Ralph Spickermann
13Patents
5h-index
11Co-inventors
63Inventor score
Filing activity: Oct 30, 1998 → Apr 27, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6522697B1 | Use of higher order modulation techniques to transmit large aggregate data rates on an optical link with relatively low speed electronics | Electricity | 50 | Expired |
| US6362903B1 | Use of higher order modulation techniques to transmit information on passbands of a dispersion-limited fiber link | Electricity | 12 | Expired |
| US7260329B1 | All optical time division multiplexer and packet switch using optical codewords and optically actuated optical switches | Electricity | 6 | Expired |
| US6407837B1 | Use of bandwidth efficient modulation techniques in a wavelength division multiplexed optical link | Electricity | 6 | Expired |
| US7085500B2 | Programmable optical vector modulator and method for use in coherent optical communications | Electricity | 5 | Expired |
| US6963677B1 | Optical memory and logic using cross-switches | Physics | 4 | Expired |
| US10268044B1 | Three-dimensional (3D) immersive viewer system | Physics | 3 | Active |
| US8997678B2 | Underwater load-carrier | Fixed Constructions | 2 | Active |
| US6590683B1 | Bandwidth efficient phase shift keyed modulation over nonlinear distortion limited optical fiber links | Electricity | 1 | Expired |
| US6847741B2 | Optically induced total internal reflection X-junction waveguide optical switch, network and optical switching method | Physics | 1 | Expired |
| US11455710B2 | Device and method of object detection | Electricity | 0 | Active |
| US9298000B2 | Method and apparatus for beam steering | Physics | 0 | Active |
| US11366230B2 | Device and method of optical range imaging | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.