RC

Robert V. Cramer

FF Flanders Filters: 2 patents #6 of 13Top 50%
Overall (All Time): #2,344,182 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4685944 High efficiency particulate air filter Thomas Allan 1987-08-11
4584005 High efficiency particulate air filter and method of fabricating same Thomas Allan 1986-04-22