduits and a sleeve for fluid conduit pipes | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US6922973B1 | Device and method for placing loose sheet products | Performing Operations; Transporting | 7 | Expired |
| US9071913B2 | Network system for audio equipment, method and computer program | Electricity | 7 | Active |
| US6113368A | Method for supplying liquids by means of a pump combination comprising of two single oscillating displacement pumps, and device for accomplishing the method | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7093677B2 | Percussion drill head | Fixed Constructions | 6 | Expired |
| US9334987B2 | Pressing jaw, method for producing a non-detachable pipe joint, fitting and system consisting of a pressing jaw and a fitting | Emerging Cross-Sectional Technologies | 6 | Active |
| US8567034B2 | Method for the permanent connection of workpieces, pressing tool, and attachment for a pressing tool | Emerging Cross-Sectional Technologies | 5 | Active |
| US7525466B2 | Hardware-efficient reconstruction for periodic non-uniformly sampled signals | Electricity | 5 | Active |
| US7484398B2 | Compressive tool | Performing Operations; Transporting | 4 | Active |
| US7905713B2 | Method of operation of a reciprocating positive-displacement pump and reciprocating positive-displacement pump | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US4401265A | Method and devices for making traffic lines or the like | Fixed Constructions | 3 | Expired |
| US10139024B2 | Pressing jaw, method for producing a non-detachable pipe joint, fitting and system consisting of a pressing jaw and a fitting | Emerging Cross-Sectional Technologies | 3 | Active |
| US11129029B2 | Road-side network node and method to operate the road-side network node | Emerging Cross-Sectional Technologies | 3 | Active |
| US7142608B2 | Method for the transmission of digital data by means of radio signals with orthogonal frequency division multiplexing (OFDM) | Electricity | 2 | Expired |
| US8018830B2 | Transmission of a data stream using OFDM symbols at two carrier frequencies having overlapping superframes of a commensurable time duration | Electricity | 2 | Active |
| US6820645B2 | Unlockable non-return valve for very high system pressures | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6843508B2 | Hydraulic device | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.