Helmut A. Heine
34Patents
17h-index
19Co-inventors
78Inventor score
Filing activity: Mar 18, 1971 → May 5, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3934578A | Direct illumination otoscope | Human Necessities | 83 | Expired |
| US4675919A | Headband with cushion | Human Necessities | 75 | Expired |
| US4306546A | Endoscope | Human Necessities | 56 | Expired |
| USD607562S1 | Ophthalmoscope | General | 55 | Expired |
| US4273112A | Laryngoscope | Human Necessities | 51 | Expired |
| US7441282B2 | Headband apparatus for head-worn optical instruments | Human Necessities | 37 | Active |
| US5223863A | Binocular ophthalmoscope with tilting mirror | Physics | 35 | Expired |
| US4215678A | Endoscope | Human Necessities | 31 | Expired |
| US4382219A | Arrangement consisting of a battery handle for electro-optical diagnostic instruments, of a charger and of a storage cell | Emerging Cross-Sectional Technologies | 29 | Expired |
| US6666819B2 | Laryngoscope | Human Necessities | 26 | Expired |
| US4681413A | Headband with optical device adjustably coupled thereto | Human Necessities | 25 | Expired |
| US7387384B2 | Ophthalmoscope | Human Necessities | 24 | Expired |
| US4012686A | Power supply for illuminated instrument | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6139491A | Fibre-optic laryngoscope spatula with an exchangeable light-guide part | Human Necessities | 19 | Expired |
| USD572853S1 | Lamp | General | 17 | Expired |
| US4043646A | Filter mechanism with interconnected heat and color filters for optical examination devices | Human Necessities | 17 | Expired |
| US4060724A | Mounting apparatus for optical examination devices connected to a projector through a light-conducting cable | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4684227A | Binocular indirect ophthalmoscope | Human Necessities | 16 | Expired |
| US5333018A | Binocular ophthalmoscope | Human Necessities | 12 | Expired |
| US5542904A | Handgrip for an electro-optical diagnostic apparatus set | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4196980A | Opthalmoscope examination pattern having light transmissive fixation point | Human Necessities | 11 | Expired |
| US5448318A | Clamp assembly set for attaching a variety of optical devices to eyeglasses | Physics | 10 | Expired |
| US3948585A | Ophthalmoscope examination pattern having slit and surrounding ring | Human Necessities | 9 | Expired |
| US5479221A | Hand-held line grid interference retinometer | Human Necessities | 9 | Expired |
| US4082946A | Apparatus for controlling the illumination of optical examination devices | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.