William Frederick Ashworth

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Lower Hutt, NZ

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for forming a halftone screen
- Patent number 9,578,205
- Issue date Feb 21, 2017
- Megadot Systems Limited
- William Frederick Ashworth
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and system for forming a halftone screen
- Patent number 9,208,418
- Issue date Dec 8, 2015
- Megadot Systems Limited
- William Frederick Ashworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Halftone patterns
- Patent number 7,268,920
- Issue date Sep 11, 2007
- Megadot Systems Limited
- William Frederick Ashworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for preparing color screens in a halftone image
- Patent number 6,072,592
- Issue date Jun 6, 2000
- Megadot Systems Limited
- William Frederick Ashworth
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for preparing color screens in a halftone image
- Patent number 5,680,222
- Issue date Oct 21, 1997
- Megadot Systems Limited
- William Frederick Ashworth
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND SYSTEM FOR FORMING A HALFTONE SCREEN
- Publication number 20150341526
- Publication date Nov 26, 2015
- MEGADOT SYSTEMS LIMITED
- William Frederick Ashworth
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD AND SYSTEM FOR FORMING A HALFTONE SCREEN
- Publication number 20140340716
- Publication date Nov 20, 2014
- MEGADOT SYSTEMS LIMITED
- William Frederick Ashworth
- G06 - COMPUTING CALCULATING COUNTING