Rolf Heidemann
82Patents
19h-index
41Co-inventors
84Inventor score
Filing activity: Mar 9, 1977 → Apr 11, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5550667A | Optical transmitter | Electricity | 98 | Expired |
| US5251053A | Radio communication system | Electricity | 63 | Expired |
| US5337175A | Optical communications system for the subscriber area with optical amplifiers | Electricity | 59 | Expired |
| US5162937A | Optical cable television transmission system | Electricity | 47 | Expired |
| US9671221B2 | Portable device for optically measuring three-dimensional coordinates | Electricity | 43 | Active |
| US5517232A | Cable television distribution network with video-on-demand transmission | Electricity | 39 | Expired |
| US5128790A | Optical cable television transmission system | Electricity | 39 | Expired |
| US5475521A | Optical communication system with monitoring device for avoiding giant pluses | Electricity | 37 | Expired |
| US5412746A | Optical coupler and amplifier | Physics | 35 | Expired |
| US8970823B2 | Device for optically scanning and measuring an environment | Physics | 31 | Active |
| US9599455B2 | Device for optically scanning and measuring an environment | Electricity | 29 | Active |
| US9909855B2 | Registration of three-dimensional coordinates measured on interior and exterior portions of an object | Physics | 29 | Active |
| US9964402B2 | Two-camera triangulation scanner with detachable coupling mechanism | Electricity | 28 | Active |
| US10126415B2 | Probe that cooperates with a laser tracker to measure six degrees of freedom | Physics | 28 | Active |
| US9602811B2 | Method for optically measuring three-dimensional coordinates and controlling a three-dimensional measuring device | Electricity | 26 | Active |
| US5111334A | Multi-stage fiber-optic amplifier | Electricity | 26 | Expired |
| US5291326A | Optical signal transmission system, particularly optical cable television system, with monitoring and service-channel facilities | Electricity | 26 | Expired |
| US9693040B2 | Method for optically measuring three-dimensional coordinates and calibration of a three-dimensional measuring device | Electricity | 25 | Active |
| US5378937A | Equalizer for optical communication systems | Electricity | 20 | Expired |
| US5363385A | Fiber-optic amplifier with control of the pump light wavelength | Electricity | 19 | Expired |
| US5302922A | Equalizer for optically transmitted analog information signals | Electricity | 19 | Expired |
| US10408606B1 | Quality inspection system and method of operation | Physics | 19 | Active |
| US5333089A | Optical communications system employing fiber-optic amplifiers and control of the transmitter wavelength | Electricity | 18 | Expired |
| US5285306A | Optical communication system with a fiber optic amplifier | Electricity | 18 | Expired |
| US6310706A | Transmitting/receiving facility and method for transmitting broadband signals as well as transmitting/receiving facility for receiving broadband signals | Electricity | 17 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.