Walter Lang
12Patents
9h-index
17Co-inventors
65Inventor score
Filing activity: May 16, 1975 → Sep 5, 1984
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4644948A | Apparatus for dose measurement upon photocoagulation in the fundus of the eye | Human Necessities | 64 | Expired |
| US4364629A | Operation microscope having a small working distance | Physics | 50 | Expired |
| US4523821A | Device for examining anterior sections of the eye | Human Necessities | 46 | Expired |
| US4605287A | Surgical microscope for two surgeons | Physics | 33 | Expired |
| US4465348A | Apparatus for the subjective and objective determination of refraction | Human Necessities | 30 | Expired |
| US4341435A | Stereoscopic microscope for multiple observation | Physics | 25 | Expired |
| US4523818A | Ocular eyecups for wearers of glasses | Physics | 24 | Expired |
| US4172639A | Apparatus for determination of corneal astigmatism | Human Necessities | 14 | Expired |
| US4411502A | Ophthalmological instrument for examination of anterior and posterior portions of the eye | Human Necessities | 11 | Expired |
| US4403841A | Apparatus for examining anterior portions of the eye | Human Necessities | 9 | Expired |
| US4427269A | Method and apparatus for automatically compensating for rotation of images in articulated optical systems | Physics | 2 | Expired |
| US4026293A | Photocoagulator | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.