Roger Spink
20Patents
10h-index
8Co-inventors
68Inventor score
Filing activity: Nov 27, 1996 → Oct 18, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6483948B1 | Microscope, in particular a stereomicroscope, and a method of superimposing two images | Physics | 78 | Expired |
| US6069733A | Stereomicroscope | Physics | 36 | Expired |
| US5867309A | Stereomicroscope | Physics | 36 | Expired |
| US5912763A | Stereomicroscope including a camera for receiving different images at different time intervals | Physics | 26 | Expired |
| US6765718B1 | Stereo surgical microscope having an apparatus for reflecting in information | Physics | 24 | Expired |
| US6337765B1 | Stereomicroscope | Physics | 20 | Expired |
| US6678090B2 | Microscope | Human Necessities | 19 | Expired |
| US6661572B2 | Enhanced shutter control for image insertion in a stereo microscope | Physics | 16 | Expired |
| US5953114A | Method of determining measurement-point position data and device for measuring the magnification of an optical beam path | Human Necessities | 11 | Expired |
| US6043890A | Arrangement for determining the position of a surgical microscope | Human Necessities | 10 | Expired |
| US5841149A | Method of determining the distance of a feature on an object from a microscope, and a device for carrying out the method | Human Necessities | 10 | Expired |
| US6884980B2 | Method and apparatus for automatic focusing of an optical device | Physics | 9 | Expired |
| US6307636A | Method for telemeasuring and telemeter | Physics | 9 | Expired |
| US6304372A | Microscope including a fade-in element and related method of using a microscope | Human Necessities | 6 | Expired |
| US7649685B2 | Fluorescence/infrared device for surgical microscopes | Human Necessities | 4 | Active |
| US6081370A | Determining the position of a moving object | Human Necessities | 3 | Expired |
| US7394552B2 | Method for measuring the separation of extended objects in conjunction with an optical observation system and microscope for carrying out the same | Human Necessities | 2 | Expired |
| US11793398B2 | Medical device for the observation of a partly fluorescent object, using a filter system with a transmission window | Physics | 0 | Active |
| US12416796B2 | Autofocus system, an optical system, a method for an autofocus system and a computer program | Electricity | 0 | Active |
| US11517188B2 | Medical device for the observation of a partly fluorescent object, using a filter system with a transmission window | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.