David Norman Ludington

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Newtown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electrostatic sensing chuck using area matched electrodes
- Patent number 6,724,609
- Issue date Apr 20, 2004
- Delsys Pharmaceutical Corporation
- Hoi Cheong Sun
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrostatic sensing chuck using area matched electrodes
- Patent number 6,370,005
- Issue date Apr 9, 2002
- Delsys Pharmaceutical Corporation
- Hoi Cheong Sun
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Electrostatic sensing chuck using area matched electrodes
- Publication number 20020167780
- Publication date Nov 14, 2002
- Hoi Cheong Sun
- H01 - BASIC ELECTRIC ELEMENTS