David A. White

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Folcroft, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Combined jar and closure
- Patent number D347578
- Issue date Jun 7, 1994
- E. I. Du Pont de Nemours and Company
- Roy Curzon
- D09 - Packages and containers for goods
Information Patent Grant
Combined jar and closure
- Patent number D331879
- Issue date Dec 22, 1992
- E. I. Du Pont de Nemours and Company
- Roy Curzon
- D09 - Packages and containers for goods
Information Patent Grant
Thick film container
- Patent number 5,099,998
- Issue date Mar 31, 1992
- E. I. Du Pont de Nemours and Company
- Roy Curzon
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Fluid transfer device
- Patent number 4,808,381
- Issue date Feb 28, 1989
- E. I. Du Pont de Nemours and Company
- Gordon L. McGregor
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Vertical filing system
- Patent number 4,368,935
- Issue date Jan 18, 1983
- United Filing Corporation
- David A. White
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER