John R. Welk

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Addison, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Holographic optical interconnect system and method for board-to-boa...
- Patent number 5,832,147
- Issue date Nov 3, 1998
- Motorola, Inc.
- Jang-Hun Yeh
- G02 - OPTICS
Information Patent Grant
Digital cellular TDM system employing 6:1 packing of transcoded inf...
- Patent number 5,111,454
- Issue date May 5, 1992
- Motorola, Inc.
- Nelson C. Hung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Improved memory control for a scanning CRT visual display system
- Patent number 4,673,930
- Issue date Jun 16, 1987
- Motorola, Inc.
- Joseph Bujalski
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multicolor display from monochrome or multicolor control unit
- Patent number 4,549,172
- Issue date Oct 22, 1985
- Motorola, Inc.
- John R. Welk
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Logic controlled degaussing system
- Patent number 4,458,178
- Issue date Jul 3, 1984
- Motorola, Inc.
- David L. Tenney
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color convergence data processing in a CRT color display station
- Patent number 4,451,824
- Issue date May 29, 1984
- Motorola, Inc.
- David J. Thayer
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS