PH

Peter Hugo HOWARTH

3M: 1 patents #7,233 of 11,543Top 65%
Overall (All Time): #3,773,826 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5427282 Aerosol valve with a surfactant impregnated valve seal David J. Greenleaf, Philip A. Jinks 1995-06-27