William P. Risk
21Patents
12h-index
26Co-inventors
81Inventor score
Filing activity: Feb 18, 1966 → Oct 28, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4791631A | Wide tolerance, modulated blue laser source | Electricity | 58 | Expired |
| US8909576B2 | Neuromorphic event-driven neural computing architecture in a scalable neural network | Physics | 54 | Active |
| US6188768A | Autocompensating quantum cryptographic key distribution system based on polarization splitting of light | Electricity | 53 | Expired |
| US5038352A | Laser system and method using a nonlinear crystal resonator | Electricity | 52 | Expired |
| US5095491A | Laser system and method | Electricity | 27 | Expired |
| US4781425A | Fiber optic apparatus and method for spectrum analysis and filtering | Physics | 25 | Expired |
| US6218657A | System for gated detection of optical pulses containing a small number of photons using an avalanche photodiode | Physics | 23 | Expired |
| US4793676A | Optical fiber acousto-optic amplitude modulator | Physics | 21 | Expired |
| US5060233A | Miniature blue-green laser source using second-harmonic generation | Electricity | 18 | Expired |
| US4735485A | Acousto-optic frequency shifter using optical fiber and method of manufacturing same | Physics | 16 | Expired |
| US4735476A | Acousto-optic bragg cell | Physics | 16 | Expired |
| US9269044B2 | Neuromorphic event-driven neural computing architecture in a scalable neural network | Physics | 15 | Active |
| US5394414A | Laser system and method having a nonlinear crystal resonator | Physics | 12 | Expired |
| US5048047A | Passive absorptive resonator laser system and method | Electricity | 11 | Expired |
| US4872738A | Acousto-optic fiber-optic frequency shifter using periodic contact with a surface acoustic wave | Physics | 11 | Expired |
| US5224193A | First order mode frequency doubler system and method | Physics | 10 | Expired |
| US5084840A | Passive absorptive rensonator laser system and method | Electricity | 4 | Expired |
| US11171450B2 | Method and apparatus for the alignment and locking of removable elements with a connector | Electricity | 2 | Active |
| US10504021B2 | Neuromorphic event-driven neural computing architecture in a scalable neural network | Physics | 2 | Active |
| US11580366B2 | Neuromorphic event-driven neural computing architecture in a scalable neural network | Physics | 0 | Active |
| US10966522B2 | Drawer latching assembly | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.