DD

Dean Duffield

PV Precision Valve: 2 patents #18 of 36Top 50%
Overall (All Time): #1,549,686 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8118197 Method of making aerosol valve mounting cups and resultant cups 2012-02-21
6010040 Mounting cup for an aerosol container Charles Martin Tansey 2000-01-04
4599126 Method for severing laminates 1986-07-08