Pedro Emanuel Vasconcelos de Queiroz Vieira

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Cascais, PT

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Patents Grantslast 30 patents

Information Patent Grant
Volatile material diffuser and method of preventing undesirable mix...
- Patent number 8,320,751
- Issue date Nov 27, 2012
- S. C. Johnson & Son, Inc.
- Jose Porchia
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Dispensing device
- Patent number D584809
- Issue date Jan 13, 2009
- S. C. Johnson & Son, Inc.
- Jose Porchia
- D23 - Environmental heating and cooling