DH

Douglas F. Hopson

ST Snap-Tite Technologies: 5 patents #3 of 25Top 15%
SN Snap-Tite: 2 patents #3 of 21Top 15%
PA Parker-Hannifin: 1 patents #643 of 1,656Top 40%
📍 Union City, PA: #4 of 22 inventorsTop 20%
🗺 Pennsylvania: #10,339 of 74,527 inventorsTop 15%
Overall (All Time): #648,909 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9175795 Coupling with locking bars 2015-11-03
6382251 Coupling with male half having internal pressure relief 2002-05-07
6145539 Balanced coupling with pressure bleed Wayne Wilcox 2000-11-14
6116277 Farm coupling Wayne Wilcox 2000-09-12
6095190 Coupling with female half having internal pressure relief Wayne Wilcox 2000-08-01
5951728 Coupling with filters 1999-09-14
5881769 Breakaway coupling 1999-03-16
5730185 Pressure locking dispenser half Steven Wilkins, Wayne Wilcox 1998-03-24