Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4622673 | Heteroepitaxial ridge overgrown laser | — | 1986-11-11 |
| 4602370 | Large optical cavity laser having a plurality of active layers | — | 1986-07-22 |
| 4599632 | Photodetector with graded bandgap region | Clyde George Bethea, Federico Capasso, Albert Lee Hutchinson, Barry Levine | 1986-07-08 |
| 4575919 | Method of making heteroepitaxial ridge overgrown laser | Ralph A. Logan | 1986-03-18 |
| 4564946 | Optical communications system using frequency shift keying | Nils A. Olsson | 1986-01-14 |
| 4512022 | Semiconductor laser having graded index waveguide | — | 1985-04-16 |
| 4476477 | Graded bandgap multilayer avalanche photodetector with energy step backs | Federico Capasso, Gareth F. Williams | 1984-10-09 |
| 4464211 | Method for selective area growth by liquid phase epitaxy | Ralph A. Logan | 1984-08-07 |
| 4464342 | Molecular beam epitaxy apparatus for handling phosphorus | — | 1984-08-07 |
| 4438446 | Double barrier double heterostructure laser | — | 1984-03-20 |
| 4435809 | Passively mode locked laser having a saturable absorber | Jan P. van der Ziel | 1984-03-06 |
| 4291327 | MOS Devices | — | 1981-09-22 |
| 4282541 | Planar P-I-N photodetectors | — | 1981-08-04 |
| 4269635 | Strip buried heterostructure laser | Ralph A. Logan | 1981-05-26 |
| 4264916 | Semiconductor barrier Josephson junction | — | 1981-04-28 |
| 4236122 | Mesa devices fabricated on channeled substrates | Alfred Yi Cho | 1980-11-25 |
| 4216036 | Self-terminating thermal oxidation of Al-containing group III-V compound layers | — | 1980-08-05 |
| 4194933 | Method for fabricating junction lasers having lateral current confinement | Ralph A. Logan | 1980-03-25 |
| 4190813 | Strip buried heterostructure laser | Ralph A. Logan | 1980-02-26 |