Donald B. Ellingham

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Greenwich, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Moisture detecting devices such as for diapers and diapers having s...
- Patent number 5,760,694
- Issue date Jun 2, 1998
- Knox Security Engineering Corporation
- Ofer Nissim
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Balancing jigsaw puzzle sculpture
- Patent number 5,714,212
- Issue date Feb 3, 1998
- AKK Foundation, LLC
- Ofer Nissim
- B44 - DECORATIVE ARTS
Information Patent Grant
Switch lever operating device with automatic timer
- Patent number 5,306,957
- Issue date Apr 26, 1994
- Nissim; Ofer
- Donald B. Ellingham
- H01 - BASIC ELECTRIC ELEMENTS