James A. Walker
93Patents
34h-index
76Co-inventors
91Inventor score
Filing activity: Jun 8, 1978 → Apr 25, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4864824A | Thin film shape memory alloy and method for producing | Electricity | 411 | Expired |
| US5510277A | Surface treatment for silicon substrates | Emerging Cross-Sectional Technologies | 401 | Expired |
| US5500761A | Micromechanical modulator | Physics | 358 | Expired |
| US5636052A | Direct view display based on a micromechanical modulation | Physics | 329 | Expired |
| US5943158A | Micro-mechanical, anti-reflection, switched optical modulator array and fabrication method | Physics | 228 | Expired |
| US5808781A | Method and apparatus for an improved micromechanical modulator | Physics | 169 | Expired |
| US5745271A | Attenuation device for wavelength multiplexed optical fiber communications | Physics | 137 | Expired |
| US5858814A | Hybrid chip and method therefor | Electricity | 131 | Expired |
| US5751469A | Method and apparatus for an improved micromechanical modulator | Physics | 122 | Expired |
| US5831262A | Article comprising an optical fiber attached to a micromechanical device | Physics | 110 | Expired |
| US5654819A | Micromechanical modulator | Physics | 97 | Expired |
| US6204946A | Reconfigurable wavelength division multiplex add/drop device using micromirrors | Electricity | 92 | Expired |
| US5943454A | Freespace optical bypass-exchange switch | Physics | 90 | Expired |
| US5949571A | Mars optical modulators | Physics | 88 | Expired |
| US5416872A | Arrangement for interconnecting an optical fiber an optoelectronic component | Electricity | 79 | Expired |
| US5170455A | Optical connective device | Physics | 77 | Expired |
| US5135590A | Optical fiber alignment method | Physics | 77 | Expired |
| US4700541A | Shape memory alloy actuator | Electricity | 68 | Expired |
| US7549893B1 | Modular in-wall medical services outlet system | Human Necessities | 62 | Active |
| US5185846A | Optical fiber alignment apparatus including guiding and securing plates | Physics | 62 | Expired |
| US6048751A | Process for manufacture of composite semiconductor devices | Electricity | 55 | Expired |
| US5966235A | Micro-mechanical modulator having an improved membrane configuration | Physics | 53 | Expired |
| US4625949A | Oxygen-fuel welding and cutting cabinet assembly | Performing Operations; Transporting | 48 | Expired |
| US5644876A | Modular medical gas services column | Human Necessities | 48 | Expired |
| US6549692B1 | Optical monitoring of the angular position of micro mirrors in an optical switch | Physics | 45 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.