John David Roberts

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West Chester, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Winged sanitary napkin having barrier means
- Patent number 5,820,618
- Issue date Oct 13, 1998
- The Procter & Gamble Company
- John David Roberts
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Sanitary napkin having barrier means
- Patent number 5,649,917
- Issue date Jul 22, 1997
- The Procter & Gamble Company
- John David Roberts
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE