Ralf Hoffmann
66Patents
8h-index
91Co-inventors
81Inventor score
Filing activity: Feb 5, 1992 → Jun 30, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6996469B2 | Method of route calculation and method of navigation | Physics | 64 | Expired |
| US6411895B1 | Navigation method for computing a travel route considering parking place location and occupancy | Physics | 57 | Expired |
| US9275815B2 | Relay having two switches that can be actuated in opposite directions | Electricity | 34 | Active |
| US6849684B2 | Molded soft elastomer/hard polyester composition with noise damping properties | Performing Operations; Transporting | 25 | Expired |
| US5345781A | Device for cooling of fluids and edible foams | Human Necessities | 23 | Expired |
| US6082120A | Apparatus and process for cooling foam products | Human Necessities | 21 | Expired |
| US7072765B2 | Route calculation method | Physics | 10 | Expired |
| USRE36390E | Device for cooling of fluids and edible foams | General | 9 | Expired |
| US7135946B2 | Electromagnetic relay having at least one relay actuator and a receptacle for relay actuators | Electricity | 8 | Expired |
| US6611184B2 | Relay | Electricity | 7 | Expired |
| US6111487A | Electromagnetic relay with a narrow construction and a method of manufacture thereof | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7180398B2 | Coil former for an electromechanical actuator | Electricity | 6 | Expired |
| US6194475A | Use of metal salts of ricinoleic acid in producing polyurethane | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6714862B1 | Navigation method and a navigation system for determining a route for a means of transport moving from starting point to a destination | Physics | 4 | Expired |
| US6535813B1 | Method and system for selecting traffic information services receivable by at least one mobile receiver | Physics | 4 | Expired |
| US8946580B2 | Contact bridge with blow magnets | Electricity | 4 | Active |
| US5453655A | Single-based incadescent lamp construction | Electricity | 3 | Expired |
| US6403664B1 | Combination of metal salts of ricinoleic acid with reactive amines in producing polyurethane forms | Chemistry; Metallurgy | 3 | Expired |
| US10541097B2 | Electromechanical relay, terminal block, and electromechanical relay assembly | Electricity | 3 | Active |
| US6711498B1 | Method for operating a navigation system for a vehicle | Physics | 2 | Expired |
| US6847886B2 | Method and apparatus for finding a location in a digital map | Physics | 2 | Expired |
| US5735473A | Method and apparatus for avoiding ribbon windings | Performing Operations; Transporting | 2 | Expired |
| US6576682B2 | Use of reactive amines for the preparation for polyurethane foams | Chemistry; Metallurgy | 2 | Expired |
| US6674353B1 | Magnet system for a relay | Electricity | 1 | Expired |
| US8749330B2 | Electric contact element and method for producing an electric contact element | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.