Li Wei Tu

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Westfield, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Light emitting diode
- Patent number 5,226,053
- Issue date Jul 6, 1993
- AT&T Bell Laboratories
- Alfred Y. Cho
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical devices with electron-beam evaporated multilayer mirror
- Patent number 5,206,871
- Issue date Apr 27, 1993
- AT&T Bell Laboratories
- Dennis G. Deppe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Elimination of heterojunction band discontinuities
- Patent number 5,170,407
- Issue date Dec 8, 1992
- AT&T Bell Laboratories
- Erdmann F. Schubert
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vertical cavity surface emmitting lasers with transparent electrodes
- Patent number 5,115,441
- Issue date May 19, 1992
- AT&T Bell Laboratories
- Rose F. Kopf
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Vertical cavity surface emitting lasers with electrically conductin...
- Patent number 5,068,868
- Issue date Nov 26, 1991
- AT&T Bell Laboratories
- Dennis G. Deppe
- H01 - BASIC ELECTRIC ELEMENTS