DF

David A. Ferriss

MA Masterspas: 3 patents #3 of 12Top 25%
Overall (All Time): #1,479,131 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9995049 Swim spa with plenum arrangement at head end Adam C. Riley 2018-06-12
9428928 Swim spa with plenum arrangement at head end Adam C. Riley 2016-08-30
9038208 Swim spa with plenum arrangement at head end Adam C. Riley 2015-05-26