Peter Hoffmann
48Patents
13h-index
66Co-inventors
84Inventor score
Filing activity: Jun 26, 1980 → Jul 13, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6141089A | Optical time domain reflectometer for measurements in optical networks with currently applied traffic signals | Physics | 62 | Expired |
| US4414488A | Apparatus for producing a discharge in a supersonic gas flow | Electricity | 41 | Expired |
| US6206202A | Cyclone separator | Performing Operations; Transporting | 35 | Expired |
| US4869708A | Sprocket retention/chain guide assembly | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US5801953A | Measurement apparatus and method for the adjustment of test/measurement parameters | Physics | 24 | Expired |
| US4756831A | Process and apparatus for removal of nitrate from surface and ground water, in particular drinking water | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4518006A | Backflow-preventing valve | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6842943B2 | Pressure-ball sliding doorstop | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7678564B2 | Container with at least one electrode | Chemistry; Metallurgy | 18 | Active |
| US4817883A | Measuring device for the pressing zone width of a roller on a roll of material and process and controller for making the roll with a predetermined roll hardness | Performing Operations; Transporting | 17 | Expired |
| US5527394A | Apparatus for plasma enhanced processing of substrates | Electricity | 16 | Expired |
| US7552953B2 | Door arrester | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5114351A | Sliding contact arrangement for carbon brushes | Electricity | 13 | Expired |
| US4676094A | Roll-firmness measuring device | Performing Operations; Transporting | 12 | Expired |
| US5478026A | Winding machine with support cylinders | Performing Operations; Transporting | 11 | Expired |
| US9292409B2 | Sensor interfaces | Physics | 10 | Active |
| US4986847A | Process and apparatus for at least temporarily simultaneously subjecting a molten metal to the action of a gas and fine-grain solid materials | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4491950A | Unstable laser resonator | Electricity | 9 | Expired |
| US7530141B2 | Door arrester | Fixed Constructions | 9 | Expired |
| US5855337A | Winding machine with support cylinders and air pressure relieved wind up rolls | Performing Operations; Transporting | 8 | Expired |
| US5193656A | Collector shoe for collector and process for producing it | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7716787B2 | Locking device | Fixed Constructions | 6 | Expired |
| US7870641B2 | Door stay with support housing | Fixed Constructions | 5 | Active |
| US5263562A | Carbon brush for collector | Performing Operations; Transporting | 5 | Expired |
| US6822168B2 | Cable harness arrangement | Electricity | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.