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John Loyd Spence

PE Perkinelmer: 3 patents #100 of 671Top 15%
Overall (All Time): #1,579,191 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
RE39973 Metallic seal Kevin R. Felber 2008-01-01
7004478 Shallow metallic s-seal Stephen Rowland 2006-02-28
6409180 Metallic seal Kevin R. Felber 2002-06-25