Chang; Leroy L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Leroy L..The latest application filed is for "class of magnetic materials for solid state devices".
- Chang; Leroy L. - Goldens Bridge NY
- Chang; Leroy L. - Lake Mohegan NY
- Chang; Leroy L. - Mohegan NY
- Chang; Leroy L. - Mohegan Lake NY
- Chang; Leroy L - Tarrytown NY
| Patent | Date |
|---|---|
| Class of magnetic materials for solid state devices Grant 5,294,287 - Chang , et al. March 15, 1 | 1994-03-15 |
| Field effect transistor Grant 4,743,951 - Chang , et al. May 10, 1 | 1988-05-10 |
| Semiconductor device with hole conduction via strained lattice Grant 4,665,415 - Esaki , et al. May 12, 1 | 1987-05-12 |
| MBE Growth technique for matching superlattices grown on GaAs substrates Grant 4,558,336 - Chang , et al. December 10, 1 | 1985-12-10 |
| FET With heterojunction induced channel Grant 4,538,165 - Chang , et al. August 27, 1 | 1985-08-27 |
| Superlattice ultrasonic wave generator Grant 4,469,977 - Quinn , et al. September 4, 1 | 1984-09-04 |
| Heterojunction superlattice with potential well depth greater than half the bandgap Grant 4,250,515 - Esaki , et al. February 10, 1 | 1981-02-10 |
| Molecular-beam epitaxy system and method including hydrogen treatment Grant 4,239,584 - Chang , et al. December 16, 1 | 1980-12-16 |
| Controlled absorption in heterojunction structures Grant 4,208,667 - Chang , et al. June 17, 1 | 1980-06-17 |
| Infrared optical devices of layered structure Grant 4,205,331 - Esaki , et al. May 27, 1 | 1980-05-27 |
| Heterojunction tunneling base transistor Grant 4,173,763 - Chang , et al. November 6, 1 | 1979-11-06 |
| Semiconductor structure Grant 4,137,542 - Chang , et al. January 30, 1 | 1979-01-30 |
| Molecular beam epitaxy of alternating metal-semiconductor films Grant 3,929,527 - Chang , et al. December 30, 1 | 1975-12-30 |
| Semiconductor Device Having Many Fold Iv Characteristics Grant 3,668,480 - Chang , et al. June 6, 1 | 1972-06-06 |
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