Werner Hoffmann
80Patents
12h-index
79Co-inventors
87Inventor score
Filing activity: Jun 3, 1974 → Nov 21, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5320579A | Energy absorbing driveshaft connections | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US5222915A | Self-destructing coupling assembly for use in propeller shafts of motor vehicles | Emerging Cross-Sectional Technologies | 30 | Expired |
| US8215440B2 | Drive train for a vehicle with connectable secondary axle | Performing Operations; Transporting | 27 | Active |
| US4333116A | Positioning device for a magnetic head of a magnetic tape recorder | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4276575A | Tape guide for high-speed tape transport apparatus | Physics | 21 | Expired |
| US5253947A | Connection between a tubular shaft made of a fiber composite material and a metal journal, as well as a method of producing such a connection | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4747806A | Detachable flange connection for torque transmitting drive shaft particularly for connecting two parts of a cardan drive shaft for motor vehicles | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4347537A | Tape cartridge assembly and tape transport apparatus for use therewith | Physics | 16 | Expired |
| US6209673A | All wheel drive system for a motor vehicle | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US5087147A | Assembly of shaft and hub member | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4113781A | Phenylpropanals | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4654167A | p-Alkoxycyclohexylalkanols and p-alkoxycyclohexylalkyl esters and their use as scents | Chemistry; Metallurgy | 12 | Expired |
| US4773891A | Drive shaft of fibre-reinforced plastic material | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5295744A | Resilient central bearing for a propeller shaft | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4088681A | Substituted 1-alkenynyl-cyclohexanols and -cyclohexenes and processes for their preparation | Chemistry; Metallurgy | 9 | Expired |
| US4238088A | Guide for a thin tape-like recording medium, particularly a magnetic tape | Physics | 8 | Expired |
| US4729877A | Apparatus for the solid-bed polymerization of monomers | Performing Operations; Transporting | 7 | Expired |
| US4426332A | Preparation of resorcinol derivatives | Chemistry; Metallurgy | 7 | Expired |
| US4031141A | 12-Alkoxy-3,7,11-trimethyl-dodecatetraenes | Chemistry; Metallurgy | 6 | Expired |
| US6339110B1 | Process for rigid polyurethane foams | Chemistry; Metallurgy | 6 | Expired |
| US4242518A | Thiophene compounds and their manufacture | Chemistry; Metallurgy | 6 | Expired |
| US6412589B1 | Torque arm assembly for a motor vehicle | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4239897A | Thiophene compounds and their manufacture | Chemistry; Metallurgy | 5 | Expired |
| US4347388A | 3,6-Dimethyl-3-hydroxy-oct-1-ynes and -oct-1-enes, derivatives of these, and their use as scents, and in the preparation of 3,6-dimethyl-3-hydroxy-octane | Chemistry; Metallurgy | 5 | Expired |
| US3932520A | 2-Methyl-2-hepten-6-on-1-al acetals | Chemistry; Metallurgy | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.