Charles J. Prazak III

Person

Elmhurst, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Mechanically indexed mask stretching apparatus
- Patent number 5,127,866
- Issue date Jul 7, 1992
- Zenith Electronics Corporation
- Robert Adler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for making flat tension mask color cathode ray...
- Patent number 5,059,147
- Issue date Oct 22, 1991
- Zenith Electronics Corporation
- Robert Adler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for making flat tension mask color cathode ray...
- Patent number 4,998,901
- Issue date Mar 12, 1991
- Zenith Electronics Corporation
- Robert Adler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for making flat tension mask color cathode ray...
- Patent number 4,973,280
- Issue date Nov 27, 1990
- Zenith Electronics Corporation
- Robert Adler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Methods and apparatus for making flat tension mask color cathode ra...
- Patent number 4,902,257
- Issue date Feb 20, 1990
- Zenith Electronics Corporation
- Robert Adler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Front assembly for a tension mask color cathode ray tube having a l...
- Patent number 4,891,546
- Issue date Jan 2, 1990
- Zenith Electronics Corporation
- Lawrence W. Dougherty
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cataphoretic process for screening color cathode ray tubes
- Patent number 4,891,110
- Issue date Jan 2, 1990
- Zenith Electronics Corporation
- Philomena C. Libman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Inner surface specular reflection suppression in flat CRT faceplate
- Patent number 4,884,006
- Issue date Nov 28, 1989
- Zenith Electronics Corporation
- Charles J. Prazak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Flat tension mask color CRT front assembly with improved mask for d...
- Patent number 4,794,299
- Issue date Dec 27, 1988
- Zenith Electronics Corporation
- Wayne R. Chiodi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube and tensible shadow mask blank for use therein
- Patent number 4,767,962
- Issue date Aug 30, 1988
- Zenith Electronics Corporation
- Robert Adler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process of manufacturing for a high-resolution color cathode ray tube
- Patent number 4,678,447
- Issue date Jul 7, 1987
- Zenith Electronics Corporation
- Charles J. Prazak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Registration-enhancing means and method for color cathode ray tubes...
- Patent number 4,672,260
- Issue date Jun 9, 1987
- Zenith Electronics Corporation
- Charles J. Prazak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube and tensible shadow mask blank for use therein
- Patent number 4,652,791
- Issue date Mar 24, 1987
- Zenith Electronics Corporation
- Kazimir Palac
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for screening slot-mask, stripe screen color c...
- Patent number 4,078,239
- Issue date Mar 7, 1978
- Zenith Radio Corporation
- Charles J. Prazak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Non-settling process for coating a phosphor slurry on the inner sur...
- Patent number 4,052,519
- Issue date Oct 4, 1977
- Zenith Radio Corporation
- Charles J. Prazak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of controlled etching in the manufacture of a color selectio...
- Patent number 3,993,516
- Issue date Nov 23, 1976
- Zenith Radio Corporation
- Charles J. Prazak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for coating skirtless cathode ray tube panels
- Patent number 3,984,902
- Issue date Oct 12, 1976
- Zenith Radio Corporation
- Charles J. Prazak
- H01 - BASIC ELECTRIC ELEMENTS

Charles J. Prazak III

Person

Patents Grantslast 30 patents

Mechanically indexed mask stretching apparatus

Method and apparatus for making flat tension mask color cathode ray...

Method and apparatus for making flat tension mask color cathode ray...

Method and apparatus for making flat tension mask color cathode ray...

Methods and apparatus for making flat tension mask color cathode ra...

Front assembly for a tension mask color cathode ray tube having a l...

Cataphoretic process for screening color cathode ray tubes

Inner surface specular reflection suppression in flat CRT faceplate

Flat tension mask color CRT front assembly with improved mask for d...

Color cathode ray tube and tensible shadow mask blank for use therein

Process of manufacturing for a high-resolution color cathode ray tube

Registration-enhancing means and method for color cathode ray tubes...

Color cathode ray tube and tensible shadow mask blank for use therein

Method and apparatus for screening slot-mask, stripe screen color c...

Non-settling process for coating a phosphor slurry on the inner sur...

Method of controlled etching in the manufacture of a color selectio...

Apparatus for coating skirtless cathode ray tube panels