Ernst Warncke
25Patents
13h-index
9Co-inventors
66Inventor score
Filing activity: Jul 1, 1974 → Jun 13, 1983
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4470413A | Protective breathing apparatus including a mask and mouthpiece | Human Necessities | 93 | Expired |
| US4111197A | Respiratory device coupling construction | Mechanical Engineering; Lighting; Heating | 90 | Expired |
| US4378011A | Lung controlled pressure gas respirator for use with an oxygen mask and valving mechanism therefor | Emerging Cross-Sectional Technologies | 86 | Expired |
| US4574799A | Gas mask construction | Human Necessities | 79 | Expired |
| US4253454A | Respirator package for carrying on a person | Human Necessities | 41 | Expired |
| US4172454A | Heat and gas protection suit | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US4146025A | Device for testing the tightness of fit of gas masks | Human Necessities | 34 | Expired |
| US4083065A | Protective helmet and full face mask construction | Human Necessities | 34 | Expired |
| US4423723A | Closed cycle respirator with emergency oxygen supply | Performing Operations; Transporting | 27 | Expired |
| US4403608A | Pressure gas ventilated protective suit and method of operating the suit | Human Necessities | 25 | Expired |
| US4440166A | Electrically and mechanically controllable closed cycle respirator | Performing Operations; Transporting | 23 | Expired |
| US4154235A | Escape filter device having protective hood | Human Necessities | 20 | Expired |
| US4508115A | Protective breathing hood for escape purposes | Human Necessities | 16 | Expired |
| US4498470A | Respirator having circulating breathing gas | Human Necessities | 12 | Expired |
| US4364384A | Excess pressure respirator with pressurized breathing gas shutoff | Human Necessities | 11 | Expired |
| US4200092A | Respirator having an oxygen-releasing chemical cartridge | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4019507A | Protective breathing device having a filtering apparatus and additional oxygen supply for emergency use | Human Necessities | 10 | Expired |
| US4213453A | Breathing device having oxygen donor chemical cartridge | Human Necessities | 9 | Expired |
| US4275723A | Warning device for breathing apparatus having a pressure gas supply | Emerging Cross-Sectional Technologies | 8 | Expired |
| US3935861A | Protective breathing mask with compressed air supply for breathing | Human Necessities | 7 | Expired |
| US4249473A | Warning signal producing device for protective breathing apparatus | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4289238A | Readiness receptacle for respirators | Human Necessities | 5 | Expired |
| US4178961A | Lung-controlled membrane valve for compressed gas respirators | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4187843A | Respirator having an oxygen-releasing chemical cartridge and means for attaching an additional cartridge | Human Necessities | 4 | Expired |
| US4256698A | Chemical cartridge for respirators | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.